Skip to navigation

CVE Database

CVE-2012-4193

Impact: Critical
Public: 2012-10-11
Bugzilla: 865215: CVE-2012-4193 Mozilla: defaultValue security checks not applied (MFSA 2012-89)

Details

The MITRE CVE dictionary describes this issue as:

Mozilla Firefox before 16.0.1, Firefox ESR 10.x before 10.0.9, Thunderbird before 16.0.1, Thunderbird ESR 10.x before 10.0.9, and SeaMonkey before 2.13.1 omit a security check in the defaultValue function during the unwrapping of security wrappers, which allows remote attackers to bypass the Same Origin Policy and read the properties of a Location object, or execute arbitrary JavaScript code, via a crafted web site.

Find out more about CVE-2012-4193 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-2012:1362 October 12, 2012
Red Hat Enterprise Linux Desktop version 5 (thunderbird) RHSA-2012:1362 October 12, 2012
Red Hat Enterprise Linux version 5 (xulrunner) RHSA-2012:1361 October 12, 2012
Red Hat Enterprise Linux version 6 (thunderbird) RHSA-2012:1362 October 12, 2012
Red Hat Enterprise Linux version 6 (xulrunner) RHSA-2012:1361 October 12, 2012

External References

http://www.mozilla.org/security/announce/2012/mfsa2012-89.html

Acknowledgements

Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges moz_bug_r_a4 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.