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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="201705-11">
<title>Xen: Multiple vulnerabilities</title>
<synopsis>Multiple vulnerabilities have been found in Xen, the worst of which
could allow for privilege escalation.
</synopsis>
<product type="ebuild">xen</product>
<announced>2017-05-26</announced>
<revised count="1">2017-05-26</revised>
<bug>615980</bug>
<access>local</access>
<affected>
<package name="app-emulation/xen" auto="yes" arch="*">
<unaffected range="ge">4.7.2-r1</unaffected>
<vulnerable range="lt">4.7.2-r1</vulnerable>
</package>
<package name="app-emulation/xen-tools" auto="yes" arch="*">
<unaffected range="ge">4.7.2</unaffected>
<vulnerable range="lt">4.7.2</vulnerable>
</package>
<package name="app-emulation/xen-pvgrub" auto="yes" arch="*">
<unaffected range="ge">4.7.2</unaffected>
<vulnerable range="lt">4.7.2</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 and Xen Security Advisory referenced below for details.
</p>
</description>
<impact type="normal">
<p>A local attacker could potentially execute arbitrary code with
privileges of Xen (QEMU) process on the host, gain privileges on the host
system, or cause a Denial of Service condition.
</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 ">=app-emulation/xen-4.7.2-r1:0"
</code>
<p>All Xen Tools users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/xen-tools-4.7.2:0"
</code>
<p>All Xen pvgrub users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose
">=app-emulation/xen-pvgrub-4.7.2:0"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-8903">CVE-2017-8903</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-8904">CVE-2017-8904</uri>
<uri link="https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-8905">CVE-2017-8905</uri>
</references>
<metadata tag="requester" timestamp="2017-05-11T07:53:09Z">BlueKnight</metadata>
<metadata tag="submitter" timestamp="2017-05-26T06:07:35Z">BlueKnight</metadata>
</glsa>
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