Public Date:
664009: CVE-2010-4022 krb5: kpropd unexpected termination on invalid input (MITKRB5-SA-2011-001)

The MITRE CVE dictionary describes this issue as:

The do_standalone function in the MIT krb5 KDC database propagation daemon (kpropd) in Kerberos 1.7, 1.8, and 1.9, when running in standalone mode, does not properly handle when a worker child process "exits abnormally," which allows remote attackers to cause a denial of service (listening process termination, no new connections, and lack of updates in slave KVC) via unspecified vectors.

Find out more about CVE-2010-4022 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue did not affect the versions of krb5 as shipped with Red Hat Enterprise Linux 4 or 5 as the flaw was introduced in a later version of MIT krb5 (1.7).

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 5
Base Metrics AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
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-2011:0200 2011-02-08

Affected Packages State

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