CVE-2011-1527

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.

Category

7.8
CVSS
Severity: High
CVSS 2.0 •
EPSS 3.84% Top 15%
Vendor Advisory mandriva.com Vendor Advisory redhat.com Vendor Advisory mit.edu
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629558
http://www.mandriva.com/security/advisories?name=MDVSA-2011:159 vendor advisory
http://www.kb.cert.org/vuls/id/659251 third party advisory us government resource
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-006.txt vendor advisory
http://www.redhat.com/support/errata/RHSA-2011-1379.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2011-1527?
CVE-2011-1527 has been scored as a high severity vulnerability.
How to fix CVE-2011-1527?
To fix CVE-2011-1527, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-1527 being actively exploited in the wild?
It is possible that CVE-2011-1527 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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