Bug 1457121 (CVE-2017-9022)

Summary:	CVE-2017-9022 strongswan: Insufficient validation of RSA public keys passed to the gmp plugin
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	avagarwa, code, sspreitz
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	strongswan 5.5.3	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-07-05 14:48:23 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:	1457123, 1457124
Bug Blocks:	1457125

Description Andrej Nemec 2017-05-31 07:43:14 UTC

It was found that RSA public keys passed to the gmp plugin aren't validated sufficiently before attempting signature verification, so that invalid input might lead to a floating point exception and crash of the process. A certificate with an appropriately prepared public key sent by a peer could be used for a denial-of-service attack.

External References:

https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-(cve-2017-9022).html

Comment 1 Andrej Nemec 2017-05-31 07:45:27 UTC

Created strongswan tracking bugs for this issue:

Affects: epel-all [bug 1457123]
Affects: fedora-all [bug 1457124]

Comment 2 Stefan Cornelius 2017-07-05 14:48:32 UTC

Statement:

This issue did not affect the versions of strongimcv as shipped with Red Hat Enterprise Linux 7, as they did not include support for the gmp plugin.