<?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>November 15, 2016</announced> <revised>November 15, 2016: 1</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 ">=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 ">=app-emulation/xen-tools-4.6.3-r2 </code> </resolution> <references> <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-6258">CVE-2016-6258</uri> <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7092">CVE-2016-7092</uri> <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7093">CVE-2016-7093</uri> <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7094">CVE-2016-7094</uri> <uri link="http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-7777">CVE-2016-7777</uri> </references> <metadata tag="requester" timestamp="Sat, 10 Sep 2016 06:59:48 +0000"> BlueKnight </metadata> <metadata tag="submitter" timestamp="Tue, 15 Nov 2016 07:42:10 +0000">b-man</metadata> </glsa>