Bug 1026152 (CVE-2013-6076)

Summary:	CVE-2013-6076 strongswan: denial of service when handling IKEv1 fragmentation payloads
Product:	[Other] Security Response	Reporter:	Murray McAllister <mmcallis>
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, jkurik, pfrields, psimerda, pwouters, vdanen
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-02-13 08:40:59 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:	1026154
Bug Blocks:	1026157

Description Murray McAllister 2013-11-04 04:41:40 UTC

A NULL pointer dereference flaw was discovered in strongSwan's IKE daemon, charon. An attacker could use this flaw to crash charon by sending a specially-crafted IKEv1 fragmentation payload.

strongSwan 5.1.1 corrects this flaw. A patch is provided for versions 5.0.2 and newer:

http://download.strongswan.org/security/CVE-2013-6076/strongswan-5.0.2-5.1.0_ikev1_fragment.patch

External References:

http://strongswan.org/blog/2013/11/01/strongswan-denial-of-service-vulnerability-(cve-2013-6076).html

Comment 1 Murray McAllister 2013-11-04 04:46:12 UTC

Created strongswan tracking bugs for this issue:

Affects: epel-6 [bug 1026154]

Comment 2 Murray McAllister 2013-11-04 04:48:36 UTC

Looks like this issue is already fixed in the packages for Fedora testing so I did not file a tracking bug.

http://koji.fedoraproject.org/koji/buildinfo?buildID=475229
http://koji.fedoraproject.org/koji/buildinfo?buildID=475223
http://koji.fedoraproject.org/koji/buildinfo?buildID=475220

Comment 3 Fedora Update System 2014-01-25 02:26:01 UTC

strongswan-5.1.1-4.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2014-01-25 02:26:59 UTC

strongswan-5.1.1-4.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2014-01-25 05:09:28 UTC

strongswan-5.1.1-4.el6 has been pushed to the Fedora EPEL 6 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Huzaifa S. Sidhpurwala 2014-02-13 08:40:59 UTC

Statement:

Not Vulnerable. This issue does not affect the version of openswan as shipped with Red Hat Enterprise Linux 5 and 6.