Mandriva Linux Security Advisory 2010-085 - The OSCAR protocol plugin in libpurple in Pidgin before 2.6.3 and Adium before 1.3.7 allows remote attackers to cause a denial of service (application crash) via crafted contact-list data for ICQ and possibly AIM, as demonstrated by the SIM IM client. Directory traversal vulnerability in slp.c in the MSN protocol plugin in libpurple in Pidgin 2.6.4 and Adium 1.3.8 allows remote attackers to read arbitrary files via a .. (dot dot) in an application/x-msnmsgrp2p MSN emoticon (aka custom smiley) request, a related issue to CVE-2004-0122. Directory traversal vulnerability in slp.c in the MSN protocol plugin in libpurple in Pidgin 2.6.4 and Adium 1.3.8 allows remote attackers to read arbitrary files via a .. (dot dot) in an application/x-msnmsgrp2p MSN emoticon (aka custom smiley) request, a related issue to CVE-2004-0122. Other issues have also been identified.
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Ubuntu Security Notice 902-1 - Fabian Yamaguchi discovered that Pidgin incorrectly validated all fields of an incoming message in the MSN protocol handler. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service. Sadrul Habib Chowdhury discovered that Pidgin incorrectly handled certain nicknames in Finch group chat rooms. A remote attacker could use a specially crafted nickname and cause Pidgin to crash, leading to a denial of service. Antti Hayrynen discovered that Pidgin incorrectly handled large numbers of smileys. A remote attacker could send a specially crafted message and cause Pidgin to become unresponsive, leading to a denial of service.
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Mandriva Linux Security Advisory 2010-041 - Multiple security vulnerabilities has been identified and fixed Certain malformed SLP messages can trigger a crash because the MSN protocol plugin fails to check that all pieces of the message are set correctly. In a user in a multi-user chat room has a nickname containing ' ' then libpurple ends up having two users with username ' ' in the room, and Finch crashes in this situation. We do not believe there is a possibility of remote code execution. oCERT notified us about a problem in Pidgin, where a large amount of processing time will be used when inserting many smileys into an IM or chat window. This should not cause a crash, but Pidgin can become unusable slow. Packages for 2008.0 are provided for Corporate Desktop 2008.0 customers. This update provides pidgin 2.6.6, which is not vulnerable to these issues.
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