Test ID:	1.3.6.1.4.1.25623.1.0.704131
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DSA-4131-1)
Summary:	The remote host is missing an update for the Debian 'xen' package(s) announced via the DSA-4131-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'xen' package(s) announced via the DSA-4131-1 advisory. Vulnerability Insight: Multiple vulnerabilities have been discovered in the Xen hypervisor: CVE-2018-7540 Jann Horn discovered that missing checks in page table freeing may result in denial of service. CVE-2018-7541 Jan Beulich discovered that incorrect error handling in grant table checks may result in guest-to-host denial of service and potentially privilege escalation. CVE-2018-7542 Ian Jackson discovered that insufficient handling of x86 PVH guests without local APICs may result in guest-to-host denial of service. For the stable distribution (stretch), these problems have been fixed in version 4.8.3+comet2+shim4.10.0+comet3-1+deb9u5. We recommend that you upgrade your xen packages. For the detailed security status of xen please refer to its security tracker page at: [link moved to references] Affected Software/OS: 'xen' package(s) on Debian 9. Solution: Please install the updated package(s). CVSS Score: 6.1 CVSS Vector: AV:L/AC:L/Au:N/C:P/I:P/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2018-7540 BugTraq ID: 103174 http://www.securityfocus.com/bid/103174 Debian Security Information: DSA-4131 (Google Search) https://www.debian.org/security/2018/dsa-4131 https://security.gentoo.org/glsa/201810-06 https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html http://www.securitytracker.com/id/1040773 Common Vulnerability Exposure (CVE) ID: CVE-2018-7541 BugTraq ID: 103177 http://www.securityfocus.com/bid/103177 http://www.securitytracker.com/id/1040775 Common Vulnerability Exposure (CVE) ID: CVE-2018-7542 http://www.securitytracker.com/id/1040776
Copyright	Copyright (C) 2018 Greenbone AG

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