CVEvulnerability
CVE-2011-1527
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2011-10-20
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-20
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.
Affected configurations
• mit kerberos 5 1.9
• mit kerberos 5 1.9.1
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558 bugs.debian.org
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt Vendor Advisory
- http://www.kb.cert.org/vuls/id/659251 US Government Resource
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:159 www.mandriva.com
- http://www.redhat.com/support/errata/RHSA-2011-1379.html Vendor Advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558 bugs.debian.org
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt Vendor Advisory
- http://www.kb.cert.org/vuls/id/659251 US Government Resource
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:159 www.mandriva.com
- http://www.redhat.com/support/errata/RHSA-2011-1379.html Vendor Advisory