markup.c in the MXit protocol plugin in libpurple in Pidgin before 2.10.10 allows remote servers to cause a denial of service (application crash) via a large length value in an emoticon response.
hg.pidgin.im/pidgin/main/rev/6436e14bdb9d
lists.opensuse.org/opensuse-updates/2014-11/msg00023.html
lists.opensuse.org/opensuse-updates/2014-11/msg00037.html
pidgin.im/news/security/?id=87
secunia.com/advisories/60741
secunia.com/advisories/61968
www.debian.org/security/2014/dsa-3055
www.ubuntu.com/usn/USN-2390-1
access.redhat.com/errata/RHSA-2017:1854