From 3e34dcaf4899a5379d40d80f2eee7821b2604702 Mon Sep 17 00:00:00 2001 From: Noriko Hosoi Date: Mon, 4 May 2015 14:06:43 -0700 Subject: [PATCH 67/72] Ticket #48146 - async simple paged results issue Description: Invalid index could cause Invalid read. https://fedorahosted.org/389/ticket/48146 (cherry picked from commit 8e21bfbe4fcac79cf39e5c6b579c4bc88e05257e) --- ldap/servers/slapd/pagedresults.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/ldap/servers/slapd/pagedresults.c b/ldap/servers/slapd/pagedresults.c index a3a5fc4..327da54 100644 --- a/ldap/servers/slapd/pagedresults.c +++ b/ldap/servers/slapd/pagedresults.c @@ -138,6 +138,13 @@ pagedresults_parse_control_value( Slapi_PBlock *pb, memcpy(ptr, cookie.bv_val, cookie.bv_len); *(ptr+cookie.bv_len) = '\0'; *index = strtol(ptr, NULL, 10); + if (conn->c_pagedresults.prl_maxlen <= *index) { + rc = LDAP_PROTOCOL_ERROR; + LDAPDebug1Arg(LDAP_DEBUG_ANY, + "pagedresults_parse_control_value: invalid cookie: %d\n", + *index); + goto bail; + } slapi_ch_free_string(&ptr); prp = conn->c_pagedresults.prl_list + *index; if (!(prp->pr_search_result_set)) { /* freed and reused for the next backend. */ @@ -162,6 +169,7 @@ pagedresults_parse_control_value( Slapi_PBlock *pb, "pagedresults_parse_control_value: invalid cookie: %d\n", *index); } +bail: PR_Unlock(conn->c_mutex); LDAPDebug1Arg(LDAP_DEBUG_TRACE, -- 1.9.3