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Home >> Browse Vulnerability Assessment Database >> Red Hat Local Security Checks >> RHSA-2004-448: krb


Vulnerability Assessment Details

RHSA-2004-448: krb

Vulnerability Assessment Summary
Check for the version of the krb packages

Detailed Explanation for this Vulnerability Assessment


Updated Kerberos (krb5) packages that correct double-free and ASN.1
parsing bugs are now available for Red Hat Enterprise Linux.

Kerberos is a networked authentication system that uses a trusted third
party (a KDC) to authenticate clients and servers to each other.

Several double-free bugs were found in the Kerberos 5 KDC and libraries. A
remote attacker could potentially exploit these flaws to execute arbitrary
code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the names CVE-2004-0642 and CVE-2004-0643 to these issues.

A double-free bug was also found in the krb524 server (CVE-2004-0772),
however this issue was fixed for Red Hat Enterprise Linux 2.1 users by a
previous erratum, RHSA-2003:052.

An infinite loop bug was found in the Kerberos 5 ASN.1 decoder library. A
remote attacker may be able to trigger this flaw and cause a denial of
service. The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CVE-2004-0644 to this issue.

All users of krb5 should upgrade to these updated packages, which contain
backported security patches to resolve these issues.




Solution : http://rhn.redhat.com/errata/RHSA-2004-448.html
Network Security Threat Level: High

Networks Security ID:

Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security

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