USN-9068-1: Debian-LAN vulnerability

Publication date

12 November 2026

Overview

Debian-LAN could allow users to change the Kerberos passwords of other users.

Releases


Packages

Details

Wolfgang Schweer discovered that Debian-LAN configured overly permissive
ACLs for the Kerberos admin server. An authenticated user could possibly
use this issue to change the credentials of other users, leading to
privilege escalation.

Wolfgang Schweer discovered that Debian-LAN configured overly permissive
ACLs for the Kerberos admin server. An authenticated user could possibly
use this issue to change the credentials of other users, leading to
privilege escalation.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
16.04 LTS xenial debian-lan-config –  0.21ubuntu0.16.04.1~esm1

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