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CVE Database

CVE-2012-4210

Impact: Critical
Public: 2012-11-20
Bugzilla: 877633: CVE-2012-4210 Mozilla: CSS and HTML injection through Style Inspector (MFSA 2012-104)

Details

The MITRE CVE dictionary describes this issue as:

The Style Inspector in Mozilla Firefox before 17.0 and Firefox ESR 10.x before 10.0.11 does not properly restrict the context of HTML markup and Cascading Style Sheets (CSS) token sequences, which allows user-assisted remote attackers to execute arbitrary JavaScript code with chrome privileges via a crafted stylesheet.

Find out more about CVE-2012-4210 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
Red Hat Enterprise Linux version 5 (firefox) RHSA-2012:1482 November 20, 2012
Red Hat Enterprise Linux version 6 (firefox) RHSA-2012:1482 November 20, 2012

External References

http://www.mozilla.org/security/announce/2012/mfsa2012-104.html

Acknowledgements

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