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CVE Database

CVE-2013-1416

Impact: Moderate
Public: 2013-03-29
Bugzilla: 949984: CVE-2013-1416 krb5: NULL pointer dereference (DoS, KDC crash) by processing certain TGS requests
IAVA: 2013-B-0044

Details

The MITRE CVE dictionary describes this issue as:

The prep_reprocess_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.10.5 does not properly perform service-principal realm referral, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS-REQ request.

Find out more about CVE-2013-1416 from the MITRE CVE dictionary and NIST NVD.

Statement

This issue did not affect the versions of krb5 as shipped with Red Hat Enterprise Linux 4 and 5.

CVSS v2 metrics

Base Score: 4.0
Base Metrics: AV:N/AC:L/Au:S/C:N/I:N/A:P
Access Vector: Network
Access Complexity: Low
Authentication: Single Instance
Confidentiality Impact: None
Integrity Impact: None
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 version 6 (krb5) RHSA-2013:0748 April 16, 2013

External References

This page is generated automatically and has not been checked for errors or omissions.

For clarification or corrections please contact the Red Hat Security Response Team.