Ubuntu Security Notice 1014-1 - Pierre Nogues discovered that Pidgin incorrectly handled malformed SLP messages 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. This issue only affected Ubuntu 8.04 LTS, 9.10 and 10.04 LTS. Daniel Atallah discovered that Pidgin incorrectly handled the return code of the Base64 decoding function. A remote attacker could send a specially crafted message and cause Pidgin to crash, leading to a denial of service.
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Mandriva Linux Security Advisory 2010-097 - The msn_emoticon_msg function in slp.c in the MSN protocol plugin in libpurple in Pidgin before 2.7.0 allows remote attackers to cause a denial of service (application crash) via a custom emoticon in a malformed SLP message. Packages for 2008.0 and 2009.0 are provided due to the Extended Maintenance Program for those products. The updated packages have been patched to correct this issue.
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