Bug 1547510 (CVE-2018-6459)

Summary:	CVE-2018-6459 strongswan: Insufficient Input Validation in RSASSA-PSS Signature Parser
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	avagarwa, code, pwouters, sspreitz
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	strongswan 5.6.2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-05-24 04:05:00 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:	1547537, 1547538
Bug Blocks:

Description Andrej Nemec 2018-02-21 13:12:57 UTC

The rsa_pss_params_parse function in libstrongswan/credentials/keys/signature_params.c in strongSwan 5.6.1 allows remote attackers to cause a denial of service via a crafted RSASSA-PSS signature that lacks a mask generation function parameter.

External References:

https://www.strongswan.org/blog/2018/02/19/strongswan-vulnerability-%28cve-2018-6459%29.html

Comment 1 Andrej Nemec 2018-02-21 14:05:39 UTC

Created strongswan tracking bugs for this issue:

Affects: epel-all [bug 1547538]
Affects: fedora-all [bug 1547537]

Comment 2 Paul Wouters 2018-05-24 04:05:00 UTC

wasfixed in 5.6.2