CVE-2011-1527

high
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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

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

Tenable Plugins

View all (9 total)

IDNameProductFamilySeverity
69574Amazon Linux AMI : krb5 (ALAS-2011-15)NessusAmazon Linux Local Security Checks
high
68372Oracle Linux 6 : krb5 (ELSA-2011-1379)NessusOracle Linux Local Security Checks
high
61933Mandriva Linux Security Advisory : krb5 (MDVSA-2011:159)NessusMandriva Local Security Checks
high
61157Scientific Linux Security Update : krb5 on SL6.x i386/x86_64NessusScientific Linux Local Security Checks
high
57655GLSA-201201-13 : MIT Kerberos 5: Multiple vulnerabilitiesNessusGentoo Local Security Checks
medium
56852Fedora 15 : krb5-1.9.1-14.fc15 (2011-14673)NessusFedora Local Security Checks
high
56851Fedora 14 : krb5-1.8.4-3.fc14 (2011-14650)NessusFedora Local Security Checks
high
56556Ubuntu 10.04 LTS / 10.10 / 11.04 / 11.10 : krb5 vulnerabilities (USN-1233-1)NessusUbuntu Local Security Checks
high
56552RHEL 6 : krb5 (RHSA-2011:1379)NessusRed Hat Local Security Checks
high