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[SECURITY] [DLA 2437-1] krb5 security update



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Debian LTS Advisory DLA-2437-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                           Chris Lamb
November 07, 2020                             https://wiki.debian.org/LTS
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Package        : krb5
Version        : 1.15-1+deb9u2
CVE ID         : CVE-2020-28196
Debian Bug     : #973880

It was discovered that there was a denial of service vulnerability in
the MIT Kerberos network authentication system, krb5. The lack of a
limit in the ASN.1 decoder could lead to infinite recursion and allow
an attacker to overrun the stack and cause the process to crash.

For Debian 9 "Stretch", this problem has been fixed in version
1.15-1+deb9u2.

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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