CVE-2011-1527

Current 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.

Basic Data

PublishedOctober 20, 2011
Last ModifiedJanuary 21, 2020
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeCWE-20
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactNONE
CVSS 2 - Availability ImpactCOMPLETE
CVSS 2 - Base Score7.8
SeverityHIGH
Exploitability Score10.0
Impact Score6.9
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationMitKerberos 51.9*******
    2.3ApplicationMitKerberos 51.9.1*******

Vulnerable Software List

VendorProductVersions
Mit Kerberos 5 1.9, 1.9.1

References

NameSourceURLTags
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558CONFIRM
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txthttp://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txtCONFIRMVendor Advisory
VU#659251http://www.kb.cert.org/vuls/id/659251CERT-VNUS Government Resource
MDVSA-2011:159http://www.mandriva.com/security/advisories?name=MDVSA-2011:159MANDRIVA
RHSA-2011:1379http://www.redhat.com/support/errata/RHSA-2011-1379.htmlREDHATVendor Advisory