CVE-2013-0765: Canonical Ubuntu Linux

High severity, CVSS 9.3. EPSS: 2.7% chance of exploitation in the next 30 days.

Mozilla Firefox before 19.0, Thunderbird before 17.0.3, and SeaMonkey before 2.16 do not prevent multiple wrapping of WebIDL objects, which allows remote attackers to bypass intended access restrictions via unspecified vectors.

Affected products

• Canonical Ubuntu Linux: version 10.04 only; version 11.10 only; version 12.04 only; version 12.10 only
• Mozilla Firefox: before 19.0 (fixed in 19.0)
• Mozilla Seamonkey: before 2.16 (fixed in 2.16)
• Opensuse Opensuse: version 11.4 only; version 12.1 only; version 12.2 only

Published 2013-02-19. Last modified 2026-06-16.