Public Date:
636335: CVE-2010-1322 krb5: KDC uninitialized pointer crash in authorization data handling (MITKRB5-SA-2010-006)

The MITRE CVE dictionary describes this issue as:

The merge_authdata function in kdc_authdata.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service (daemon crash), or possibly obtain sensitive information, spoof authorization, or execute arbitrary code, via a TGS request that triggers an uninitialized pointer dereference, as demonstrated by a request from a Windows Active Directory client.

Find out more about CVE-2010-1322 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue did not affect Red Hat Enterprise Linux 3, 4, or 5. It was addressed in Red Hat Enterprise Linux 6 via

CVSS v2 metrics

Base Score 6.5
Base Metrics AV:N/AC:L/Au:S/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (krb5) RHSA-2010:0863 2010-11-10

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 krb5 Not affected
Red Hat Enterprise Linux 4 krb5 Not affected
Red Hat Enterprise Linux 3 krb5 Not affected


Red Hat would like to thank the MIT Kerberos Team for reporting this issue. Upstream acknowledges Mike Roszkowski as the original reporter.


Last Modified

CVE description copyright © 2017, The MITRE Corporation