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CVE-2012-0459

7.5 · HIGH

The Cascading Style Sheets (CSS) implementation in Mozilla Firefox 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey…

Published Mar 14, 2012mozillaCWE-264EPSS 3.87%

Overview

CVE-2012-0459 is a high-severity vulnerability affecting mozilla firefox. It was published on March 14, 2012 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The Cascading Style Sheets (CSS) implementation in Mozilla Firefox 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via dynamic modification of a keyframe followed by access to the cssText of the keyframe.

Remediation

Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
mozillaseamonkey0Affected

References

Reflists.opensuse.org/opensuse-security-announce/2012-03/msg00014.htmlReflists.opensuse.org/opensuse-updates/2012-03/msg00042.htmlRefrhn.redhat.com/errata/RHSA-2012-0387.htmlRefrhn.redhat.com/errata/RHSA-2012-0388.htmlRefsecunia.com/advisories/48359Refsecunia.com/advisories/48402Refsecunia.com/advisories/48496Refsecunia.com/advisories/48513Refsecunia.com/advisories/48553Refsecunia.com/advisories/48561

How CyberStrike helps

Frequently asked questions

What is CVE-2012-0459?

CVE-2012-0459 is a high-severity vulnerability affecting mozilla firefox. It was published on March 14, 2012 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2012-0459?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2012-0459?

Check the references section for vendor advisories and patches from mozilla. Update firefox to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2012-0459?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2012-0459 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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