CVE-2011-1529

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-10-20 · updated 2026-06-16
Weakness: CWE-20

Description

The lookup_lockout_policy function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8 through 1.8.4 and 1.9 through 1.9.1, when the db2 (aka Berkeley DB) or LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via vectors that trigger certain process_as_req errors.

Affected products

MIT Kerberos 5: 1.8, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.9 (+1)

References

http://lists.opensuse.org/opensuse-security-announce/2011-10/msg00009.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt
http://www.kb.cert.org/vuls/id/659251
http://www.mandriva.com/security/advisories?name=MDVSA-2011:159
http://www.mandriva.com/security/advisories?name=MDVSA-2011:160
http://www.redhat.com/support/errata/RHSA-2011-1379.html
http://lists.opensuse.org/opensuse-security-announce/2011-10/msg00009.html
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt
http://www.kb.cert.org/vuls/id/659251
http://www.mandriva.com/security/advisories?name=MDVSA-2011:159
http://www.mandriva.com/security/advisories?name=MDVSA-2011:160
http://www.redhat.com/support/errata/RHSA-2011-1379.html

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