Bug 2291219 (CVE-2024-5138)

Summary:	CVE-2024-5138 snapd: Privilege escalation may lead to a Denial of Service
Product:	[Other] Security Response	Reporter:	Marco Benatto <mbenatto>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
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Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:	2291220, 2291221
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Description Marco Benatto 2024-06-10 20:54:20 UTC

The snapctl component within snapd allows a confined snap to interact with the snapd daemon to take certain privileged actions on behalf of the snap. It was found that snapctl did not properly parse command-line arguments, allowing an unprivileged user to trigger an authorized action on behalf of the snap that would normally require administrator privileges to perform. This could possibly allow an unprivileged user to perform a denial of service or similar.

https://bugs.launchpad.net/snapd/+bug/2065077
https://github.com/snapcore/snapd/commit/68ee9c6aa916ab87dbfd9a26030690f2cabf1e14
https://github.com/snapcore/snapd/security/advisories/GHSA-p9v8-q5m4-pf46
https://www.cve.org/CVERecord?id=CVE-2024-5138

Comment 1 Marco Benatto 2024-06-10 20:54:36 UTC

Created snapd tracking bugs for this issue:

Affects: epel-all [bug 2291220]
Affects: fedora-all [bug 2291221]