Test ID:	1.3.6.1.4.1.25623.1.0.843341
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-3453-1)
Summary:	The remote host is missing an update for the 'xorg-server, xorg-server-hwe-16.04, xorg-server-lts-xenial' package(s) announced via the USN-3453-1 advisory.
Description:	Summary: The remote host is missing an update for the 'xorg-server, xorg-server-hwe-16.04, xorg-server-lts-xenial' package(s) announced via the USN-3453-1 advisory. Vulnerability Insight: Michal Srb discovered that the X.Org X server incorrectly handled shared memory segments. An attacker able to connect to an X server, either locally or remotely, could use this issue to crash the server, or possibly replace shared memory segments of other X clients in the same session. (CVE-2017-13721) Michal Srb discovered that the X.Org X server incorrectly handled XKB buffers. An attacker able to connect to an X server, either locally or remotely, could use this issue to crash the server, or possibly execute arbitrary code. (CVE-2017-13723) Affected Software/OS: 'xorg-server, xorg-server-hwe-16.04, xorg-server-lts-xenial' package(s) on Ubuntu 14.04, Ubuntu 16.04, Ubuntu 17.04. Solution: Please install the updated package(s). CVSS Score: 4.6 CVSS Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2017-13721 BugTraq ID: 101238 http://www.securityfocus.com/bid/101238 Debian Security Information: DSA-4000 (Google Search) http://www.debian.org/security/2017/dsa-4000 https://security.gentoo.org/glsa/201710-30 http://www.openwall.com/lists/oss-security/2017/10/04/10 https://lists.x.org/archives/xorg-announce/2017-October/002808.html Common Vulnerability Exposure (CVE) ID: CVE-2017-13723 BugTraq ID: 101253 http://www.securityfocus.com/bid/101253 https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html
Copyright	Copyright (C) 2017 Greenbone AG

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