Unrated severityNVD Advisory· Published Oct 20, 2011· Updated Apr 29, 2026
CVE-2011-1527
CVE-2011-1527
Description
The kdb_ldap plugin in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a kinit operation with incorrect string case for the realm, related to the is_principal_in_realm, krb5_set_error_message, krb5_ldap_get_principal, and process_as_req functions.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4cpe:2.3:a:mit:kerberos_5:1.9:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:mit:kerberos_5:1.9:*:*:*:*:*:*:*
- cpe:2.3:a:mit:kerberos_5:1.9.1:*:*:*:*:*:*:*
- (no CPE)range: 1.9 through 1.9.1
Patches
Vulnerability mechanics
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References
5- web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txtnvdVendor Advisory
- www.redhat.com/support/errata/RHSA-2011-1379.htmlnvdVendor Advisory
- www.kb.cert.org/vuls/id/659251nvdUS Government Resource
- bugs.debian.org/cgi-bin/bugreport.cginvd
- www.mandriva.com/security/advisoriesnvd
News mentions
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