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Fedora 28: FEDORA-2019-ac7e19b0c8 Low: krb5 Authentication Issue

fedora
Calendar Grey January 11, 2019
Dist Fedora Esm H88
Tackling minor-risk krb5 security patch for Fedora, incorporating better practices and resolved login complications.
Improve memset hygiene in one location

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.

Improve memset hygiene in one location. ---- Fix low-severity CVE-2018-20217

(an authenticated user who can obtain a TGT using an older encryption type

(DES, DES3, or RC4) can cause an assertion failure in the KDC by sending an

S4U2Self request.)

* 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)

* Tue Oct 9 2018 Adam Williamson - 1.16.1-21

- Revert the patch from -20 for now as it seems to make FreeIPA worse

* Tue Oct 2 2018 Robbie Harwood - 1.16.1-20

- Fix bugs with concurrent use of MEMORY ccaches

* Wed Aug 1 2018 Robbie Harwood - 1.16.1-19

- In FIPS mode, add plaintext fallback for RC4 usages and taint

* Thu Jul 26 2018 Robbie Harwood - 1.16.1-18

- Fix k5test prompts for Python 3

* Thu Jul 19 2018 Robbie Harwood - 1.16.1-17

- Remove outdated note in krb5kdc man page

* Thu Jul 19 2018 Robbie Harwood - 1.16.1-16

- Make krb5kdc -p affect TCP ports

* Thu Jul 19 2018 Robbie Harwood - 1.16.1-15

- Eliminate preprocessor-disabled dead code

* Wed Jul 18 2018 Robbie Harwood - 1.16.1-14

- Fix some broken tests for Python 3

* Mon Jul 16 2018 Robbie Harwood - 1.16.1-13

- Zap copy of secret in RC4 string-to-key

* Thu Jul 12 2018 Robbie Harwood - 1.16.1-12

- Convert Python tests to Python 3

* Wed Jul 11 2018 Robbie Harwood - 1.16.1-11

- Add build dependency on gcc

* Tue Jul 10 2018 Robbie Harwood - 1.16.1-10

- Use SHA-256 instead of MD5 for audit ticket IDs

* Fri Jul 6 2018 Robbie Harwood - 1.16.1-9

- Add BuildRequires on python2 so we can run tests at build-time

* Fri Jul 6 2018 Robbie Harwood - 1.16.1-8

- Explicitly look for python2 in configure.in

* Thu Jun 14 2018 Robbie Harwood - 1.16.1-7

- Add flag to disable encrypted timestamp on client

* Thu Jun 14 2018 Robbie Harwood - 1.16.1-6

- Switch to python3-sphinx for docs

- Resolves: #1590928

* Thu Jun 14 2018 Robbie Harwood - 1.16.1-5

- Make docs build python3-compatible

- Resolves: #1590928

* Thu Jun 7 2018 Robbie Harwood - 1.16.1-4

- Update includedir processing to match upstream

* Fri Jun 1 2018 Robbie Harwood - 1.16.1-3

- Log when non-root ksu authorization fails

- Resolves: #1575771

* Fri May 4 2018 Robbie Harwood - 1.16.1-2

- Remove "-nodes" option from make-certs scripts

* Fri May 4 2018 Robbie Harwood - 1.16.1-1

- New upstream release - 1.16.1

* Thu May 3 2018 Robbie Harwood - 1.16-27

- Fix configuration of default ccache name to match file indentation

* Mon Apr 30 2018 Robbie Harwood - 1.16-26

- Set error message on KCM get_princ failure

* Mon Apr 30 2018 Robbie Harwood - 1.16-25

- Set error message on KCM get_princ failure

* Tue Apr 24 2018 Robbie Harwood - 1.16-24

- Fix KDC null dereference on large TGS replies

* Mon Apr 23 2018 Robbie Harwood - 1.16-23

- Explicitly use openssl rather than builtin crypto

- Resolves: #1570910

* Tue Apr 17 2018 Robbie Harwood - 1.16-22

- Merge duplicate subsections in profile library

su -c 'dnf upgrade --advisory FEDORA-2019-ac7e19b0c8' 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

Severity
low
Lowest
Low
Medium
High
Critical

Product: Fedora 28
Version: 1.16.1
Release: 24.fc28
Summary: The Kerberos network authentication system

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