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CVE-2012-4191

9.3 · HIGH

The mozilla::net::FailDelayManager::Lookup function in the WebSockets implementation in Mozilla Firefox before 16.0.1, Thunderbird before 16.0.1, and SeaMonkey before 2.13.1 allows remote attackers…

Published Oct 12, 2012mozillaCWE-787EPSS 3.87%

Overview

CVE-2012-4191 is a high-severity vulnerability affecting mozilla firefox. It was published on October 12, 2012 and has a CVSS 2.0 base score of 9.3 (HIGH).

This vulnerability has a CVSS 2.0 base score of 9.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The mozilla::net::FailDelayManager::Lookup function in the WebSockets implementation in Mozilla Firefox before 16.0.1, Thunderbird before 16.0.1, and SeaMonkey before 2.13.1 allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors.

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
mozillafirefox>= 0, < 16.0.1Affected
mozillaseamonkey>= 0, < 2.13.1Affected
mozillathunderbird>= 0, < 16.0.1Affected

References

Refosvdb.org/86125Refsecunia.com/advisories/50904Refsecunia.com/advisories/50929Refsecunia.com/advisories/50984Refwww.mozilla.org/security/announce/2012/mfsa2012-88.htmlRefwww.securitytracker.com/id?1027653Refwww.ubuntu.com/usn/USN-1608-1Refwww.ubuntu.com/usn/USN-1611-1Refbugzilla.mozilla.org/show_bug.cgi?id=798045Refexchange.xforce.ibmcloud.com/vulnerabilities/79209

How CyberStrike helps

Frequently asked questions

What is CVE-2012-4191?

CVE-2012-4191 is a high-severity vulnerability affecting mozilla firefox. It was published on October 12, 2012 and has a CVSS 2.0 base score of 9.3 (HIGH).

How severe is CVE-2012-4191?

This vulnerability has a CVSS 2.0 base score of 9.3, 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-2012-4191?

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-2012-4191?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2012-4191 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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