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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201611-09">
<title>Xen: Multiple vulnerabilities</title>
<synopsis>Multiple vulnerabilities have been found in Xen, the worst of which
allows gaining of privileges on the host system.
</synopsis>
<product type="ebuild">xen</product>
<announced>2016-11-15</announced>
<revised count="1">2016-11-15</revised>
<bug>588780</bug>
<bug>593198</bug>
<bug>594850</bug>
<access>remote</access>
<affected>
<package name="app-emulation/xen" auto="yes" arch="*">
<unaffected range="ge">4.6.3-r3</unaffected>
<vulnerable range="lt">4.6.3-r3</vulnerable>
</package>
<package name="app-emulation/xen-tools" auto="yes" arch="*">
<unaffected range="ge">4.6.3-r2</unaffected>
<vulnerable range="lt">4.6.3-r2</vulnerable>
</package>
</affected>
<background>
<p>Xen is a bare-metal hypervisor.</p>
</background>
<description>
<p>Multiple vulnerabilities have been discovered in Xen. Please review the
CVE identifiers referenced below for details.
</p>
</description>
<impact type="normal">
<p>A malicious guest administrator could escalate their privileges on the
host system or cause a Denial of Service. Additionally, a malicious
unprivileged guest user may be able to obtain or corrupt sensitive
information (including cryptographic material) in other programs in the
same guest.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All Xen users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=app-emulation/xen-4.6.3-r3"
</code>
<p>All Xen tools users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=app-emulation/xen-tools-4.6.3-r2
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-6258">CVE-2016-6258</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7092">CVE-2016-7092</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7093">CVE-2016-7093</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7094">CVE-2016-7094</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7777">CVE-2016-7777</uri>
</references>
<metadata tag="requester" timestamp="2016-09-10T06:59:48Z">
BlueKnight
</metadata>
<metadata tag="submitter" timestamp="2016-11-15T07:42:10Z">b-man</metadata>
</glsa>