Description
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 49.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown 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 16.04 LTS | firefox | 49.0+build4-0ubuntu0.16.04.1 | USN-3076-1 |
| Ubuntu 14.04 LTS | firefox | 49.0+build4-0ubuntu0.14.04.1 | USN-3076-1 |
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-3076-1 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
- https://bugzilla.mozilla.org/show_bug.cgi?id=1276413
- https://bugzilla.mozilla.org/show_bug.cgi?id=1268034
- https://bugzilla.mozilla.org/show_bug.cgi?id=1296078
- http://www.mozilla.org/security/announce/2016/mfsa2016-85.html
- 93052 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1297099
- https://bugzilla.mozilla.org/show_bug.cgi?id=1290244
- GLSA-201701-15 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1296087
- https://bugzilla.mozilla.org/show_bug.cgi?id=1282746
- 1036852 vdb-entry