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CVE-2012-4193

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

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 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 (xulrunner) RHSA-2012:1361 2012-10-12
Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) (thunderbird) RHSA-2012:1362 2012-10-12
Red Hat Enterprise Linux 6 (thunderbird) RHSA-2012:1362 2012-10-12
Red Hat Enterprise Linux 5 (xulrunner) RHSA-2012:1361 2012-10-12
Red Hat Enterprise Linux 5 (thunderbird) RHSA-2012:1362 2012-10-12

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 6 firefox Affected
Red Hat Enterprise Linux 5 firefox Affected

Acknowledgements

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

External References

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