Debian alert DLA-2771-1 (krb5)

From:
             
 
Adrian Bunk <bunk@debian.org>
To:
             
 
debian-lts-announce@lists.debian.org
Subject:
             
 
[SECURITY] [DLA 2771-1] krb5 security update
Date:
             
 
Thu, 30 Sep 2021 23:08:58 +0300
Message-ID:
             
 
<20210930200858.GA5071@localhost>
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Debian LTS Advisory DLA-2771-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                          Adrian Bunk
September 30, 2021                            https://wiki.debian.org/LTS
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Package        : krb5
Version        : 1.15-1+deb9u3
CVE ID         : CVE-2018-5729 CVE-2018-5730 CVE-2018-20217 CVE-2021-37750
Debian Bug     : 891869 917387 992607

Several vulnerabilities were fixed in MIT Kerberos,
a system for authenticating users and services on a network.

CVE-2018-5729
CVE-2018-5730

    Fix flaws in LDAP DN checking.

CVE-2018-20217

    Ignore password attributes for S4U2Self requests.

CVE-2021-37750

    Fix KDC null deref on TGS inner body null server.

For Debian 9 stretch, these problems have been fixed in version
1.15-1+deb9u3.

We recommend that you upgrade your krb5 packages.

For the detailed security status of krb5 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/krb5

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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