Description
Heap-based buffer overflow in the nsBlockFrame::MarkLineDirty function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 allows remote attackers to execute arbitrary code 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.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | firefox +3 | 10.0.7-1.el6_3 | RHSA-2012:1211, RHSA-2012:1210 |
| RHEL 5 | firefox +1 | 10.0.7-1.el5_8 | RHSA-2012:1211, RHSA-2012:1210 |
| RHEL 5 | xulrunner +1 | 10.0.7-2.el5_8 | RHSA-2012:1210 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 10.0.7-1.el5_8 | RHSA-2012:1211 |
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 4
- RHSA-2012:1211 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:1210 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- 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
- RHSA-2012:1211 vendor-advisory
- 55341 vdb-entry
- http://www.mozilla.org/security/announce/2012/mfsa2012-58.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=774548
- USN-1548-1 vendor-advisory
- USN-1548-2 vendor-advisory
- oval:org.mitre.oval:def:16940 vdb-entry signature
- RHSA-2012:1210 vendor-advisory
- SUSE-SU-2012:1167 vendor-advisory
- SUSE-SU-2012:1157 vendor-advisory
- openSUSE-SU-2012:1065 vendor-advisory
- http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf