CVE-2009-0071 Null dereference in n/a

What is CVE-2009-0071?

CVE-2009-0071 is a low-severity vulnerability in Mozilla Firefox, published on 8 Jan 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 3.0.5 and earlier 3.0.x versions, when designMode is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a certain (a) replaceChild or (b) removeChild call, followed by a (1) queryCommandValue, (2) queryCommandState, or (3) queryCommandIndeterm call. NOTE: it was later reported that 3.0.6 and 3.0.7 are also affected.

Weakness: CWE-399

Which versions are affected by CVE-2009-0071?

It affects 1 product.

Products include Mozilla Firefox.

How do I fix CVE-2009-0071?

No fix has been published for CVE-2009-0071 yet. Limit exposure of the affected software until one is available.

Is CVE-2009-0071 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-0071 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-ffhj-vphp-4358.