CVE-2014-3694: Canonical Ubuntu Linux

Medium severity, CVSS 6.4. EPSS: 2.3% chance of exploitation in the next 30 days.

The (1) bundled GnuTLS SSL/TLS plugin and the (2) bundled OpenSSL SSL/TLS plugin in libpurple in Pidgin before 2.10.10 do not properly consider the Basic Constraints extension during verification of X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 14.10 only
• Debian Debian Linux: version 7.0 only
• Opensuse Opensuse: version 12.3 only; version 13.1 only; version 13.2 only
• Pidgin Pidgin: up to and including 2.10.9; version 2.10.0 only; version 2.10.1 only; version 2.10.2 only; version 2.10.3 only; version 2.10.4 only; …

Published 2014-10-29. Last modified 2026-06-17.