CVE-2004-0751 Denial of service in n/a

What is CVE-2004-0751?

CVE-2004-0751 is a medium-severity denial of service vulnerability in Apache Http Server, published on 10 Sep 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The char_buffer_read function in the mod_ssl module for Apache 2.x, when using reverse proxying to an SSL server, allows remote attackers to cause a denial of service (segmentation fault).

Which versions are affected by CVE-2004-0751?

It affects 1 product.

Products include Apache Http Server.

How do I fix CVE-2004-0751?

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-2004-0751 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2004-0751 exists.

Public exploit code: 1 Exploit-DB entry.

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-2004-0751, GHSA-jw83-f5rc-8wmv.