Description
Mozilla Gecko before 5.0, as used in Firefox before 5.0 and Thunderbird before 5.0, does not block use of a cross-domain image as a WebGL texture, which allows remote attackers to obtain approximate copies of arbitrary images via a timing attack involving a crafted WebGL fragment shader.
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 | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
Advisories 2
- 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
- https://bugzilla.mozilla.org/show_bug.cgi?id=655987
- oval:org.mitre.oval:def:14221 vdb-entry signature
- https://bugzilla.mozilla.org/show_bug.cgi?id=659349
- https://hacks.mozilla.org/2011/06/cross-domain-webgl-textures-disabled-in-firefox-5/
- SUSE-SA:2011:028 vendor-advisory
- http://www.contextis.co.uk/resources/blog/webgl/
- https://developer.mozilla.org/en/WebGL/Cross-Domain_Textures
- https://bugzilla.mozilla.org/show_bug.cgi?id=656277
- [whatwg] 20110314 Canvas and drawWindow mailing-list
- http://www.mozilla.org/security/announce/2011/mfsa2011-25.html