CVE-2013-0800: Canonical Ubuntu Linux

Medium severity, CVSS 6.8. EPSS: 3.9% chance of exploitation in the next 30 days.

Integer signedness error in the pixman_fill_sse2 function in pixman-sse2.c in Pixman, as distributed with Cairo and used in Mozilla Firefox before 20.0, Firefox ESR 17.x before 17.0.5, Thunderbird before 17.0.5, Thunderbird ESR 17.x before 17.0.5, SeaMonkey before 2.17, and other products, allows remote attackers to execute arbitrary code via crafted values that trigger attempted use of a (1) negative box boundary or (2) negative box size, leading to an out-of-bounds write operation.

Affected products

• Canonical Ubuntu Linux: version 10.04 only; version 11.10 only; version 12.04 only; version 12.10 only
• Debian Debian Linux: version 7.0 only
• Mozilla Firefox: before 20.0 (fixed in 20.0); from 17.0, before 17.0.5 (fixed in 17.0.5)
• Mozilla Seamonkey: before 2.17 (fixed in 2.17)
• Mozilla Thunderbird: before 17.0.5 (fixed in 17.0.5)
• Mozilla Thunderbird ESR: from 17.0, before 17.0.5 (fixed in 17.0.5)
• Opensuse Opensuse: version 11.4 only; version 12.1 only; version 12.2 only; version 12.3 only
• Suse Linux Enterprise Desktop: version 10 only; version 11 only
• Suse Linux Enterprise Server: version 10 only; version 11 only
• Suse Linux Enterprise Software Development Kit: version 10 only; version 11 only

Published 2013-04-03. Last modified 2026-06-16.