CVE-2011-1527

HIGH

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.

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558

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.redhat.com/support/errata/RHSA-2011-1379.html

Details

Source: MITRE

Published: 2011-10-20

Updated: 2020-01-21

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 7.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 10

Severity: HIGH