Bug 1882315 (CVE-2019-20373)

Summary:	CVE-2019-20373 ldm: incorrectly handled user logins from unsupported shells
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	enslaver, extras-orphan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2020-09-24 14:41:41 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1882316
Bug Blocks:

Description Dhananjay Arunesh 2020-09-24 10:14:34 UTC

LTSP Display Manager (ldm) incorrectly handled user logins from unsupported shells. A local attacker could possibly use this issue to gain root privileges.

References:
https://launchpad.net/ubuntu/+source/ldm/2:2.18.06-1+deb10u1build0.20.04.1

Comment 1 Dhananjay Arunesh 2020-09-24 10:15:11 UTC

Created ldm tracking bugs for this issue:

Affects: epel-6 [bug 1882316]

Comment 2 Product Security DevOps Team 2020-09-24 14:41:41 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.