CVE-2012-3956

CRITICAL 10.0CVE-2012-3956 · Published 29/08/2012 · updated 16/06/2026

In short

CVE-2012-3956 is a CRITICAL (CVSS 10.0) vulnerability affecting firefox (mozilla), seamonkey (mozilla), thunderbird (mozilla).
Chance of exploitation in the next 30 days (EPSS): 5.4%, higher than 92.7% of all vulnerabilities.
Fix: update to 10.0.7, 15.0, 2.12 or later.

Package	Affected versions	Patched versions
firefox mozilla	`≥ 10.0, < 10.0.7< 15.0`	`10.0.715.0`
seamonkey mozilla	`< 2.12`	`2.12`
thunderbird mozilla	`< 15.0`	`15.0`
thunderbird esr mozilla	`≥ 10.0, < 10.0.7`	`10.0.7`

Description

Use-after-free vulnerability in the MediaStreamGraphThreadRunnable::Run function 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 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.

References

lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.html · Mailing List
lists.opensuse.org/opensuse-security-announce/2012-09/msg00011.html · Mailing List
lists.opensuse.org/opensuse-security-announce/2012-09/msg00014.html · Mailing List
rhn.redhat.com/errata/RHSA-2012-1210.html · Third Party Advisory
rhn.redhat.com/errata/RHSA-2012-1211.html · Third Party Advisory
mozilla.org/security/announce/2012/mfsa2012-58.html · Vendor Advisory
securityfocus.com/bid/55320 · Third Party Advisory
ubuntu.com/usn/USN-1548-1 · Third Party Advisory
ubuntu.com/usn/USN-1548-2 · Third Party Advisory
xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf · Third Party Advisory
bugzilla.mozilla.org/show_bug.cgi

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