CVE-2019-20373

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.

7.8

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.16%

Vendor Advisory debian.org

Affected: n/a n/a

References

Link	Tags
https://git.launchpad.net/~ltsp-upstream/ltsp/+git/ldm/commit/?id=c351ac69ef63ed6c84221cef73e409059661b8ba	third party advisory patch
https://www.debian.org/security/2020/dsa-4601	third party advisory vendor advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00007.html	patch mailing list third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-20373?: CVE-2019-20373 has been scored as a high severity vulnerability.
How to fix CVE-2019-20373?: To fix CVE-2019-20373, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-20373 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2019-20373 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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