CVE-2017-15597 - Citrix XenServer Security Update

Description of Problem

A security vulnerability has been identified in Citrix XenServer that may allow a malicious administrator of a guest VM to compromise the host.

This vulnerability affects all currently supported versions of Citrix XenServer up to and including Citrix XenServer 7.2.

The following vulnerability has been addressed:

• CVE-2017-15597: pin count / page reference race in grant table code

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What Customers Should Do

Hotfixes have been released to address these issues. Citrix strongly recommends that affected customers install these hotfixes as soon as possible. The hotfixes can be downloaded from the following locations:

Citrix XenServer 7.2: CTX229067 – <https://support.citrix.com/article/CTX229067&gt;

Citrix XenServer 7.1 LTSR CU1: CTX229066 – <https://support.citrix.com/article/CTX229066&gt;

Citrix XenServer 7.1 LTSR: CTX229065 – <https://support.citrix.com/article/CTX229065&gt;

Citrix XenServer 7.0: CTX229064 – <https://support.citrix.com/article/CTX229064&gt;

Citrix XenServer 6.5 SP1: CTX229063 – <https://support.citrix.com/article/CTX229063&gt;

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What Citrix Is Doing

Citrix is notifying customers and channel partners about this potential security issue. This article is also available from the Citrix Knowledge Center at _ <http://support.citrix.com/&gt;_.

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Obtaining Support on This Issue

If you require technical assistance with this issue, please contact Citrix Technical Support. Contact details for Citrix Technical Support are available at _ <https://www.citrix.com/support/open-a-support-case.html&gt;_.

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Reporting Security Vulnerabilities

Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. For guidance on how to report security-related issues to Citrix, please see the following document: CTX081743 – Reporting Security Issues to Citrix

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Changelog

Date	Change
24th October 2017	Initial Publishing

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