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Fedora 29: FEDORA-2019-dc4e1d0fb6 Moderate: KDC Crash Fix

fedora
Calendar Grey October 10, 2019
Dist Fedora Esm H88
Identify and troubleshoot KDC instability issues in Kerberos (krb5) on Fedora 29 to bolster cybersecurity protocols.
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.

* Wed Sep 25 2019 Robbie Harwood - 1.16.1-26

- Fix KDC crash when logging PKINIT enctypes (CVE-2019-14844)

* Thu Jan 17 2019 Robbie Harwood - 1.16.1-25

- enctype logging and explicit_bzero()

* Fri Jan 4 2019 Robbie Harwood - 1.16.1-24

- Address some optimized-out memset() calls

* Fri Dec 28 2018 Adam Williamson - 1.16.1-23

- Disable patch from -20 again (rharwood re-enabled it in -22, and

it immediately broke FreeIPA again)

* Thu Dec 20 2018 Robbie Harwood - 1.16.1-22

- Remove incorrect KDC assertion (CVE-2018-20217)

su -c 'dnf upgrade --advisory FEDORA-2019-dc4e1d0fb6' at the command

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

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

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Change Log

References

Update Instructions

Product: Fedora 29
Version: 1.16.1
Release: 26.fc29
Summary: The Kerberos network authentication system

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