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Fedora 33: 2021-2bae525fd3 Critical: krb5 Denial-of-Service Fix

fedora
Calendar Grey July 20, 2021
Dist Fedora Esm H88
Important patch for Fedora 33 addresses KDC null pointer dereference problem, improving security for network authentication processes.
- Fix KDC null deref on bad encrypted challenge - CVE-2021-36222 - Denial- of-service only - (f34 only): pull-up to rawhide

Summary

Kerberos V5 is a trusted-third-party network authentication system,

which can improve your network's security by eliminating the insecure

practice of sending passwords over the network in unencrypted form.

- Fix KDC null deref on bad encrypted challenge - CVE-2021-36222 - Denial-of-service only - (f34 only): pull-up to rawhide

* Mon Jul 12 2021 Robbie Harwood - 1.18.2-30

- Fix KDC null deref on bad encrypted challenge (CVE-2021-36222)

su -c 'dnf upgrade --advisory FEDORA-2021-2bae525fd3' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

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Change Log

References

Update Instructions

Severity
critical
Lowest
Low
Medium
High
Critical

Product: Fedora 33
Version: 1.18.2
Release: 30.fc33
Summary: The Kerberos network authentication system

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