Description
Use-after-free vulnerability in the serializeToStream implementation in the XMLSerializer component in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 10.x before 10.0.12 and 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via crafted web content.
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 +2 | 10.0.12-1.el6_3 | RHSA-2013:0144 |
| RHEL 6 | thunderbird | 10.0.12-3.el6_3 | RHSA-2013:0145 |
| RHEL 5 | firefox +2 | 10.0.12-1.el5_9 | RHSA-2013:0144 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhel Productivity 5 | thunderbird | 10.0.12-3.el5_9 | RHSA-2013:0145 |
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 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
-
Firefox XMLSerializer Use After Free
exploit/windows/browser/mozilla_firefox_xmlserializer
Exploit-DB 1
- Mozilla Firefox - XMLSerializer Use-After-Free (Metasploit) EDB-27940 · remote · Aug 29, 2013 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 5
- RHSA-2013:0145 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2013:0144 Red Hat Security Advisory: firefox security update Red Hat Security Advisories (RHSA) · Jun 29, 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
- SUSE-SU-2013:0048 vendor-advisory
- oval:org.mitre.oval:def:17053 vdb-entry signature
- openSUSE-SU-2013:0131 vendor-advisory
- RHSA-2013:0145 vendor-advisory
- USN-1681-4 vendor-advisory
- RHSA-2013:0144 vendor-advisory
- http://www.mozilla.org/security/announce/2013/mfsa2013-16.html
- SUSE-SU-2013:0049 vendor-advisory
- USN-1681-1 vendor-advisory
- openSUSE-SU-2013:0149 vendor-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=814001
- USN-1681-2 vendor-advisory