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Family: Fedora Local Security Checks --> Category: infos

Fedora Core 2 2004-277: krb5 Vulnerability Scan

Vulnerability Scan Summary
Check for the version of the krb5 package

Detailed Explanation for this Vulnerability Test

The remote host is missing the patch for the advisory FEDORA-2004-277 (krb5).

Kerberos V5 is a trusted-third-party network authentication system,
which can improve your network's security by eliminating the insecure
practice of cleartext passwords.

Update Information:

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

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 ( 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 does not affect Fedora Core.

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
( has assigned the name CVE-2004-0644 to this issue.

Solution :
Risk Factor : High

Click HERE for more information and discussions on this network vulnerability scan.


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