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Fedora Core 2: FEDORA-2004-277 Critical: krb5 Double-Free Issues

fedora
Calendar Grey August 31, 2004
Dist Fedora Esm H88
The recent OpenSSL update for Ubuntu tackles serious buffer overflow vulnerabilities that could allow cybercriminals to exploit these flaws, leading to unauthorized access breaches
Several double-free bugs were found in the Kerberos 5 KDC andlibraries.

Summary

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 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 CAN-2004-0642 and CAN-2004-0643 to these issues.

A double-free bug was also found in the krb524 server (CAN-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 (cve.mitre.org) has assigned the name CAN-2004-0644 to this issue.

* Tue Aug 24 2004 Nalin Dahyabhai <nalin@redhat.com> 1.3.4-6

- rebuild

* Tue Aug 24 2004 Nalin Dahyabhai <nalin@redhat.com> 1.3.4-5

- incorporate revised fixes from ...

Read the Full Advisory

Change Log

References

Fedora Update Notification FEDORA-2004-277 2004-08-31
Product : Fedora Core 2 Name : krb5 Version : 1.3.4 Release : 6 Summary : The Kerberos network authentication system. Description : 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 Instructions

Severity
critical
Lowest
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Critical

Product: Fedora Core 2
Name: krb5
Version: 1.3.4
Release: 6
Summary: The Kerberos network authentication system.

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