Xen Denial of Service Vulnerability (CVE-2015-0268)

Xen Denial of Service Vulnerability (CVE-2015-0268)

Release date:
Updated on:

Affected Systems:
XenSource Xen> = 4.5
Description:
Bugtraq id: 72591
CVE (CAN) ID: CVE-2015-0268

Xen is an open-source Virtual Machine monitor developed by the University of Cambridge.

When the client of a register in the virtual interrupt controller is written into Xen, the invalid value is considered as a serious error, resulting in host crash. By writing invalid values to the GICD. SGIR registry, the client can initiate a Denial-of-Service attack.

<* Source: Xen
*>

Suggestion:
Vendor patch:

XenSource
---------
The vendor has released a patch to fix this security problem. Please download it from the vendor's homepage.

Xsa117.patch Xen 4.5.x, xen-unstable

$ Sha256sum xsa117 *. patch
Release xsa117.patch
$

Http://xen.1045712.n5.nabble.com/Xen-Security-Advisory-117-CVE-2015-0268-arm-vgic-v2-GICD-SGIR-is-not-properly-emulated-td5726206.html

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