Bug 2226582 (CVE-2023-38496)

Summary:	CVE-2023-38496 apptainer: Ineffective privileges drop when requesting container network
Product:	[Other] Security Response	Reporter:	Sandipan Roy <saroy>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
Target Milestone:	---
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:	2023-08-01 13:13:55 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2224098, 2226583, 2226584
Bug Blocks:

Description Sandipan Roy 2023-07-26 03:31:55 UTC

Apptainer is an open source container platform. Version 1.2.0-rc.2 introduced an ineffective privilege drop when requesting container network setup, therefore subsequent functions are called with root privileges, the attack surface is rather limited for users but an attacker could possibly craft a starter config to delete any directory on the host filesystems. A security fix has been included in Apptainer 1.2.1. There is no known workaround outside of upgrading to Apptainer 1.2.1.

https://github.com/apptainer/apptainer/security/advisories/GHSA-mmx5-32m4-wxvx
https://github.com/apptainer/apptainer/pull/1523
https://github.com/apptainer/apptainer/pull/1578

Comment 1 Sandipan Roy 2023-07-26 03:32:11 UTC

Created apptainer tracking bugs for this issue:

Affects: epel-all [bug 2226583]
Affects: fedora-all [bug 2226584]

Comment 2 Product Security DevOps Team 2023-08-01 13:13:54 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.