ldm vulnerabilities

A security issue affects these releases of Ubuntu and its
derivatives:

* Ubuntu 20.04 LTS

Summary

LTSP Display Manager could be made to escalate user privileges.

Software Description

* ldm - LTSP display manager

Details

Veeti Vetel**inen discovered that the LTSP Display Manager (ldm)
incorrectly handled user logins from unsupported shells. A local
attacker could possibly use this issue to gain root privileges.
(CVE-2019-20373)

Update instructions

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

Ubuntu 20.04 LTS
ldm - 2:2.18.06-1+deb10u1build0.20.04.1
ldm-server - 2:2.18.06-1+deb10u1build0.20.04.1

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

* LP: 1839431

--- Mystic BBS v1.12 A46 (Linux/64)
* Origin: BZ&BZ BBS (21:4/110)