A buffer overflows vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent from the server could potentially result in arbitrary code execution. A malicious server or an attacker who intercepts the network traffic can send an invalid size for a packet which will trigger a buffer overflow. External references: http://www.talosintel.com/reports/TALOS-2016-0118/ http://www.pidgin.im/news/security/?id=92 Upstream fix: https://bitbucket.org/pidgin/main/commits/19f89eda8587