Bug 1965512 (CVE-2021-32635)

Summary:	CVE-2021-32635 singularity: Action commands against library URIs ignore configured remote endpoint
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bbockelm, dave.love, dwd
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-05-27 23:32:48 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1965066, 1965513, 1965514
Bug Blocks:

Description Pedro Sampaio 2021-05-27 20:24:37 UTC

In singularity 3.7.2 and 3.7.3, action commands against library:// URIs erroneously always used the default remote endpoint (cloud.sylabs.io). An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container.

Comment 1 Pedro Sampaio 2021-05-27 20:25:06 UTC

Created singularity tracking bugs for this issue:

Affects: epel-all [bug 1965514]
Affects: fedora-all [bug 1965513]

Comment 2 Product Security DevOps Team 2021-05-27 23:32:48 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.