Description
The SVG implementation in Mozilla Firefox 8.0, Thunderbird 8.0, and SeaMonkey 2.5 does not properly interact with DOMAttrModified event handlers, which allows remote attackers to cause a denial of service (out-of-bounds memory access) or possibly have unspecified other impact via vectors involving removal of SVG elements.
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.
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 nsSVGValue Out-of-Bounds Access Vulnerability
exploit/windows/browser/mozilla_nssvgvalue
Exploit-DB 1
- Mozilla Firefox 7 / 8 < 8.0.1 - nsSVGValue Out-of-Bounds Access (Metasploit) EDB-18847 · remote · May 9, 2012 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 3
- 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
- openSUSE-SU-2012:0417 vendor-advisory
- http://www.mozilla.org/security/announce/2011/mfsa2011-55.html
- MDVSA-2012:031 vendor-advisory
- MDVSA-2011:192 vendor-advisory
- 48823 third-party-advisory
- USN-1401-1 vendor-advisory
- 47334 third-party-advisory
- 1026447 vdb-entry
- 1026446 vdb-entry
- 49055 third-party-advisory
- firefox-domattrmodified-code-exec(71910) vdb-entry
- 1026445 vdb-entry
- 77953 vdb-entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=708186
- 48495 third-party-advisory
- 48553 third-party-advisory
- 47302 third-party-advisory
- openSUSE-SU-2012:0039 vendor-advisory
- oval:org.mitre.oval:def:14664 vdb-entry signature
- openSUSE-SU-2012:0007 vendor-advisory