CVE-2004-0940 Memory corruption in n/a

What is CVE-2004-0940?

CVE-2004-0940 is a high-severity memory corruption vulnerability in Apache Http Server, published on 26 Oct 2004. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Buffer overflow in the get_tag function in mod_include for Apache 1.3.x to 1.3.32 allows local users who can create SSI documents to execute arbitrary code as the apache user via SSI (XSSI) documents that trigger a length calculation error.

Weakness: CWE-131

Which versions are affected by CVE-2004-0940?

It affects 6 products.

Products include Apache Http Server, Hp Hp-Ux, Openpkg Openpkg, Slackware Slackware Linux, Suse Suse Linux, Trustix Secure Linux.

How do I fix CVE-2004-0940?

Apply the vendor's patch.

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

Is CVE-2004-0940 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2004-0940 exists.

Public exploit code: 2 Exploit-DB entries.

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 DSA-594-1, GHSA-cx2h-jfxr-vw9c.