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CVE-2011-4601

Status Candidate

Overview

family_feedbag.c in the oscar protocol plugin in libpurple in Pidgin before 2.10.1 does not perform the expected UTF-8 validation on message data, which allows remote attackers to cause a denial of service (application crash) via a crafted (1) AIM or (2) ICQ message associated with buddy-list addition.

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
Red Hat Security Advisory 2011-1821-01
Posted Dec 15, 2011
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2011-1821-01 - Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously. An input sanitization flaw was found in the way the AOL Open System for Communication in Realtime protocol plug-in in Pidgin, used by the AOL ICQ and AIM instant messaging systems, escaped certain UTF-8 characters. A remote attacker could use this flaw to crash Pidgin via a specially-crafted OSCAR message. Multiple NULL pointer dereference flaws were found in the Jingle extension of the Extensible Messaging and Presence Protocol protocol plug-in in Pidgin. A remote attacker could use these flaws to crash Pidgin via a specially-crafted Jingle multimedia message.

tags | advisory, remote, protocol
systems | linux, redhat
advisories | CVE-2011-4601, CVE-2011-4602
SHA-256 | 8898c9e665950277a124090594f6f201ce5f2d533466d4f40f014414cdf3c633
Red Hat Security Advisory 2011-1820-01
Posted Dec 15, 2011
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2011-1820-01 - Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously. An input sanitization flaw was found in the way the AOL Open System for Communication in Realtime protocol plug-in in Pidgin, used by the AOL ICQ and AIM instant messaging systems, escaped certain UTF-8 characters. A remote attacker could use this flaw to crash Pidgin via a specially-crafted OSCAR message. An input sanitization flaw was found in the way the Pidgin SILC protocol plug-in escaped certain UTF-8 characters in channel messages. A remote attacker could use this flaw to crash Pidgin via a specially-crafted SILC message.

tags | advisory, remote, protocol
systems | linux, redhat
advisories | CVE-2011-4601, CVE-2011-4602, CVE-2011-4603
SHA-256 | 46920b2be0ad0a71dc0f6800ddcb5927c42aa93032c295654bdee52801a20d3f
Mandriva Linux Security Advisory 2011-183
Posted Dec 11, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-183 - When receiving various stanzas related to voice and video chat, the XMPP protocol plugin failed to ensure that the incoming message contained all required fields, and would crash if certain fields were missing. When receiving various messages related to requesting or receiving authorization for adding a buddy to a buddy list, the oscar protocol plugin failed to validate that a piece of text was UTF-8. In some cases invalid UTF-8 data would lead to a crash. When receiving various incoming messages, the SILC protocol plugin failed to validate that a piece of text was UTF-8. In some cases invalid UTF-8 data would lead to a crash. This update provides pidgin 2.10.1, which is not vulnerable to these issues.

tags | advisory, protocol
systems | linux, mandriva
advisories | CVE-2011-4601, CVE-2011-3594
SHA-256 | 2d414ceea15e43838e4951396fac9e14dee36394f9b458f9c9cc1ccd87f5eee1
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