Description
The sse2_composite_src_x888_8888 function in Pixman, as used in Cairo in Mozilla Firefox 28.0 and SeaMonkey 2.25 on Windows, allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds write and application crash) by painting on a CANVAS element.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | firefox | 29.0+build1-0ubuntu0.14.04.2 | USN-2185-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 3
- USN-2185-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- openSUSE-SU-2014:0599 vendor-advisory
- openSUSE-SU-2014:0629 vendor-advisory
- 59866 third-party-advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=963962
- http://www.mozilla.org/security/announce/2014/mfsa2014-41.html
- USN-2185-1 vendor-advisory
- 1030164 vdb-entry
- 1030163 vdb-entry
- FEDORA-2014-5829 vendor-advisory