Description
The Off Main Thread Compositing (OMTC) implementation in Mozilla Firefox before 37.0 attempts to use memset for a memory region of negative length during interaction with the mozilla::layers::BufferTextureClient::AllocateForSurface function, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors that trigger rendering of 2D graphics content.
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 | 37.0+build2-0ubuntu0.14.04.1 | USN-2550-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
Advisories 2
- USN-2550-1 firefox vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2024:10071-1 MozillaFirefox-50.1.0-1.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025
References
- 1031996 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1099437
- GLSA-201512-10 vendor-advisory
- http://www.mozilla.org/security/announce/2015/mfsa2015-38.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- USN-2550-1 vendor-advisory
- openSUSE-SU-2015:0677 vendor-advisory