Xen Memory Corruption Vulnerability (CVE-2015-2151)

Xen Memory Corruption Vulnerability (CVE-2015-2151)

Release date:
Updated on:

Affected Systems:
XenSource Xen 3.2.x-4.5.x
Description:
Bugtraq id: 73015
CVE (CAN) ID: CVE-2015-2151

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

In Xen 3.2.x-4.5.x, The x86 simulator has a vulnerability. commands with register operands ignore the final segment overwrite, local client users can exploit this vulnerability to trigger pointer corruption, obtain sensitive information from other clients, cause host system denial of service, and execute arbitrary code. The x86 system is affected and the ARM system is not affected.

<* Source: Felix Wilhelm

Link: http://xenbits.xen.org/xsa/advisory-123.html
*>

Suggestion:
Vendor patch:

XenSource
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XenSource has released a Security Bulletin (advisory-123) and corresponding patches for this:
Advisory-123: Xen Security Advisory CVE-2015-2151/XSA-123
Link: http://xenbits.xen.org/xsa/advisory-123.html

Patch download:
Http://xenbits.xen.org/xsa/xsa123-4.3-4.2.patch

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