CVE-2007-0957

Severity: critical (CVSS 9.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 10.3% 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-787

Description

Stack-based buffer overflow in the krb5_klog_syslog function in the kadm5 library, as used by the Kerberos administration daemon (kadmind) and Key Distribution Center (KDC), in MIT krb5 before 1.6.1 allows remote authenticated users to execute arbitrary code and modify the Kerberos key database via crafted arguments, possibly involving certain format string specifiers.

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://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
http://secunia.com/advisories/24786

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