What’s Vulnerable › Vulnerabilities

CVE-2012-3971

• Severity: critical (CVSS 10.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-08-29 · updated 2026-06-16
• Weakness: CWE-119

Description

Summer Institute of Linguistics (SIL) Graphite 2, as used in Mozilla Firefox before 15.0, Thunderbird before 15.0, and SeaMonkey before 2.12, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to the (1) Silf::readClassMap and (2) Pass::readPass functions.

Affected products

• Mozilla Firefox: through 14.0; 1.0, 1.0-preview_release, 1.0.1, 1.0.2, 1.0.3, 1.0.4 (+140)
• Mozilla Seamonkey: through 2.11; 2.0, 2.0-alpha_1, 2.0-alpha_2, 2.0-alpha_3, 2.0-beta_1, 2.0-beta_2 (+72)
• Mozilla Thunderbird: through 14.0; 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5 (+95)

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://www.mozilla.org/security/announce/2012/mfsa2012-64.html
• http://www.securityfocus.com/bid/55304
• http://www.ubuntu.com/usn/USN-1548-1
• http://www.ubuntu.com/usn/USN-1548-2
• https://bugzilla.mozilla.org/show_bug.cgi?id=753230
• https://bugzilla.mozilla.org/show_bug.cgi?id=753623
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16062
• http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.html
• http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00011.html

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