CVE-2009-2462 Memory corruption in n/a

What is CVE-2009-2462?

CVE-2009-2462 is a critical memory corruption vulnerability in Mozilla Firefox, published on 22 Jul 2009. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The browser engine in Mozilla Firefox before 3.0.12 and Thunderbird allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to (1) the frame chain and synchronous events, (2) a SetMayHaveFrame assertion and nsCSSFrameConstructor::CreateFloatingLetterFrame, (3) nsCSSFrameConstructor::ConstructFrame, (4) the child list and initial reflow, (5) GetLastSpecialSibling, (6) nsFrameManager::GetPrimaryFrameFor and MathML, (7) nsFrame::GetBoxAscent, (8) nsCSSFrameConstructor::AdjustParentFrame, (9) nsDOMOfflineResourceList, and (10) nsContentUtils::ComparePosition.

Weakness: CWE-399

Which versions are affected by CVE-2009-2462?

It affects 2 products.

Products include Mozilla Firefox, Mozilla Thunderbird.

How do I fix CVE-2009-2462?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2009-2462 being exploited?

There is no known exploitation of CVE-2009-2462 in the wild and no public exploit code.

Other vulnerabilities in Mozilla Firefox

• CVE-2019-11708 Mozilla Firefox and Thunderbird Sandbox Escape Exploited Critical 10.0
• CVE-2010-3765 Mozilla Multiple Products Remote Code Execution Exploited Critical 9.8
• CVE-2022-26486 Mozilla Firefox Use-After-Free Exploited Critical 9.6
• CVE-2022-26485 Mozilla Firefox Use-After-Free Exploited High 8.8
• CVE-2019-11707 Mozilla Firefox and Thunderbird Type Confusion Exploited High 8.8

All Mozilla Firefox vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-gphm-8f5h-pv33.