What’s Vulnerable › Vulnerabilities

CVE-2011-2366

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2011-06-30 · updated 2026-06-16
• Weakness: CWE-20

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.

Affected products

• Mozilla Firefox: through 4.0.1; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+126)
• Mozilla Gecko: through 2; 1.7, 1.8, 1.8.1, 1.9, 1.9.1, 1.9.2
• Mozilla Thunderbird: through 3.1.11; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+78)

References

• http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00001.html
• http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2011-March/030882.html
• http://www.contextis.co.uk/resources/blog/webgl/
• http://www.mozilla.org/security/announce/2011/mfsa2011-25.html
• https://bugzilla.mozilla.org/show_bug.cgi?id=655987
• https://bugzilla.mozilla.org/show_bug.cgi?id=656277
• https://bugzilla.mozilla.org/show_bug.cgi?id=659349
• https://developer.mozilla.org/en/WebGL/Cross-Domain_Textures
• https://hacks.mozilla.org/2011/06/cross-domain-webgl-textures-disabled-in-firefox-5/
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14221
• http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00001.html
• http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2011-March/030882.html

Get alerted when CVE-2011-2366 or the next vulnerability affects your stack