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diff -up pidgin-2.10.7/libpurple/protocols/yahoo/libymsg.c.CVE-2012-6152 pidgin-2.10.7/libpurple/protocols/yahoo/libymsg.c
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--- pidgin-2.10.7/libpurple/protocols/yahoo/libymsg.c.CVE-2012-6152	2013-02-11 04:16:52.000000000 -0500
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+++ pidgin-2.10.7/libpurple/protocols/yahoo/libymsg.c	2014-01-27 10:20:14.473648650 -0500
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@@ -21,6 +21,12 @@
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  *
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  */
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4133dc
+/*
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+ * Note: When handling the list of struct yahoo_pair's from an incoming
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+ * packet the value might not be UTF-8. You should either validate that
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+ * it is UTF-8 using g_utf8_validate() or use yahoo_string_decode().
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+ */
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+
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 #include "internal.h"
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4133dc
 #include "account.h"
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@@ -592,14 +598,24 @@ static void yahoo_process_list_15(Purple
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 			yd->current_list15_grp = yahoo_string_decode(gc, pair->value, FALSE);
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 			break;
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 		case 7: /* buddy's s/n */
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-			g_free(temp);
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-			temp = g_strdup(purple_normalize(account, pair->value));
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+			if (g_utf8_validate(pair->value, -1, NULL)) {
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+				g_free(temp);
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+				temp = g_strdup(purple_normalize(account, pair->value));
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+			} else {
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+				purple_debug_warning("yahoo", "yahoo_process_list_15 "
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+						"got non-UTF-8 string for key %d\n", pair->key);
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+			}
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 			break;
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 		case 241: /* user on federated network */
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 			fed = strtol(pair->value, NULL, 10);
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 			break;
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 		case 59: /* somebody told cookies come here too, but im not sure */
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-			yahoo_process_cookie(yd, pair->value);
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+			if (g_utf8_validate(pair->value, -1, NULL)) {
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+				yahoo_process_cookie(yd, pair->value);
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+			} else {
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+				purple_debug_warning("yahoo", "yahoo_process_list_15 "
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+						"got non-UTF-8 string for key %d\n", pair->key);
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+			}
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 			break;
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 		case 317: /* Stealth Setting */
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 			stealth = strtol(pair->value, NULL, 10);
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@@ -662,22 +678,42 @@ static void yahoo_process_list(PurpleCon
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 				g_string_append(yd->tmp_serv_blist, pair->value);
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 			break;
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 		case 88:
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-			if (!yd->tmp_serv_ilist)
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-				yd->tmp_serv_ilist = g_string_new(pair->value);
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-			else
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-				g_string_append(yd->tmp_serv_ilist, pair->value);
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+			if (g_utf8_validate(pair->value, -1, NULL)) {
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+				if (!yd->tmp_serv_ilist)
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+					yd->tmp_serv_ilist = g_string_new(pair->value);
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+				else
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+					g_string_append(yd->tmp_serv_ilist, pair->value);
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+			} else {
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+				purple_debug_warning("yahoo", "yahoo_process_list "
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+						"got non-UTF-8 string for key %d\n", pair->key);
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+			}
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 			break;
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 		case 89:
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-			yd->profiles = g_strsplit(pair->value, ",", -1);
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+			if (g_utf8_validate(pair->value, -1, NULL)) {
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+				yd->profiles = g_strsplit(pair->value, ",", -1);
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+			} else {
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+				purple_debug_warning("yahoo", "yahoo_process_list "
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+						"got non-UTF-8 string for key %d\n", pair->key);
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+			}
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 			break;
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 		case 59: /* cookies, yum */
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-			yahoo_process_cookie(yd, pair->value);
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+			if (g_utf8_validate(pair->value, -1, NULL)) {
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+				yahoo_process_cookie(yd, pair->value);
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+			} else {
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+				purple_debug_warning("yahoo", "yahoo_process_list "
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+						"got non-UTF-8 string for key %d\n", pair->key);
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+			}
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 			break;
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 		case YAHOO_SERVICE_PRESENCE_PERM:
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-			if (!yd->tmp_serv_plist)
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-				yd->tmp_serv_plist = g_string_new(pair->value);
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-			else
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-				g_string_append(yd->tmp_serv_plist, pair->value);
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+			if (g_utf8_validate(pair->value, -1, NULL)) {
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+				if (!yd->tmp_serv_plist)
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+					yd->tmp_serv_plist = g_string_new(pair->value);
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+				else
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+					g_string_append(yd->tmp_serv_plist, pair->value);
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+			} else {
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+				purple_debug_warning("yahoo", "yahoo_process_list "
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+						"got non-UTF-8 string for key %d\n", pair->key);
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+			}
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 			break;
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 		}
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 	}
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@@ -700,6 +736,12 @@ static void yahoo_process_list(PurpleCon
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 			grp = yahoo_string_decode(gc, split[0], FALSE);
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 			buddies = g_strsplit(split[1], ",", -1);
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 			for (bud = buddies; bud && *bud; bud++) {
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+				if (!g_utf8_validate(*bud, -1, NULL)) {
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+					purple_debug_warning("yahoo", "yahoo_process_list "
4133dc
+							"got non-UTF-8 string for bud\n");
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+					continue;
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+				}
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+
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 				norm_bud = g_strdup(purple_normalize(account, *bud));
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 				f = yahoo_friend_find_or_new(gc, norm_bud);
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@@ -794,14 +836,26 @@ static void yahoo_process_notify(PurpleC
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4133dc
 	while (l) {
4133dc
 		struct yahoo_pair *pair = l->data;
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-		if (pair->key == 4 || pair->key == 1)
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-			from = pair->value;
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+		if (pair->key == 4 || pair->key == 1) {
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
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+				from = pair->value;
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+			} else {
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+				purple_debug_warning("yahoo", "yahoo_process_notify "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
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+			}
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+		}
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 		if (pair->key == 49)
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 			msg = pair->value;
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 		if (pair->key == 13)
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 			stat = pair->value;
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-		if (pair->key == 14)
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-			game = pair->value;
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+		if (pair->key == 14) {
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+			if (g_utf8_validate(pair->value, -1, NULL)) {
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+				game = pair->value;
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+			} else {
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+				purple_debug_warning("yahoo", "yahoo_process_notify "
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+						"got non-UTF-8 string for key %d\n", pair->key);
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+			}
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+		}
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 		if (pair->key == 11)
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 			val_11 = strtol(pair->value, NULL, 10);
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 		if (pair->key == 241)
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@@ -905,10 +959,15 @@ static void yahoo_process_sms_message(Pu
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 	while (l != NULL) {
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 		struct yahoo_pair *pair = l->data;
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 		if (pair->key == 4) {
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-			sms = g_new0(struct _yahoo_im, 1);
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-			sms->from = g_strdup_printf("+%s", pair->value);
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-			sms->time = time(NULL);
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-			sms->utf8 = TRUE;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
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+				sms = g_new0(struct _yahoo_im, 1);
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+				sms->from = g_strdup_printf("+%s", pair->value);
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+				sms->time = time(NULL);
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+				sms->utf8 = TRUE;
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+			} else {
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+				purple_debug_warning("yahoo", "yahoo_process_sms_message "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 		}
4133dc
 		if (pair->key == 14) {
4133dc
 			if (sms)
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@@ -917,8 +976,14 @@ static void yahoo_process_sms_message(Pu
4133dc
 		if (pair->key == 68)
4133dc
 			if(sms)
4133dc
 				g_hash_table_insert(yd->sms_carrier, g_strdup(sms->from), g_strdup(pair->value));
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-		if (pair->key == 16)
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-			server_msg = pair->value;
4133dc
+		if (pair->key == 16) {
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				server_msg = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_sms_message "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
+		}
4133dc
 		l = l->next;
4133dc
 	}
4133dc
 
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@@ -972,13 +1037,18 @@ static void yahoo_process_message(Purple
4133dc
 		while (l != NULL) {
4133dc
 			struct yahoo_pair *pair = l->data;
4133dc
 			if (pair->key == 4 || pair->key == 1) {
4133dc
-				im = g_new0(struct _yahoo_im, 1);
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-				list = g_slist_append(list, im);
4133dc
-				im->from = pair->value;
4133dc
-				im->time = time(NULL);
4133dc
-				im->utf8 = TRUE;
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-				im->fed = YAHOO_FEDERATION_NONE;
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-				im->fed_from = g_strdup(im->from);
4133dc
+				if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+					im = g_new0(struct _yahoo_im, 1);
4133dc
+					list = g_slist_append(list, im);
4133dc
+					im->from = pair->value;
4133dc
+					im->time = time(NULL);
4133dc
+					im->utf8 = TRUE;
4133dc
+					im->fed = YAHOO_FEDERATION_NONE;
4133dc
+					im->fed_from = g_strdup(im->from);
4133dc
+				} else {
4133dc
+					purple_debug_warning("yahoo", "yahoo_process_message "
4133dc
+							"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+				}
4133dc
 			}
4133dc
 			if (im && pair->key == 5)
4133dc
 				im->active_id = pair->value;
4133dc
@@ -1034,7 +1104,7 @@ static void yahoo_process_message(Purple
4133dc
 				}
4133dc
 			}
4133dc
 			/* IMV key */
4133dc
-			if (im && pair->key == 63)
4133dc
+			if (im && pair->key == 63 && g_utf8_validate(pair->value, -1, NULL))
4133dc
 			{
4133dc
 				/* Check for the Doodle IMV, no IMvironment for federated buddies */
4133dc
 				if (im->from != NULL && im->fed == YAHOO_FEDERATION_NONE)
4133dc
@@ -1173,10 +1243,22 @@ static void yahoo_process_sysmessage(Pur
4133dc
 	while (l) {
4133dc
 		struct yahoo_pair *pair = l->data;
4133dc
 
4133dc
-		if (pair->key == 5)
4133dc
-			me = pair->value;
4133dc
-		if (pair->key == 14)
4133dc
-			msg = pair->value;
4133dc
+		if (pair->key == 5) {
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				me = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_sysmessage "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
+		}
4133dc
+		if (pair->key == 14) {
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				msg = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_sysmessage "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
+		}
4133dc
 
4133dc
 		l = l->next;
4133dc
 	}
4133dc
@@ -1334,7 +1416,12 @@ static void yahoo_buddy_auth_req_15(Purp
4133dc
 
4133dc
 			switch (pair->key) {
4133dc
 			case 4:
4133dc
-				temp = pair->value;
4133dc
+				if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+					temp = pair->value;
4133dc
+				} else {
4133dc
+					purple_debug_warning("yahoo", "yahoo_buddy_auth_req_15 "
4133dc
+							"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+				}
4133dc
 				break;
4133dc
 			case 13:
4133dc
 				response = strtol(pair->value, NULL, 10);
4133dc
@@ -1389,22 +1476,42 @@ static void yahoo_buddy_auth_req_15(Purp
4133dc
 
4133dc
 			switch (pair->key) {
4133dc
 			case 4:
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-				temp = pair->value;
4133dc
+				if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+					temp = pair->value;
4133dc
+				} else {
4133dc
+					purple_debug_warning("yahoo", "yahoo_buddy_auth_req_15 "
4133dc
+							"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+				}
4133dc
 				break;
4133dc
 			case 5:
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-				add_req->id = g_strdup(pair->value);
4133dc
+				if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+					add_req->id = g_strdup(pair->value);
4133dc
+				} else {
4133dc
+					purple_debug_warning("yahoo", "yahoo_buddy_auth_req_15 "
4133dc
+							"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+				}
4133dc
 				break;
4133dc
 			case 14:
4133dc
 				msg = pair->value;
4133dc
 				break;
4133dc
 			case 216:
4133dc
-				firstname = pair->value;
4133dc
+				if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+					firstname = pair->value;
4133dc
+				} else {
4133dc
+					purple_debug_warning("yahoo", "yahoo_buddy_auth_req_15 "
4133dc
+							"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+				}
4133dc
 				break;
4133dc
 			case 241:
4133dc
 				add_req->fed = strtol(pair->value, NULL, 10);
4133dc
 				break;
4133dc
 			case 254:
4133dc
-				lastname = pair->value;
4133dc
+				if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+					lastname = pair->value;
4133dc
+				} else {
4133dc
+					purple_debug_warning("yahoo", "yahoo_buddy_auth_req_15 "
4133dc
+							"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+				}
4133dc
 				break;
4133dc
 
4133dc
 			}
4133dc
@@ -1485,10 +1592,20 @@ static void yahoo_buddy_added_us(PurpleC
4133dc
 
4133dc
 		switch (pair->key) {
4133dc
 		case 1:
4133dc
-			add_req->id = g_strdup(pair->value);
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				add_req->id = g_strdup(pair->value);
4133dc
+			} else {
4133dc
+					purple_debug_warning("yahoo", "yahoo_buddy_added_us "
4133dc
+							"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 3:
4133dc
-			add_req->who = g_strdup(pair->value);
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				add_req->who = g_strdup(pair->value);
4133dc
+			} else {
4133dc
+					purple_debug_warning("yahoo", "yahoo_buddy_added_us "
4133dc
+							"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 15: /* time, for when they add us and we're offline */
4133dc
 			break;
4133dc
@@ -1540,10 +1657,20 @@ static void yahoo_buddy_denied_our_add_o
4133dc
 
4133dc
 		switch (pair->key) {
4133dc
 		case 3:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_buddy_denied_our_add_old "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 14:
4133dc
-			msg = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				msg = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_buddy_denied_our_add_old "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		}
4133dc
 		l = l->next;
4133dc
@@ -1640,12 +1767,28 @@ static void yahoo_process_mail(PurpleCon
4133dc
 		struct yahoo_pair *pair = l->data;
4133dc
 		if (pair->key == 9)
4133dc
 			count = strtol(pair->value, NULL, 10);
4133dc
-		else if (pair->key == 43)
4133dc
-			who = pair->value;
4133dc
-		else if (pair->key == 42)
4133dc
-			email = pair->value;
4133dc
-		else if (pair->key == 18)
4133dc
-			subj = pair->value;
4133dc
+		else if (pair->key == 43) {
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_mail "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
+		} else if (pair->key == 42) {
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				email = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_mail "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
+		} else if (pair->key == 18) {
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				subj = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_mail "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
+		}
4133dc
 		l = l->next;
4133dc
 	}
4133dc
 
4133dc
@@ -2075,10 +2218,22 @@ static void yahoo_process_auth(PurpleCon
4133dc
 
4133dc
 	while (l) {
4133dc
 		struct yahoo_pair *pair = l->data;
4133dc
-		if (pair->key == 94)
4133dc
-			seed = pair->value;
4133dc
-		if (pair->key == 1)
4133dc
-			sn = pair->value;
4133dc
+		if (pair->key == 94) {
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				seed = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_auth "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
+		}
4133dc
+		if (pair->key == 1) {
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				sn = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_auth "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
+		}
4133dc
 		if (pair->key == 13)
4133dc
 			m = atoi(pair->value);
4133dc
 		l = l->next;
4133dc
@@ -2150,10 +2305,20 @@ static void yahoo_process_ignore(PurpleC
4133dc
 		struct yahoo_pair *pair = l->data;
4133dc
 		switch (pair->key) {
4133dc
 		case 0:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_ignore "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 1:
4133dc
-			me = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				me = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_ignore "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 13:
4133dc
 			/* 1 == ignore, 2 == unignore */
4133dc
@@ -2222,8 +2387,14 @@ static void yahoo_process_authresp(Purpl
4133dc
 
4133dc
 		if (pair->key == 66)
4133dc
 			err = strtol(pair->value, NULL, 10);
4133dc
-		else if (pair->key == 20)
4133dc
-			url = pair->value;
4133dc
+		else if (pair->key == 20) {
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				url = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_authresp "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
+		}
4133dc
 
4133dc
 		l = l->next;
4133dc
 	}
4133dc
@@ -2311,7 +2482,12 @@ static void yahoo_process_addbuddy(Purpl
4133dc
 			err = strtol(pair->value, NULL, 10);
4133dc
 			break;
4133dc
 		case 7:
4133dc
-			temp = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				temp = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_addbuddy "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 65:
4133dc
 			group = pair->value;
4133dc
@@ -2468,11 +2644,16 @@ static void yahoo_p2p_process_p2pfilexfe
4133dc
 
4133dc
 		switch (pair->key) {
4133dc
 		case 4:
4133dc
-			who = pair->value;
4133dc
-			if(strncmp(who, p2p_data->host_username, strlen(p2p_data->host_username)) != 0) {
4133dc
-				/* from whom are we receiving the packets ?? */
4133dc
-				purple_debug_warning("yahoo","p2p: received data from wrong user\n");
4133dc
-				return;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+				if(strncmp(who, p2p_data->host_username, strlen(p2p_data->host_username)) != 0) {
4133dc
+					/* from whom are we receiving the packets ?? */
4133dc
+					purple_debug_warning("yahoo","p2p: received data from wrong user\n");
4133dc
+					return;
4133dc
+				}
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_p2p_process_p2pfilexfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
 			}
4133dc
 			break;
4133dc
 		case 13:
4133dc
@@ -2841,15 +3022,25 @@ static void yahoo_process_p2p(PurpleConn
4133dc
 			/* our identity */
4133dc
 			break;
4133dc
 		case 4:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_p2p "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 1:
4133dc
 			/* who again, the master identity this time? */
4133dc
 			break;
4133dc
 		case 12:
4133dc
-			base64 = pair->value;
4133dc
-			/* so, this is an ip address. in base64. decoded it's in ascii.
4133dc
-			   after strtol, it's in reversed byte order. Who thought this up?*/
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				base64 = pair->value;
4133dc
+				/* so, this is an ip address. in base64. decoded it's in ascii.
4133dc
+				   after strtol, it's in reversed byte order. Who thought this up?*/
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_p2p "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 13:
4133dc
 			val_13 = strtol(pair->value, NULL, 10);
4133dc
@@ -2938,7 +3129,12 @@ static void yahoo_process_audible(Purple
4133dc
 
4133dc
 		switch (pair->key) {
4133dc
 		case 4:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_audible "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 5:
4133dc
 			/* us */
4133dc
@@ -2946,11 +3142,21 @@ static void yahoo_process_audible(Purple
4133dc
 		case 230:
4133dc
 			/* the audible, in foo.locale.bar.baz format
4133dc
 			   eg: base.tw.smiley.smiley43 */
4133dc
-			id = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				id = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_audible "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 231:
4133dc
 			/* the text of the audible */
4133dc
-			msg = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				msg = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_audible "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 232:
4133dc
 			/* SHA-1 hash of audible SWF file (eg: 4e8691499d9c0fb8374478ff9720f4a9ea4a4915) */
4133dc
diff -up pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_aliases.c.CVE-2012-6152 pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_aliases.c
4133dc
--- pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_aliases.c.CVE-2012-6152	2013-02-11 04:16:52.000000000 -0500
4133dc
+++ pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_aliases.c	2014-01-27 10:20:14.473648650 -0500
4133dc
@@ -696,8 +696,14 @@ void yahoo_process_contact_details(Purpl
4133dc
 		struct yahoo_pair *pair = l->data;
4133dc
 		switch (pair->key) {
4133dc
 			case 4:
4133dc
-				who = pair->value;	/* This is the person who sent us the details.
4133dc
-									   But not necessarily about himself. */
4133dc
+				if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+					/* This is the person who sent us the details.
4133dc
+					   But not necessarily about himself. */
4133dc
+					who = pair->value;
4133dc
+				} else {
4133dc
+					purple_debug_warning("yahoo", "yahoo_process_contact_details "
4133dc
+							"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+				}
4133dc
 				break;
4133dc
 			case 5:
4133dc
 				break;
4133dc
@@ -709,8 +715,13 @@ void yahoo_process_contact_details(Purpl
4133dc
 				   and look into the xml instead to see who the information is about. */
4133dc
 				break;
4133dc
 			case 280:
4133dc
-				xml = pair->value;
4133dc
-				parse_contact_details(yd, who, xml);
4133dc
+				if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+					xml = pair->value;
4133dc
+					parse_contact_details(yd, who, xml);
4133dc
+				} else {
4133dc
+					purple_debug_warning("yahoo", "yahoo_process_contact_details "
4133dc
+							"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+				}
4133dc
 				break;
4133dc
 		}
4133dc
 	}
4133dc
diff -up pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_filexfer.c.CVE-2012-6152 pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_filexfer.c
4133dc
--- pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_filexfer.c.CVE-2012-6152	2013-02-11 04:16:52.000000000 -0500
4133dc
+++ pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_filexfer.c	2014-01-27 10:20:14.474648740 -0500
4133dc
@@ -749,25 +749,60 @@ void yahoo_process_p2pfilexfer(PurpleCon
4133dc
 
4133dc
 		switch(pair->key) {
4133dc
 		case 5:         /* Get who the packet is for */
4133dc
-			me = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				me = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_p2pfilexfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 4:         /* Get who the packet is from */
4133dc
-			from = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				from = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_p2pfilexfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 49:        /* Get the type of service */
4133dc
-			service = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				service = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_p2pfilexfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 14:        /* Get the 'message' of the packet */
4133dc
-			message = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				message = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_p2pfilexfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 13:        /* Get the command associated with this packet */
4133dc
-			command = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				command = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_p2pfilexfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 63:        /* IMVironment name and version */
4133dc
-			imv = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				imv = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_p2pfilexfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 64:        /* Not sure, but it does vary with initialization of Doodle */
4133dc
-			unknown = pair->value; /* So, I'll keep it (for a little while atleast) */
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				unknown = pair->value; /* So, I'll keep it (for a little while atleast) */
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_p2pfilexfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		}
4133dc
 
4133dc
@@ -813,16 +848,36 @@ void yahoo_process_filetransfer(PurpleCo
4133dc
 
4133dc
 		switch (pair->key) {
4133dc
 		case 4:
4133dc
-			from = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				from = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetransfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 5:
4133dc
-			to = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				to = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetransfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 14:
4133dc
-			msg = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				msg = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetransfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 20:
4133dc
-			url = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				url = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetransfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 38:
4133dc
 			expires = strtol(pair->value, NULL, 10);
4133dc
@@ -834,10 +889,20 @@ void yahoo_process_filetransfer(PurpleCo
4133dc
 			filesize = atol(pair->value);
4133dc
 			break;
4133dc
 		case 49:
4133dc
-			service = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				service = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetransfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 63:
4133dc
-			imv = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				imv = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetransfer "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		}
4133dc
 	}
4133dc
@@ -1616,20 +1681,40 @@ void yahoo_process_filetrans_15(PurpleCo
4133dc
 
4133dc
 		switch (pair->key) {
4133dc
 		case 4:
4133dc
-			from = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				from = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 5:
4133dc
-			to = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				to = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 265:
4133dc
-			xfer_peer_idstring = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				xfer_peer_idstring = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 27:
4133dc
 			filename_list = g_slist_prepend(filename_list, g_strdup(pair->value));
4133dc
 			nooffiles++;
4133dc
 			break;
4133dc
 		case 28:
4133dc
-			size_list = g_slist_prepend(size_list, g_strdup(pair->value));
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				size_list = g_slist_prepend(size_list, g_strdup(pair->value));
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 222:
4133dc
 			val_222 = atol(pair->value);
4133dc
@@ -1638,10 +1723,20 @@ void yahoo_process_filetrans_15(PurpleCo
4133dc
 
4133dc
 		/* check for p2p and imviron .... not sure it comes by this service packet. Since it was bundled with filexfer in old ymsg version, still keeping it. */
4133dc
 		case 49:
4133dc
-			service = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				service = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 63:
4133dc
-			imv = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				imv = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		/* end check */
4133dc
 
4133dc
@@ -1803,7 +1898,12 @@ void yahoo_process_filetrans_info_15(Pur
4133dc
 			to = pair->value;
4133dc
 			break;
4133dc
 		case 265:
4133dc
-			xfer_peer_idstring = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				xfer_peer_idstring = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_info_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 27:
4133dc
 			filename = pair->value;
4133dc
@@ -1816,10 +1916,20 @@ void yahoo_process_filetrans_info_15(Pur
4133dc
 			/* 249 has value 1 or 2 when doing p2p transfer and value 3 when relaying through yahoo server */
4133dc
 			break;
4133dc
 		case 250:
4133dc
-			url = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				url = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_info_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 251:
4133dc
-			xfer_idstring_for_relay = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				xfer_idstring_for_relay = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_info_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		}
4133dc
 	}
4133dc
@@ -1902,10 +2012,20 @@ void yahoo_process_filetrans_acc_15(Purp
4133dc
 
4133dc
 		switch (pair->key) {
4133dc
 		case 251:
4133dc
-			xfer_idstring_for_relay = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				xfer_idstring_for_relay = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_acc_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 265:
4133dc
-			xfer_peer_idstring = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				xfer_peer_idstring = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_acc_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 66:
4133dc
 			val_66 = atol(pair->value);
4133dc
@@ -1914,7 +2034,13 @@ void yahoo_process_filetrans_acc_15(Purp
4133dc
 			val_249 = atol(pair->value);
4133dc
 			break;
4133dc
 		case 250:
4133dc
-			url = pair->value;	/* we get a p2p url here when sending file, connected as client */
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				/* we get a p2p url here when sending file, connected as client */
4133dc
+				url = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_filetrans_acc_15 "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		}
4133dc
 	}
4133dc
diff -up pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_friend.c.CVE-2012-6152 pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_friend.c
4133dc
--- pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_friend.c.CVE-2012-6152	2013-02-11 04:16:52.000000000 -0500
4133dc
+++ pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_friend.c	2014-01-27 10:20:14.474648740 -0500
4133dc
@@ -158,7 +158,12 @@ void yahoo_process_presence(PurpleConnec
4133dc
 
4133dc
 		switch (pair->key) {
4133dc
 			case 7:
4133dc
-				temp = pair->value;
4133dc
+				if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+					temp = pair->value;
4133dc
+				} else {
4133dc
+					purple_debug_warning("yahoo", "yahoo_process_presence "
4133dc
+							"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+				}
4133dc
 				break;
4133dc
 			case 31:
4133dc
 				value = strtol(pair->value, NULL, 10);
4133dc
diff -up pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_picture.c.CVE-2012-6152 pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_picture.c
4133dc
--- pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_picture.c.CVE-2012-6152	2013-02-11 04:16:52.000000000 -0500
4133dc
+++ pidgin-2.10.7/libpurple/protocols/yahoo/yahoo_picture.c	2014-01-27 10:20:14.475648826 -0500
4133dc
@@ -84,10 +84,20 @@ void yahoo_process_picture(PurpleConnect
4133dc
 		switch (pair->key) {
4133dc
 		case 1:
4133dc
 		case 4:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_picture "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 5:
4133dc
-			us = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				us = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_picture "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 13: {
4133dc
 				int tmp;
4133dc
@@ -100,7 +110,12 @@ void yahoo_process_picture(PurpleConnect
4133dc
 				break;
4133dc
 			}
4133dc
 		case 20:
4133dc
-			url = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				url = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_picture "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 192:
4133dc
 			checksum = strtol(pair->value, NULL, 10);
4133dc
@@ -154,7 +169,12 @@ void yahoo_process_picture_checksum(Purp
4133dc
 
4133dc
 		switch (pair->key) {
4133dc
 		case 4:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_picture_checksum "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 5:
4133dc
 			/* us */
4133dc
@@ -197,7 +217,12 @@ void yahoo_process_picture_upload(Purple
4133dc
 			/* filename on our computer. */
4133dc
 			break;
4133dc
 		case 20: /* url at yahoo */
4133dc
-			url = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				url = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_picture_upload "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 		case 38: /* timestamp */
4133dc
 			break;
4133dc
 		}
4133dc
@@ -225,7 +250,12 @@ void yahoo_process_avatar_update(PurpleC
4133dc
 
4133dc
 		switch (pair->key) {
4133dc
 		case 4:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_avatar_upload "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 5:
4133dc
 			/* us */
4133dc
diff -up pidgin-2.10.7/libpurple/protocols/yahoo/yahoochat.c.CVE-2012-6152 pidgin-2.10.7/libpurple/protocols/yahoo/yahoochat.c
4133dc
--- pidgin-2.10.7/libpurple/protocols/yahoo/yahoochat.c.CVE-2012-6152	2013-02-11 04:16:52.000000000 -0500
4133dc
+++ pidgin-2.10.7/libpurple/protocols/yahoo/yahoochat.c	2014-01-27 10:20:14.475648826 -0500
4133dc
@@ -156,15 +156,25 @@ void yahoo_process_conference_invite(Pur
4133dc
 			room = yahoo_string_decode(gc, pair->value, FALSE);
4133dc
 			break;
4133dc
 		case 50: /* inviter */
4133dc
-			who = pair->value;
4133dc
-			g_string_append_printf(members, "%s\n", who);
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+				g_string_append_printf(members, "%s\n", who);
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_conference_invite "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 51: /* This user is being invited to the conference. Comes with status = 11, so we wont reach here */
4133dc
 			break;
4133dc
 		case 52: /* Invited users. Assuming us invited, since we got this packet */
4133dc
 			break; /* break needed, or else we add the users to the conference before they accept the invitation */
4133dc
 		case 53: /* members who have already joined the conference */
4133dc
-			g_string_append_printf(members, "%s\n", pair->value);
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				g_string_append_printf(members, "%s\n", pair->value);
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_conference_invite "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 58:
4133dc
 			g_free(msg);
4133dc
@@ -220,7 +230,12 @@ void yahoo_process_conference_decline(Pu
4133dc
 			room = yahoo_string_decode(gc, pair->value, FALSE);
4133dc
 			break;
4133dc
 		case 54:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_conference_decline "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 14:
4133dc
 			g_free(msg);
4133dc
@@ -277,7 +292,12 @@ void yahoo_process_conference_logon(Purp
4133dc
 			room = yahoo_string_decode(gc, pair->value, FALSE);
4133dc
 			break;
4133dc
 		case 53:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_conference_logon "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		}
4133dc
 	}
4133dc
@@ -309,7 +329,12 @@ void yahoo_process_conference_logoff(Pur
4133dc
 			room = yahoo_string_decode(gc, pair->value, FALSE);
4133dc
 			break;
4133dc
 		case 56:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_conference_logoff "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		}
4133dc
 	}
4133dc
@@ -340,7 +365,12 @@ void yahoo_process_conference_message(Pu
4133dc
 			room = yahoo_string_decode(gc, pair->value, FALSE);
4133dc
 			break;
4133dc
 		case 3:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_conference_message "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 14:
4133dc
 			msg = pair->value;
4133dc
@@ -506,18 +536,38 @@ void yahoo_process_chat_join(PurpleConne
4133dc
 			topic = yahoo_string_decode(gc, pair->value, TRUE);
4133dc
 			break;
4133dc
 		case 128:
4133dc
-			someid = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				someid = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_chat_join "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 108: /* number of joiners */
4133dc
 			break;
4133dc
 		case 129:
4133dc
-			someotherid = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				someotherid = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_chat_join "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 130:
4133dc
-			somebase64orhashosomething = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				somebase64orhashosomething = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_chat_join "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 126:
4133dc
-			somenegativenumber = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				somenegativenumber = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_chat_join "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 13: /* this is 1. maybe its the type of room? (normal, user created, private, etc?) */
4133dc
 			break;
4133dc
@@ -528,7 +578,12 @@ void yahoo_process_chat_join(PurpleConne
4133dc
 		   info about individual room members, (including us) */
4133dc
 
4133dc
 		case 109: /* the yahoo id */
4133dc
-			members = g_list_append(members, pair->value);
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				members = g_list_append(members, pair->value);
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_chat_join "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 110: /* age */
4133dc
 			break;
4133dc
@@ -625,8 +680,14 @@ void yahoo_process_chat_exit(PurpleConne
4133dc
 			g_free(room);
4133dc
 			room = yahoo_string_decode(gc, pair->value, TRUE);
4133dc
 		}
4133dc
-		if (pair->key == 109)
4133dc
-			who = pair->value;
4133dc
+		if (pair->key == 109) {
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_chat_exit "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
+		}
4133dc
 	}
4133dc
 
4133dc
 	if (who && room) {
4133dc
@@ -658,10 +719,20 @@ void yahoo_process_chat_message(PurpleCo
4133dc
 			room = yahoo_string_decode(gc, pair->value, TRUE);
4133dc
 			break;
4133dc
 		case 109:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_chat_message "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 117:
4133dc
-			msg = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				msg = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_chat_message "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 124:
4133dc
 			msgtype = strtol(pair->value, NULL, 10);
4133dc
@@ -724,7 +795,12 @@ void yahoo_process_chat_addinvite(Purple
4133dc
 			msg = yahoo_string_decode(gc, pair->value, FALSE);
4133dc
 			break;
4133dc
 		case 119:
4133dc
-			who = pair->value;
4133dc
+			if (g_utf8_validate(pair->value, -1, NULL)) {
4133dc
+				who = pair->value;
4133dc
+			} else {
4133dc
+				purple_debug_warning("yahoo", "yahoo_process_chat_addinvite "
4133dc
+						"got non-UTF-8 string for key %d\n", pair->key);
4133dc
+			}
4133dc
 			break;
4133dc
 		case 118: /* us */
4133dc
 			break;