Description
Multiple unspecified vulnerabilities in the browser engine 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 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.
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 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 7
- 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-2024:14572-1 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
- DSA-2699 vendor-advisory
- MDVSA-2013:165 vendor-advisory
- openSUSE-SU-2013:0825 vendor-advisory
- USN-1823-1 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=866544
- RHSA-2013:0821 vendor-advisory
- openSUSE-SU-2013:0929 vendor-advisory
- http://www.mozilla.org/security/announce/2013/mfsa2013-41.html
- oval:org.mitre.oval:def:17062 vdb-entry signature
- openSUSE-SU-2013:0831 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=864558
- 59855 vdb-entry
- RHSA-2013:0820 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=852315
- https://bugzilla.mozilla.org/show_bug.cgi?id=808402
- openSUSE-SU-2013:0834 vendor-advisory
- openSUSE-SU-2013:0946 vendor-advisory
- USN-1822-1 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=849597
- https://bugzilla.mozilla.org/show_bug.cgi?id=787283