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citrixCitrixCTX233832
HistoryMar 29, 2018 - 4:00 a.m.

Citrix XenServer 7.2 Multiple Security Updates

2018-03-2904:00:00
support.citrix.com
59

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

10 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

<section>
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<h2> Description of Problem</h2>

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<p>A number of security issues have been identified within Citrix XenServer 7.2 which could, if exploited, allow a malicious man-in-the-middle (MiTM) attacker on the management network to decrypt management traffic. Collectively, this has been rated as a medium severity vulnerability; the following issues have been remediated:</p>
<ul>
<li>CVE-2016-2107</li>
<li>CVE-2016-2108</li>
</ul>
</div>
</div>
</div>

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</div>
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<h2> Mitigating Factors</h2>

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<p>Customers who have configured their systems with an isolated management network in accordance with Citrix recommendations have already significantly mitigated these issues.</p>
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<hr />
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<h2> What Customers Should Do</h2>

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<p>A hotfix has been released to address these issues. Citrix recommends that affected customers install these hotfixes as soon as their patching schedule permits. The hotfix can be downloaded from the following location:</p>
<p> <br /> Citrix XenServer 7.2: CTX233880 - <a href=“https://support.citrix.com/article/CTX233880”>https://support.citrix.com/article/CTX233880</a></p>
</div>
</div>
</div>

<hr />
</div>
<div>

<h2> What Citrix Is Doing</h2>

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<p>Citrix is notifying customers and channel partners about this potential security issue. This article is also available from the Citrix Knowledge Center at <u> <a href=“http://support.citrix.com/”>http://support.citrix.com/</a></u>.</p>
</div>
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<h2> Obtaining Support on This Issue</h2>

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<p>If you require technical assistance with this issue, please contact Citrix Technical Support. Contact details for Citrix Technical Support are available at <u> <a href=“https://www.citrix.com/support/open-a-support-case.html”>https://www.citrix.com/support/open-a-support-case.html</a></u>. </p>
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<hr />
</div>
<div>

<h2> Reporting Security Vulnerabilities</h2>

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<p>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 – <a href=“http://support.citrix.com/article/CTX081743”>Reporting Security Issues to Citrix</a></p>
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</div>

<hr />
</div>
<div>

<h2> Changelog</h2>

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<div>
<div>
<table border=“1” width=“100%”>
<tbody>
<tr>
<td>Date </td>
<td>Change</td>
</tr>
<tr>
<td>29th March 2018</td>
<td>Initial Publication</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>

<hr />
</div>
</div></div>
</section>

CPENameOperatorVersion
citrix xenservereq7.2

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

10 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C