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CVE Database

CVE-2012-4187

Impact: Critical
Public: 2012-10-09
Bugzilla: 863626: CVE-2012-4185 CVE-2012-4186 CVE-2012-4187 CVE-2012-4188 Mozilla: Heap memory corruption issues found using Address Sanitizer (MFSA 2012-86)

Details

The MITRE CVE dictionary describes this issue as:

Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 do not properly manage a certain insPos variable, which allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and assertion failure) via unspecified vectors.

Find out more about CVE-2012-4187 from the MITRE CVE dictionary and NIST NVD.

CVSS v2 metrics

Base Score: 6.8
Base Metrics: AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector: Network
Access Complexity: Medium
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: Partial
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
RHEL Optional Productivity Applications version 5 (thunderbird) RHSA-2012:1351 October 09, 2012
Red Hat Enterprise Linux Desktop version 5 (thunderbird) RHSA-2012:1351 October 09, 2012
Red Hat Enterprise Linux version 5 (firefox) RHSA-2012:1350 October 09, 2012
Red Hat Enterprise Linux version 6 (firefox) RHSA-2012:1350 October 09, 2012
Red Hat Enterprise Linux version 6 (thunderbird) RHSA-2012:1351 October 09, 2012

External References

http://www.mozilla.org/security/announce/2012/mfsa2012-86.html

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Atte Kettunen as the original reporter.

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.