CVE-2011-1527
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.8 HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 3.65% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- mit/kerberos 5
- Source
- cve@mitre.org
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txtVendor Advisory
- http://www.kb.cert.org/vuls/id/659251US Government Resource
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:159
- http://www.redhat.com/support/errata/RHSA-2011-1379.htmlVendor Advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txtVendor Advisory
- http://www.kb.cert.org/vuls/id/659251US Government Resource
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:159
- http://www.redhat.com/support/errata/RHSA-2011-1379.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.