Test ID:	1.3.6.1.4.1.25623.1.0.703969
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DSA-3969-1)
Summary:	The remote host is missing an update for the Debian 'xen' package(s) announced via the DSA-3969-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'xen' package(s) announced via the DSA-3969-1 advisory. Vulnerability Insight: Multiple vulnerabilities have been discovered in the Xen hypervisor: CVE-2017-10912 Jann Horn discovered that incorrectly handling of page transfers might result in privilege escalation. CVE-2017-10913 / CVE-2017-10914 Jann Horn discovered that race conditions in grant handling might result in information leaks or privilege escalation. CVE-2017-10915 Andrew Cooper discovered that incorrect reference counting with shadow paging might result in privilege escalation. CVE-2017-10916 Andrew Cooper discovered an information leak in the handling of the Memory Protection Extensions (MPX) and Protection Key (PKU) CPU features. This only affects Debian stretch. CVE-2017-10917 Ankur Arora discovered a NULL pointer dereference in event polling, resulting in denial of service. CVE-2017-10918 Julien Grall discovered that incorrect error handling in physical-to-machine memory mappings may result in privilege escalation, denial of service or an information leak. CVE-2017-10919 Julien Grall discovered that incorrect handling of virtual interrupt injection on ARM systems may result in denial of service. CVE-2017-10920 / CVE-2017-10921 / CVE-2017-10922 Jan Beulich discovered multiple places where reference counting on grant table operations was incorrect, resulting in potential privilege escalation. CVE-2017-12135 Jan Beulich found multiple problems in the handling of transitive grants which could result in denial of service and potentially privilege escalation. CVE-2017-12136 Ian Jackson discovered that race conditions in the allocator for grant mappings may result in denial of service or privilege escalation. This only affects Debian stretch. CVE-2017-12137 Andrew Cooper discovered that incorrect validation of grants may result in privilege escalation. CVE-2017-12855 Jan Beulich discovered that incorrect grant status handling, thus incorrectly informing the guest that the grant is no longer in use. XSA-235 (no CVE yet) Wei Liu discovered that incorrect locking of add-to-physmap operations on ARM may result in denial of service. For the oldstable distribution (jessie), these problems have been fixed in version 4.4.1-9+deb8u10. For the stable distribution (stretch), these problems have been fixed in version 4.8.1-1+deb9u3. We recommend that you upgrade your xen packages. Affected Software/OS: 'xen' package(s) on Debian 8, Debian 9. Solution: Please install the updated package(s). CVSS Score: 10.0 CVSS Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2017-10912 BugTraq ID: 99158 http://www.securityfocus.com/bid/99158 Debian Security Information: DSA-3969 (Google Search) http://www.debian.org/security/2017/dsa-3969 https://security.gentoo.org/glsa/201708-03 https://security.gentoo.org/glsa/201710-17 http://www.securitytracker.com/id/1038721 Common Vulnerability Exposure (CVE) ID: CVE-2017-10913 BugTraq ID: 99411 http://www.securityfocus.com/bid/99411 http://www.securitytracker.com/id/1038722 Common Vulnerability Exposure (CVE) ID: CVE-2017-10914 Common Vulnerability Exposure (CVE) ID: CVE-2017-10915 BugTraq ID: 99174 http://www.securityfocus.com/bid/99174 Common Vulnerability Exposure (CVE) ID: CVE-2017-10917 BugTraq ID: 99157 http://www.securityfocus.com/bid/99157 http://www.securitytracker.com/id/1038731 Common Vulnerability Exposure (CVE) ID: CVE-2017-10918 BugTraq ID: 99161 http://www.securityfocus.com/bid/99161 http://www.securitytracker.com/id/1038732 Common Vulnerability Exposure (CVE) ID: CVE-2017-10920 http://www.securitytracker.com/id/1038734 Common Vulnerability Exposure (CVE) ID: CVE-2017-10921 Common Vulnerability Exposure (CVE) ID: CVE-2017-10922 Common Vulnerability Exposure (CVE) ID: CVE-2017-12135 BugTraq ID: 100344 http://www.securityfocus.com/bid/100344 https://security.gentoo.org/glsa/201801-14 https://bugzilla.redhat.com/show_bug.cgi?id=1477655 http://www.openwall.com/lists/oss-security/2017/08/15/1 http://www.openwall.com/lists/oss-security/2017/08/17/6 http://www.openwall.com/lists/oss-security/2020/04/14/4 http://www.securitytracker.com/id/1039178 Common Vulnerability Exposure (CVE) ID: CVE-2017-12137 BugTraq ID: 100342 http://www.securityfocus.com/bid/100342 https://bugzilla.redhat.com/show_bug.cgi?id=1477657 http://www.openwall.com/lists/oss-security/2017/08/15/2 http://www.securitytracker.com/id/1039174 Common Vulnerability Exposure (CVE) ID: CVE-2017-12855 BugTraq ID: 100341 http://www.securityfocus.com/bid/100341 http://www.securitytracker.com/id/1039177 Common Vulnerability Exposure (CVE) ID: CVE-2017-15596 http://www.securitytracker.com/id/1039568
Copyright	Copyright (C) 2017 Greenbone AG

This is only one of 145615 vulnerability tests in our test suite. Find out more about running a complete security audit. To run a free test of this vulnerability against your system, register below.