What’s Vulnerable › Vulnerabilities

CVE-2012-3967

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2012-08-29 · updated 2026-06-16
• Weakness: CWE-787

Description

The WebGL implementation in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 on Linux, when a large number of sampler uniforms are used, does not properly interact with Mesa drivers, which allows remote attackers to execute arbitrary code or cause a denial of service (stack memory corruption) via a crafted web site.

Affected products

• Canonical Ubuntu Linux: 10.04, 11.04, 11.10, 12.04
• Mozilla Firefox: before 15.0; from 10.0 before 10.0.7 — fixed in 10.0.7, 15.0
• Mozilla Seamonkey: before 2.12 — fixed in 2.12
• Mozilla Thunderbird: before 15.0 — fixed in 15.0
• Mozilla Thunderbird ESR: from 10.0 before 10.0.7 — fixed in 10.0.7
• Opensuse: 12.2
• RedHat Enterprise Linux Desktop: 5.0, 6.0
• RedHat Enterprise Linux Eus: 6.3
• RedHat Enterprise Linux Server: 5.0, 6.0
• RedHat Enterprise Linux Workstation: 5.0, 6.0
• SUSE Linux Enterprise Server 15 SP1: 10-sp4, 11-sp2
• SUSE Linux Enterprise Server: 10-sp4, 11-sp2
• SUSE Linux Enterprise Software Development Kit: 10-sp4, 11-sp2

How to fix

Upgrade to a fixed version: Mozilla Firefox 10.0.7, 15.0; Mozilla Seamonkey 2.12; Mozilla Thunderbird 15.0; Mozilla Thunderbird ESR 10.0.7. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.html
• http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00011.html
• http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00014.html
• http://rhn.redhat.com/errata/RHSA-2012-1210.html
• http://rhn.redhat.com/errata/RHSA-2012-1211.html
• http://www.mozilla.org/security/announce/2012/mfsa2012-62.html
• http://www.securityfocus.com/bid/55277
• http://www.ubuntu.com/usn/USN-1548-1
• http://www.ubuntu.com/usn/USN-1548-2
• http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf
• https://bugzilla.mozilla.org/show_bug.cgi?id=777028
• http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.html

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