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Commit: 37fd765e3e558069c991e2b214b492fa0b6e18e8
Blob Blame History Raw
From 89f864c547014646e71862df3664e3ff33d7143d Mon Sep 17 00:00:00 2001
From: Remi Collet <remi@php.net>
Date: Tue, 18 Feb 2014 13:54:33 +0100
Subject: [PATCH] Fixed Bug #66731 file: infinite recursion

Upstream commit (available in file-5.17)

https://github.com/glensc/file/commit/3c081560c23f20b2985c285338b52c7aae9fdb0f
https://github.com/glensc/file/commit/cc9e74dfeca5265ad725acc926ef0b8d2a18ee70
---
 ext/fileinfo/libmagic/ascmagic.c      |  2 +-
 ext/fileinfo/libmagic/file.h          |  2 +-
 ext/fileinfo/libmagic/funcs.c         |  2 +-
 ext/fileinfo/libmagic/softmagic.c     |  8 ++++---
 ext/fileinfo/tests/cve-2014-1943.phpt | 39 +++++++++++++++++++++++++++++++++++
 5 files changed, 47 insertions(+), 6 deletions(-)
 create mode 100644 ext/fileinfo/tests/cve-2014-1943.phpt

diff --git a/ext/fileinfo/libmagic/ascmagic.c b/ext/fileinfo/libmagic/ascmagic.c
index 2090097..c0041df 100644
--- a/ext/fileinfo/libmagic/ascmagic.c
+++ b/ext/fileinfo/libmagic/ascmagic.c
@@ -147,7 +147,7 @@ file_ascmagic_with_encoding(struct magic_set *ms, const unsigned char *buf,
 		    == NULL)
 			goto done;
 		if ((rv = file_softmagic(ms, utf8_buf,
-		    (size_t)(utf8_end - utf8_buf), TEXTTEST, text)) == 0)
+		    (size_t)(utf8_end - utf8_buf), 0, TEXTTEST, text)) == 0)
 			rv = -1;
 	}
 
diff --git a/ext/fileinfo/libmagic/file.h b/ext/fileinfo/libmagic/file.h
index 19b6872..ab5082d 100644
--- a/ext/fileinfo/libmagic/file.h
+++ b/ext/fileinfo/libmagic/file.h
@@ -437,7 +437,7 @@ protected int file_encoding(struct magic_set *, const unsigned char *, size_t,
     unichar **, size_t *, const char **, const char **, const char **);
 protected int file_is_tar(struct magic_set *, const unsigned char *, size_t);
 protected int file_softmagic(struct magic_set *, const unsigned char *, size_t,
-    int, int);
+    size_t, int, int);
 protected int file_apprentice(struct magic_set *, const char *, int);
 protected int file_magicfind(struct magic_set *, const char *, struct mlist *);
 protected uint64_t file_signextend(struct magic_set *, struct magic *,
diff --git a/ext/fileinfo/libmagic/funcs.c b/ext/fileinfo/libmagic/funcs.c
index 9c0d2bd..011ca42 100644
--- a/ext/fileinfo/libmagic/funcs.c
+++ b/ext/fileinfo/libmagic/funcs.c
@@ -235,7 +235,7 @@ file_buffer(struct magic_set *ms, php_stream *stream, const char *inname, const
 
 	/* try soft magic tests */
 	if ((ms->flags & MAGIC_NO_CHECK_SOFT) == 0)
-		if ((m = file_softmagic(ms, ubuf, nb, BINTEST,
+		if ((m = file_softmagic(ms, ubuf, nb, 0, BINTEST,
 		    looks_text)) != 0) {
 			if ((ms->flags & MAGIC_DEBUG) != 0)
 				(void)fprintf(stderr, "softmagic %d\n", m);
diff --git a/ext/fileinfo/libmagic/softmagic.c b/ext/fileinfo/libmagic/softmagic.c
index 0671fa9..7c5f628 100644
--- a/ext/fileinfo/libmagic/softmagic.c
+++ b/ext/fileinfo/libmagic/softmagic.c
@@ -74,13 +74,13 @@ private void cvt_64(union VALUETYPE *, const struct magic *);
 /*ARGSUSED1*/		/* nbytes passed for regularity, maybe need later */
 protected int
 file_softmagic(struct magic_set *ms, const unsigned char *buf, size_t nbytes,
-    int mode, int text)
+    size_t level, int mode, int text)
 {
 	struct mlist *ml;
 	int rv, printed_something = 0, need_separator = 0;
 	for (ml = ms->mlist[0]->next; ml != ms->mlist[0]; ml = ml->next)
 		if ((rv = match(ms, ml->magic, ml->nmagic, buf, nbytes, 0, mode,
-		    text, 0, 0, &printed_something, &need_separator,
+		    text, 0, level, &printed_something, &need_separator,
 		    NULL)) != 0)
 			return rv;
 
@@ -1680,6 +1680,8 @@ mget(struct magic_set *ms, const unsigned char *s, struct magic *m,
 		break;
 
 	case FILE_INDIRECT:
+		if (offset == 0)
+			return 0;
 		if (nbytes < offset)
 			return 0;
 		sbuf = ms->o.buf;
@@ -1687,7 +1689,7 @@ mget(struct magic_set *ms, const unsigned char *s, struct magic *m,
 		ms->o.buf = NULL;
 		ms->offset = 0;
 		rv = file_softmagic(ms, s + offset, nbytes - offset,
-		    BINTEST, text);
+		    recursion_level, BINTEST, text);
 		if ((ms->flags & MAGIC_DEBUG) != 0)
 			fprintf(stderr, "indirect @offs=%u[%d]\n", offset, rv);
 		rbuf = ms->o.buf;
diff --git a/ext/fileinfo/tests/cve-2014-1943.phpt b/ext/fileinfo/tests/cve-2014-1943.phpt
new file mode 100644
index 0000000..b2e9c17
--- /dev/null
+++ b/ext/fileinfo/tests/cve-2014-1943.phpt
@@ -0,0 +1,39 @@
+--TEST--
+Bug #66731: file: infinite recursion
+--SKIPIF--
+<?php
+if (!class_exists('finfo'))
+	die('skip no fileinfo extension');
+--FILE--
+<?php
+$fd = __DIR__.'/cve-2014-1943.data';
+$fm = __DIR__.'/cve-2014-1943.magic';
+
+$a = "\105\122\000\000\000\000\000";
+$b = str_repeat("\001", 250000);
+$m =  "0           byte        x\n".
+      ">(1.b)      indirect    x\n";
+
+file_put_contents($fd, $a);
+$fi = finfo_open(FILEINFO_NONE);
+var_dump(finfo_file($fi, $fd));
+finfo_close($fi);
+
+file_put_contents($fd, $b);
+file_put_contents($fm, $m);
+$fi = finfo_open(FILEINFO_NONE, $fm);
+var_dump(finfo_file($fi, $fd));
+finfo_close($fi);
+?>
+Done
+--CLEAN--
+<?php
+@unlink(__DIR__.'/cve-2014-1943.data');
+@unlink(__DIR__.'/cve-2014-1943.magic');
+?>
+--EXPECTF--
+string(%d) "%s"
+
+Warning: finfo_file(): Failed identify data 0:(null) in %s on line %d
+bool(false)
+Done
-- 
1.8.4.3

From bd8cd98d6d70ac50dc1de350970ed9ea479895db Mon Sep 17 00:00:00 2001
From: Remi Collet <remi@php.net>
Date: Tue, 18 Feb 2014 13:57:53 +0100
Subject: [PATCH] Set fileinfo version to 1.0.5 (as in php 5.4, no diff)

---
 ext/fileinfo/php_fileinfo.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/fileinfo/php_fileinfo.h b/ext/fileinfo/php_fileinfo.h
index d8dec12..354ec7b 100644
--- a/ext/fileinfo/php_fileinfo.h
+++ b/ext/fileinfo/php_fileinfo.h
@@ -24,7 +24,7 @@
 extern zend_module_entry fileinfo_module_entry;
 #define phpext_fileinfo_ptr &fileinfo_module_entry
 
-#define PHP_FILEINFO_VERSION "1.0.5-dev"
+#define PHP_FILEINFO_VERSION "1.0.5"
 
 #ifdef PHP_WIN32
 #define PHP_FILEINFO_API __declspec(dllexport)
-- 
1.8.4.3

From 10eb0070700382f966bf260e44135e1f724a15d2 Mon Sep 17 00:00:00 2001
From: Anatol Belski <ab@php.net>
Date: Thu, 20 Feb 2014 18:53:53 +0100
Subject: [PATCH] fixed leak introduced after CVE/upgrade

---
 ext/fileinfo/libmagic/softmagic.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ext/fileinfo/libmagic/softmagic.c b/ext/fileinfo/libmagic/softmagic.c
index 7c5f628..33970e5 100644
--- a/ext/fileinfo/libmagic/softmagic.c
+++ b/ext/fileinfo/libmagic/softmagic.c
@@ -1701,6 +1701,8 @@ mget(struct magic_set *ms, const unsigned char *s, struct magic *m,
 			return -1;
 			if (file_printf(ms, "%s", rbuf) == -1)
 				return -1;
+		}
+		if (rbuf) {
 			efree(rbuf);
 		}
 		return rv;
-- 
1.8.4.3
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