What’s Vulnerable › Vulnerabilities

CVE-2007-1216

• Severity: critical (CVSS 9.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 9.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2007-04-06 · updated 2026-06-16
• Weakness: CWE-415

Description

Double free vulnerability in the GSS-API library (lib/gssapi/krb5/k5unseal.c), as used by the Kerberos administration daemon (kadmind) in MIT krb5 before 1.6.1, when used with the authentication method provided by the RPCSEC_GSS RPC library, allows remote authenticated users to execute arbitrary code and modify the Kerberos key database via a message with an "an invalid direction encoding".

Affected products

• Canonical Ubuntu Linux: 5.10, 6.06, 6.10
• Debian Linux: 3.1, 4.0
• MIT Kerberos 5: before 1.6.1 — fixed in 1.6.1

How to fix

Upgrade to a fixed version: MIT Kerberos 5 1.6.1. Check the vendor advisory for mitigations.

References

• http://docs.info.apple.com/article.html?artnum=305391
• http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01056923
• http://lists.apple.com/archives/Security-announce/2007/Apr/msg00001.html
• http://lists.suse.com/archive/suse-security-announce/2007-Apr/0001.html
• http://secunia.com/advisories/24706
• http://secunia.com/advisories/24735
• http://secunia.com/advisories/24736
• http://secunia.com/advisories/24740
• http://secunia.com/advisories/24750
• http://secunia.com/advisories/24757
• http://secunia.com/advisories/24785

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