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CVE-2011-4939

Status Candidate

Overview

The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) by changing a nickname while in an XMPP chat room.

Related Files

Ubuntu Security Notice USN-1500-1
Posted Jul 9, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1500-1 - Evgeny Boger discovered that Pidgin incorrectly handled buddy list messages in the AIM and ICQ protocol handlers. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service. This issue only affected Ubuntu 10.04 LTS, 11.04 and 11.10. Thijs Alkemade discovered that Pidgin incorrectly handled malformed voice and video chat requests in the XMPP protocol handler. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service. This issue only affected Ubuntu 10.04 LTS, 11.04 and 11.10. Various other issues were also addressed.

tags | advisory, remote, denial of service, protocol
systems | linux, ubuntu
advisories | CVE-2011-4601, CVE-2011-4602, CVE-2011-4603, CVE-2011-4922, CVE-2011-4939, CVE-2012-1178, CVE-2012-2214, CVE-2012-2318, CVE-2012-3374, CVE-2011-4601, CVE-2011-4602, CVE-2011-4603, CVE-2011-4922, CVE-2011-4939, CVE-2012-1178, CVE-2012-2214, CVE-2012-2318, CVE-2012-3374
SHA-256 | a749885c45d3ed6a82077ecb3953f73e5275c512532f5583f18a44f27c49d270
Mandriva Linux Security Advisory 2012-029
Posted Mar 17, 2012
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2012-029 - The pidgin_conv_chat_rename_user function in gtkconv.c in Pidgin before 2.10.2 allows remote attackers to cause a denial of service by changing a nickname while in an XMPP chat room. The msn_oim_report_to_user function in oim.c in the MSN protocol plugin in libpurple in Pidgin before 2.10.2 allows remote servers to cause a denial of service via an OIM message that lacks UTF-8 encoding. This update provides pidgin 2.10.2, which is not vulnerable to these issues.

tags | advisory, remote, denial of service, protocol
systems | linux, mandriva
advisories | CVE-2011-4939, CVE-2012-1178
SHA-256 | 37f419c48c8228cd782abfdb04b3b0eab3d820556f4c26443a5a2a7c6987a8ab
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