CVE-2019-20373

Published: Jan 9, 2020Modified: Jun 17, 2026

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

LTSP LDM through 2.18.06 allows fat-client root access because the LDM_USERNAME variable may have an empty value if the user's shell lacks support for Bourne shell syntax. This is related to a run-x-session script.

Affected (4)

Products: Debian: Debian Linux · Ltsp: Ldm

1 product

1 product

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0
Debian Debian Linux	Version 8.0
Debian Debian Linux	Version 9.0

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Ltsp Ldm	Up to 2.18.06

References (6)

https://git.launchpad.net/~ltsp-upstream/ltsp/+git/ldm/commit/?id=c351ac69ef63ed6c84221cef73e409059661b8ba

Source: cve@mitre.org

PatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2020/01/msg00007.html

Source: cve@mitre.org

Mailing ListPatchThird Party Advisory

https://www.debian.org/security/2020/dsa-4601

Source: cve@mitre.org

Third Party Advisory

https://git.launchpad.net/~ltsp-upstream/ltsp/+git/ldm/commit/?id=c351ac69ef63ed6c84221cef73e409059661b8ba

Source: af854a3a-2127-422b-91ae-364da2661108

PatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2020/01/msg00007.html

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListPatchThird Party Advisory

https://www.debian.org/security/2020/dsa-4601

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

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