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Fencer Intel
critical 9.3

CVE-2012-3967 json

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 befo…

published 2012-08-29 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-3911

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.4%
EPSS 4.4% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

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.

Patch / fix

  • mozilla firefox 10.0.7, 15.0
  • mozilla seamonkey 2.12
  • mozilla thunderbird 15.0
  • mozilla thunderbird_esr 10.0.7
  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 10.0.7-1.el5_8
  • thunderbird RHEL 6 10.0.7-1.el6_3
  • firefox RHEL 5 10.0.7-1.el5_8
  • firefox RHEL 6 10.0.7-1.el6_3
  • xulrunner RHEL 5 10.0.7-2.el5_8
  • xulrunner RHEL 6 10.0.7-1.el6_3

red hat advisories RHSA-2012:1211RHSA-2012:1210

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-3967 updated cvss 6.8

Mozilla: WebGL use-after-free and memory corruption (MFSA 2012-62)

  • Red Hat Enterprise Linux (v. 5 server) firefox 10.0.7-1.el5_8, xulrunner 10.0.7-2.el5_8 Red Hat Enterprise Linux Desktop (v. 5 client) firefox 10.0.7-1.el5_8, xulrunner 10.0.7-2.el5_8, thunderbird 10.0.7-1.el5_8 Red Hat Enterprise Linux Desktop (v. 6) firefox 10.0.7-1.el6_3, xulrunner 10.0.7-1.el6_3, thunderbird 10.0.7-1.el6_3 Red Hat Enterprise Linux Desktop Optional (v. 6) xulrunner 10.0.7-1.el6_3 Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 10.0.7-1.el6_3, xulrunner 10.0.7-1.el6_3 Red Hat Enterprise Linux Server (v. 6) firefox 10.0.7-1.el6_3, xulrunner 10.0.7-1.el6_3
    +4 more products
    Red Hat Enterprise Linux Server Optional (v. 6) xulrunner 10.0.7-1.el6_3, thunderbird 10.0.7-1.el6_3 Red Hat Enterprise Linux Workstation (v. 6) firefox 10.0.7-1.el6_3, xulrunner 10.0.7-1.el6_3, thunderbird 10.0.7-1.el6_3 Red Hat Enterprise Linux Workstation Optional (v. 6) xulrunner 10.0.7-1.el6_3 Red Hat RHEL Desktop Workstation (v. 5 client) xulrunner 10.0.7-2.el5_8
    fixed: vendor fix RHSA-2012:1210
  • Red Hat RHEL Optional Productivity Applications (v. 5 server) thunderbird 10.0.7-1.el5_8
    fixed: vendor fix RHSA-2012:1211

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.39% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • bugzilla.mozilla.org https://bugzilla.mozilla.org/show_bug.cgi?id=777028 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.