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Fedora: 31 Krb5 FEDORA-2019-2323661E5F Moderate KDC Crash DoS Vulnerability

fedora
Calendar Grey September 27, 2019
Dist Fedora Esm H88
Resolves KDC instability within krb5 for Fedora. Tackling DoS vulnerabilities associated with unverified logging of PKINIT encryption types.
Fix KDC crash when logging PKINIT enctypes (CVE-2019-14844) This is a purely denial-of-service issue, though it is unauthenticated, and is unlikely to trigger by accident.

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 crash when logging PKINIT enctypes (CVE-2019-14844) This is a purely

denial-of-service issue, though it is unauthenticated, and is unlikely to

trigger by accident.

su -c 'dnf upgrade --advisory FEDORA-2019-2323661e5f' 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
important
Lowest
Low
Medium
High
Critical

Product: Fedora 31
Version: 1.17
Release: 45.fc31
Summary: The Kerberos network authentication system

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