Description
Use-after-free vulnerability in the BuildTextRunsScanner::BreakSink::SetBreaks function in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified 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.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 50.1.0-1.1 | openSUSE-SU-2024:10071-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 45.5.1-1.1 | openSUSE-SU-2024:10230-1 |
Advisories 2
- openSUSE-SU-2024:10230-1 MozillaThunderbird-45.5.1-1.1 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
- USN-1638-3 vendor-advisory
- 51370 third-party-advisory
- 56640 vdb-entry
- USN-1638-2 vendor-advisory
- openSUSE-SU-2012:1586 vendor-advisory
- USN-1636-1 vendor-advisory
- openSUSE-SU-2013:0175 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=767765
- 51434 third-party-advisory
- openSUSE-SU-2012:1583 vendor-advisory
- 51439 third-party-advisory
- oval:org.mitre.oval:def:16885 vdb-entry signature
- 51440 third-party-advisory
- USN-1638-1 vendor-advisory
- SUSE-SU-2012:1592 vendor-advisory
- openSUSE-SU-2012:1585 vendor-advisory
- 51381 third-party-advisory
- 51369 third-party-advisory
- http://www.mozilla.org/security/announce/2012/mfsa2012-105.html