CVE-2004-0809 Denial of service in n/a

What is CVE-2004-0809?

CVE-2004-0809 is a medium-severity denial of service vulnerability in Apache Http Server, published on 17 Sep 2004. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The mod_dav module in Apache 2.0.50 and earlier allows remote attackers to cause a denial of service (child process crash) via a certain sequence of LOCK requests for a location that allows WebDAV authoring access.

Which versions are affected by CVE-2004-0809?

It affects 12 products.

Products include Apache Http Server, Debian Debian Linux, Gentoo Linux, Hp Hp-Ux, Hp Secure Web Server for Tru64, Mandrakesoft Mandrake Linux and 6 more.

How do I fix CVE-2004-0809?

Upgrade to a fixed version.

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-2004-0809 being exploited?

There is no known exploitation of CVE-2004-0809 in the wild and no public exploit code.

Other vulnerabilities in Apache Http Server

• CVE-2021-42013 Apache HTTP Server Path Traversal Exploited Critical 9.8
• CVE-2024-38475 Apache HTTP Server Improper Escaping of Output Exploited Critical 9.1
• CVE-2021-40438 Apache HTTP Server-Side Request Forgery (SSRF) Exploited Critical 9.0
• CVE-2019-0211 Apache HTTP Server Privilege Escalation Exploited High 7.8
• CVE-2021-41773 Apache HTTP Server Path Traversal Exploited High 7.5

All Apache Http Server vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2004-0809, DSA-558-1, GHSA-ffrj-w536-5xrc.