CVE-2013-1056: Canonical Ubuntu Linux

Low severity, CVSS 1.9. EPSS: 0.3% chance of exploitation in the next 30 days.

X.org X server 1.13.3 and earlier, when not run as root, allows local users to cause a denial of service (crash) or possibly gain privileges via vectors involving cached xkb files.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 12.10 only; version 13.04 only

Published 2013-10-28. Last modified 2026-06-16.