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CVE-2012-1940

Impact:
Critical
Public Date:
2012-06-05
CWE:
(CWE-416|CWE-119)
Bugzilla:
827843: CVE-2012-1940 CVE-2012-1941 CVE-2012-1947 Mozilla: Buffer overflow and use-after-free issues found using Address Sanitizer (MFSA 2012-40)

The MITRE CVE dictionary describes this issue as:

Use-after-free vulnerability in the nsFrameList::FirstChild function in Mozilla Firefox 4.x through 12.0, Firefox ESR 10.x before 10.0.5, Thunderbird 5.0 through 12.0, Thunderbird ESR 10.x before 10.0.5, and SeaMonkey before 2.10 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) by changing the size of a container of absolutely positioned elements in a column.

Find out more about CVE-2012-1940 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

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
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2012:0715 2012-06-06
Red Hat Enterprise Linux 5 (thunderbird) RHSA-2012:0715 2012-06-06
Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) (thunderbird) RHSA-2012:0715 2012-06-06
Red Hat Enterprise Linux 5 (firefox) RHSA-2012:0710 2012-06-05
Red Hat Enterprise Linux 6 (firefox) RHSA-2012:0710 2012-06-05

Affected Packages State

Platform Package State
Red Hat Enterprise Linux version 5 xulrunner 10.0.5-1.el5_8 Fixed
Red Hat Enterprise Linux version 6 xulrunner 10.0.5-1.el6_2 Fixed

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges security researcher Abhishek Arya of Google as the original reporter.