Vulnerability identifier: #VU42405

Vulnerability risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:A/AC:L/PR:/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-4416

CWE-ID: CWE-119

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Xen
Server applications / Virtualization software

Vendor: Xen Project

Description

The vulnerability allows a remote #AU# to perform a denial of service (DoS) attack.

The Ocaml xenstored implementation (oxenstored) in Xen 4.1.x, 4.2.x, and 4.3.x allows local guest domains to cause a denial of service (domain shutdown) via a large message reply.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Xen: 4.1.0 - 4.3.1

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External links
http://lists.opensuse.org/opensuse-updates/2013-11/msg00009.html
http://lists.opensuse.org/opensuse-updates/2013-12/msg00059.html
http://osvdb.org/99072
http://security.gentoo.org/glsa/glsa-201407-03.xml
http://www.openwall.com/lists/oss-security/2013/10/29/5
http://www.securityfocus.com/bid/63404
http://www.securitytracker.com/id/1029264

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.