CVE-2009-2479 Denial of service in n/a

What is CVE-2009-2479?

CVE-2009-2479 is a high-severity denial of service vulnerability in Mozilla Firefox, published on 16 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

Mozilla Firefox 3.0.x, 3.5, and 3.5.1 on Windows allows remote attackers to cause a denial of service (uncaught exception and application crash) via a long Unicode string argument to the write method. NOTE: this was originally reported as a stack-based buffer overflow. NOTE: on Linux and Mac OS X, a crash resulting from this long string reportedly occurs in an operating-system library, not in Firefox.

Weakness: CWE-119

Which versions are affected by CVE-2009-2479?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2009-2479?

No fix has been published for CVE-2009-2479 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2009-2479 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-2479 exists.

Public exploit code: 1 Exploit-DB entry.

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-7mgv-jg63-hvqh.