Description
Use-after-free vulnerability in the browser engine in Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 allows remote attackers to execute arbitrary code via vectors involving an empty argument to the array.join function in conjunction with the triggering of garbage collection.
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 | 10.0.3-1.el6_2 | RHSA-2012:0388, RHSA-2012:0387 |
| RHEL 5 | firefox +3 | 10.0.3-1.el5_8 | RHSA-2012:0388, RHSA-2012:0387 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 10.0.3-1.el5_8 | RHSA-2012:0388 |
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-2012:0388 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:0387 Red Hat Security Advisory: firefox security and bug fix 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
- http://www.zdnet.com/blog/security/mozilla-knew-of-pwn2own-bug-before-cansecwest/10757
- openSUSE-SU-2012:0417 vendor-advisory
- 48402 third-party-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=735104
- MDVSA-2012:031 vendor-advisory
- http://pwn2own.zerodayinitiative.com/status.html
- 48624 third-party-advisory
- SUSE-SU-2012:0424 vendor-advisory
- USN-1400-5 vendor-advisory
- 48414 third-party-advisory
- 48359 third-party-advisory
- 48823 third-party-advisory
- USN-1401-1 vendor-advisory
- USN-1400-4 vendor-advisory
- http://www.zdnet.com/blog/security/researchers-hack-into-newest-firefox-with-zero-day-flaw/10663
- 48629 third-party-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=720079
- USN-1400-3 vendor-advisory
- RHSA-2012:0387 vendor-advisory
- 48496 third-party-advisory
- SUSE-SU-2012:0425 vendor-advisory
- oval:org.mitre.oval:def:14170 vdb-entry signature
- http://www.mozilla.org/security/announce/2012/mfsa2012-19.html
- USN-1400-2 vendor-advisory
- 52465 vdb-entry
- MDVSA-2012:032 vendor-advisory
- 1026803 vdb-entry
- 48495 third-party-advisory
- 48553 third-party-advisory
- USN-1400-1 vendor-advisory
- 48561 third-party-advisory
- RHSA-2012:0388 vendor-advisory
- 1026801 vdb-entry
- 1026804 vdb-entry
- 48513 third-party-advisory