CVE-2004-0541 Memory corruption in n/a

Critical 10.0 Published 10 Jun 2004 Updated 8 Aug 2024

Remote attackers can execute arbitrary code on Squid Web Proxy servers via a buffer overflow in NTLM authentication when handlers are enabled.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2004-0541?

CVE-2004-0541 is a critical memory corruption vulnerability in n/a, published on 10 Jun 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Buffer overflow in the ntlm_check_auth (NTLM authentication) function for Squid Web Proxy Cache 2.5.x and 3.x, when compiled with NTLM handlers enabled, allows remote attackers to execute arbitrary code via a long password ("pass" variable).

Which versions are affected by CVE-2004-0541?

It affects 1 product.

Linux distribution packages (8)

`squid` Red Hat:enterprise_linux:3::as	All versions	`7:2.5.STABLE3-6.3E`
`squid-debuginfo` Red Hat:enterprise_linux:3::as	All versions	`7:2.5.STABLE3-6.3E`
`squid` Red Hat:enterprise_linux:3::desktop	All versions	`7:2.5.STABLE3-6.3E`
`squid-debuginfo` Red Hat:enterprise_linux:3::desktop	All versions	`7:2.5.STABLE3-6.3E`
`squid` Red Hat:enterprise_linux:3::es	All versions	`7:2.5.STABLE3-6.3E`
`squid-debuginfo` Red Hat:enterprise_linux:3::es	All versions	`7:2.5.STABLE3-6.3E`
`squid` Red Hat:enterprise_linux:3::ws	All versions	`7:2.5.STABLE3-6.3E`
`squid-debuginfo` Red Hat:enterprise_linux:3::ws	All versions	`7:2.5.STABLE3-6.3E`

Products include National Science Foundation Squid Web Proxy Cache.

How do I fix CVE-2004-0541?

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-2004-0541 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2004-0541 exists.

Public exploit code: 1 Metasploit module and 2 Exploit-DB entries.

Sources

Also known as DEBIAN-CVE-2004-0541, GHSA-c92g-qcfc-4869, RHSA-2004:242.