CVE-2013-2064: Canonical Ubuntu Linux

Medium severity, CVSS 6.8. EPSS: 2.5% chance of exploitation in the next 30 days.

Integer overflow in X.org libxcb 1.9 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to the read_packet function.

Affected products

• Canonical Ubuntu Linux: version 10.04 only; version 12.04 only; version 12.10 only; version 13.04 only
• Debian Debian Linux: version 6.0 only; version 7.0 only
• Fedoraproject Fedora: version 19 only
• Opensuse Opensuse: version 12.2 only; version 12.3 only
• Oracle Secure Global Desktop: version 4.71 only; version 5.2 only
• X Libxcb: up to and including 1.9; version 1.1.90.1 only; version 1.1.91 only; version 1.1.92 only; version 1.1.93 only; version 1.2 only; …

Published 2013-06-15. Last modified 2026-06-16.