CVE-2004-0451 Code injection in n/a

What is CVE-2004-0451?

CVE-2004-0451 is a critical code injection vulnerability in Debian Debian Linux, published on 30 Jun 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Multiple format string vulnerabilities in the (1) logquit, (2) logerr, or (3) loginfo functions in Software Upgrade Protocol (SUP) allows remote attackers to execute arbitrary code via format string specifiers in messages that are logged by syslog.

Which versions are affected by CVE-2004-0451?

It affects 2 products.

Products include Debian Debian Linux, Sup Sup.

How do I fix CVE-2004-0451?

Apply the vendor's patch.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2004-0451 being exploited?

There is no known exploitation of CVE-2004-0451 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

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• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2004-0451, DSA-521, GHSA-6h6g-p926-x7hr.