pidgin is vulnerable to denial of service (DoS) attacks. The vulnerability exists as the Yahoo! protocol plugin in libpurple in Pidgin before 2.10.8 does not properly validate UTF-8 data, which allows remote attackers to cause a denial of service (application crash) via crafted byte sequences.
hg.pidgin.im/pidgin/main/rev/b0345c25f886
lists.opensuse.org/opensuse-updates/2014-02/msg00039.html
lists.opensuse.org/opensuse-updates/2014-03/msg00005.html
pidgin.im/news/security/?id=70
www.pidgin.im/news/security/
www.ubuntu.com/usn/USN-2100-1
access.redhat.com/security/updates/classification/#moderate
rhn.redhat.com/errata/RHSA-2014-0139.html