Description
Use-after-free vulnerability in the nsContentUtils::RemoveScriptBlocker function in Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | icedove | 17.0.7-1~deb7u1 | DSA-2720-1 |
| Debian 7 | iceweasel | 17.0.6esr-1~deb7u1 | DSA-2699-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | firefox | 17.0.6-1.el6_4 | RHSA-2013:0820 |
| RHEL 6 | xulrunner +2 | 17.0.6-2.el6_4 | RHSA-2013:0821, RHSA-2013:0820 |
| RHEL 5 | firefox +2 | 17.0.6-1.el5_9 | RHSA-2013:0820 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 17.0.6-1.el5_9 | RHSA-2013:0821 |
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 6
- RHSA-2013:0821 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2013:0820 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- DSA-2699-1 iceweasel - several Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-2720-1 icedove - several Debian Security (DSA / DLA) · Mar 9, 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
- DSA-2699 vendor-advisory
- MDVSA-2013:165 vendor-advisory
- openSUSE-SU-2013:0825 vendor-advisory
- USN-1823-1 vendor-advisory
- 59862 vdb-entry
- RHSA-2013:0821 vendor-advisory
- openSUSE-SU-2013:0929 vendor-advisory
- oval:org.mitre.oval:def:16988 vdb-entry signature
- openSUSE-SU-2013:0831 vendor-advisory
- RHSA-2013:0820 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=851781
- openSUSE-SU-2013:0834 vendor-advisory
- openSUSE-SU-2013:0946 vendor-advisory
- USN-1822-1 vendor-advisory
- http://www.mozilla.org/security/announce/2013/mfsa2013-48.html