sametime.c in the Sametime protocol plugin in libpurple in Pidgin before 2.10.7 does not properly terminate long user IDs, which allows remote servers to cause a denial of service (application crash) via a crafted packet.
hg.pidgin.im/pidgin/main/rev/c31cf8de31cd
lists.opensuse.org/opensuse-security-announce/2013-03/msg00003.html
lists.opensuse.org/opensuse-security-announce/2013-03/msg00006.html
lists.opensuse.org/opensuse-security-announce/2013-03/msg00007.html
www.pidgin.im/news/security/?id=67
www.ubuntu.com/usn/USN-1746-1
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18340