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CVE-2012-3966

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 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a negative height value in a BMP image within a .ICO file, related to (1) improper handling of the transparency bitmask by the nsICODecoder component and (2) improper processing of the alpha channel by the nsBMPDecoder component.

Details Source

Mitre

Public Date

2012-08-28 00:00:00

Impact

Critical

Bugzilla

CVE-2012-3966 Mozilla: Memory corruption with bitmap format images with negative height (MFSA 2012-61)

Bugzilla ID

851 918

CVSS Status

verified

Base Score

6.80

Base Metrics

AV:N/AC:M/Au:N/C:P/I:P/A:P

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Frédéric Hoguin as the original reporter of this flaw.

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 5 (firefox) RHSA-2012:1210 2012-08-29
Red Hat Enterprise Linux 5 (thunderbird) RHSA-2012:1211 2012-08-29
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2012:1211 2012-08-29
Red Hat Enterprise Linux 6 (firefox) RHSA-2012:1210 2012-08-29
Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) (thunderbird) RHSA-2012:1211 2012-08-29

Affected Packages State

Platform Package State
Red Hat Enterprise Linux version 6 xulrunner 10.0.7-1.el6_3 Fixed
Red Hat Enterprise Linux version 5 xulrunner 10.0.7-2.el5_8 Fixed