Debian Security Advisory

DLA-2437-1 krb5 -- LTS security update

Date Reported:

07 Nov 2020

Affected Packages:

krb5

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2020-28196.

More information:

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.

CVE-2020-28196

For Debian 9 Stretch, these problems have been fixed in version 1.15-1+deb9u2.

We recommend that you upgrade your krb5 packages.

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