Description
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 44.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to uninitialized memory encountered during brotli data compression, and other vectors.
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 | 44.0+build3-0ubuntu0.14.04.1 | USN-2880-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
Advisories 2
- USN-2880-1 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
- https://bugzilla.mozilla.org/show_bug.cgi?id=1206675
- https://bugzilla.mozilla.org/show_bug.cgi?id=1231121
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209365
- https://bugzilla.mozilla.org/show_bug.cgi?id=1229825
- https://bugzilla.mozilla.org/show_bug.cgi?id=1207298
- 1034825 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1234576
- https://bugzilla.mozilla.org/show_bug.cgi?id=1186973
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209358
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209366
- USN-2880-1 vendor-advisory
- http://www.mozilla.org/security/announce/2016/mfsa2016-01.html
- USN-2880-2 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1222015
- openSUSE-SU-2016:0309 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1180064
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209368
- https://bugzilla.mozilla.org/show_bug.cgi?id=1209546
- 81953 vdb-entry
- GLSA-201605-06 vendor-advisory
- openSUSE-SU-2016:0306 vendor-advisory