Vulnerability identifier: #VU41361

Vulnerability risk: Low

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

CVE-ID: CVE-2014-5147

CWE-ID: CWE-264

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.

Xen 4.4.x, when running a 64-bit kernel on an ARM system, does not properly handle traps from the guest domain that use a different address width, which allows local guest users to cause a denial of service (host crash) via a crafted 32-bit process.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0

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External links
http://www.securitytracker.com/id/1030724
http://xenbits.xen.org/xsa/advisory-102.html

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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.