CVE-2016-2377: Canonical Ubuntu Linux

High severity, CVSS 8.1. EPSS: 2.6% chance of exploitation in the next 30 days.

A buffer overflow vulnerability exists in the handling of the MXIT protocol in Pidgin. Specially crafted MXIT data sent by the server could potentially result in an out-of-bounds write of one byte. A malicious server can send a negative content-length in response to a HTTP request triggering the vulnerability.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 15.10 only
• Debian Debian Linux: version 8.0 only
• Pidgin Pidgin: up to and including 2.10.12

Published 2017-01-06. Last modified 2026-06-17.