Bug 2176444 (CVE-2023-26463)

Summary:	CVE-2023-26463 strongswan: Authentication bypass in certificate verification in TLS-based EAP methods
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	strongswan 5.9.10	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-03-08 16:24:52 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:	2176445, 2176446
Bug Blocks:

Description Pedro Sampaio 2023-03-08 12:28:08 UTC

strongSwan Vulnerability (CVE-2023-26463)

A vulnerability related to certificate verification in TLS-based EAP methods was discovered in strongSwan that results in a denial of service but possibly even remote code execution. Versions 5.9.8 and 5.9.9 may be affected.

A user publicly reported a bug related certificate verification in TLS-based EAP methods that leads to an authentication bypass followed by an expired pointer dereference that results in a denial of service but possibly even remote code execution.

Fixed by 5.9.10 release:
https://www.strongswan.org/blog/2023/03/02/strongswan-5.9.10-released.html

Comment 1 Pedro Sampaio 2023-03-08 12:28:27 UTC

Created strongswan tracking bugs for this issue:

Affects: epel-all [bug 2176446]
Affects: fedora-all [bug 2176445]

Comment 2 Product Security DevOps Team 2023-03-08 16:24:50 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.