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Sicherheit: Denial of Service in krb5
Aktuelle Meldungen Distributionen
Name: Denial of Service in krb5
ID: FEDORA-2018-dc944aaa79
Distribution: Fedora
Plattformen: Fedora 29
Datum: So, 30. Dezember 2018, 12:03
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20217
Applikationen: krb5

Originalnachricht

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Fedora Update Notification
FEDORA-2018-dc944aaa79
2018-12-30 03:20:44.908254
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Name : krb5
Product : Fedora 29
Version : 1.16.1
Release : 23.fc29
URL : http://web.mit.edu/kerberos/www/
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 sending passwords over the network in unencrypted form.

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Update Information:

This update re-disables a patch which was added in -20, found to cause problems
for FreeIPA, and disabled in -21. The recent -22 update re-enabled that patch
(possibly unintentionally, as this is not mentioned in the changelog), and it
was immediately reported by
[two](https://bugzilla.redhat.com/show_bug.cgi?id=1633089#c50)
[testers](https://bugzilla.redhat.com/show_bug.cgi?id=1622760#c19) - and also by
openQA update tests - that FreeIPA was having problems again. So, it seems wise
to disable it once more.
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ChangeLog:

* Fri Dec 28 2018 Adam Williamson <awilliam@redhat.com> - 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 <rharwood@redhat.com> - 1.16.1-22
- Remove incorrect KDC assertion (CVE-2018-20217)
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2018-dc944aaa79' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

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/keys
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