What’s Vulnerable › Vulnerabilities

CVE-2004-0434

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2004-07-07 · updated 2026-06-16
• Weakness: CWE-131

Description

k5admind (kadmind) for Heimdal allows remote attackers to execute arbitrary code via a Kerberos 4 compatibility administration request whose framing length is less than 2, which leads to a heap-based buffer overflow.

Affected products

• Debian Linux: 3.0
• Heimdal Software Kerberos: before 0.6.2 — fixed in 0.6.2

How to fix

Upgrade to a fixed version: Heimdal Software Kerberos 0.6.2. Check the vendor advisory for mitigations.

References

• http://lists.grok.org.uk/pipermail/full-disclosure/2004-May/020998.html
• http://marc.info/?l=bugtraq&m=108386148126457&w=2
• http://security.gentoo.org/glsa/glsa-200405-23.xml
• http://www.debian.org/security/2004/dsa-504
• https://exchange.xforce.ibmcloud.com/vulnerabilities/16071
• http://lists.grok.org.uk/pipermail/full-disclosure/2004-May/020998.html
• http://marc.info/?l=bugtraq&m=108386148126457&w=2
• http://security.gentoo.org/glsa/glsa-200405-23.xml
• http://www.debian.org/security/2004/dsa-504
• https://exchange.xforce.ibmcloud.com/vulnerabilities/16071

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