VulnerabilityModified
CVE-2019-20373
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.
HIGH 7.8EPSS 0.43%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.43% probability · 36th percentile
- CISA KEV
- Not listed
- Affected
- debian/debian linux · ltsp/ldm
- Source
- cve@mitre.org
References
- https://git.launchpad.net/~ltsp-upstream/ltsp/+git/ldm/commit/?id=c351ac69ef63ed6c84221cef73e409059661b8baPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/01/msg00007.htmlMailing List, Patch, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4601Third Party Advisory
- https://git.launchpad.net/~ltsp-upstream/ltsp/+git/ldm/commit/?id=c351ac69ef63ed6c84221cef73e409059661b8baPatch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/01/msg00007.htmlMailing List, Patch, Third Party Advisory
- https://www.debian.org/security/2020/dsa-4601Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.