Test ID:	1.3.6.1.4.1.25623.1.0.890964
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DLA-964-1)
Summary:	The remote host is missing an update for the Debian 'xen' package(s) announced via the DLA-964-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'xen' package(s) announced via the DLA-964-1 advisory. Vulnerability Insight: Multiple vulnerabilities have been discovered in the Xen hypervisor. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2016-9932 (XSA-200) CMPXCHG8B emulation allows local HVM guest OS users to obtain sensitive information from host stack memory. CVE-2017-7995 Description Xen checks access permissions to MMIO ranges only after accessing them, allowing host PCI device space memory reads. CVE-2017-8903 (XSA-213) Xen mishandles page tables after an IRET hypercall which can lead to arbitrary code execution on the host OS. The vulnerability is only exposed to 64-bit PV guests. CVE-2017-8904 (XSA-214) Xen mishandles the contains segment descriptors property during GNTTABOP_transfer. This might allow PV guest OS users to execute arbitrary code on the host OS. CVE-2017-8905 (XSA-215) Xen mishandles a failsafe callback which might allow PV guest OS users to execute arbitrary code on the host OS. For Debian 7 Wheezy, these problems have been fixed in version 4.1.6.lts1-8. We recommend that you upgrade your xen packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references] Affected Software/OS: 'xen' package(s) on Debian 7. Solution: Please install the updated package(s). CVSS Score: 7.2 CVSS Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2016-9932 BugTraq ID: 94863 http://www.securityfocus.com/bid/94863 Debian Security Information: DSA-3847 (Google Search) http://www.debian.org/security/2017/dsa-3847 https://security.gentoo.org/glsa/201612-56 http://www.securitytracker.com/id/1037468 Common Vulnerability Exposure (CVE) ID: CVE-2017-7995 BugTraq ID: 98314 http://www.securityfocus.com/bid/98314 Common Vulnerability Exposure (CVE) ID: CVE-2017-8903 BugTraq ID: 98426 http://www.securityfocus.com/bid/98426 https://security.gentoo.org/glsa/201705-11 http://www.securitytracker.com/id/1038386 Common Vulnerability Exposure (CVE) ID: CVE-2017-8904 BugTraq ID: 98428 http://www.securityfocus.com/bid/98428 http://www.securitytracker.com/id/1038387 Common Vulnerability Exposure (CVE) ID: CVE-2017-8905 BugTraq ID: 98436 http://www.securityfocus.com/bid/98436 http://www.securitytracker.com/id/1038388
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