Test ID:	1.3.6.1.4.1.25623.1.0.843352
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-3468-2)
Summary:	The remote host is missing an update for the 'linux-hwe' package(s) announced via the USN-3468-2 advisory.
Description:	Summary: The remote host is missing an update for the 'linux-hwe' package(s) announced via the USN-3468-2 advisory. Vulnerability Insight: USN-3468-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. It was discovered that the KVM subsystem in the Linux kernel did not properly bound guest IRQs. A local attacker in a guest VM could use this to cause a denial of service (host system crash). (CVE-2017-1000252) It was discovered that the Flash-Friendly File System (f2fs) implementation in the Linux kernel did not properly validate superblock metadata. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-10663) Anthony Perard discovered that the Xen virtual block driver did not properly initialize some data structures before passing them to user space. A local attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. (CVE-2017-10911) It was discovered that a use-after-free vulnerability existed in the POSIX message queue implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-11176) Dave Chinner discovered that the XFS filesystem did not enforce that the realtime inode flag was settable only on filesystems on a realtime device. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-14340) Affected Software/OS: 'linux-hwe' package(s) on Ubuntu 16.04. 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-2017-1000252 BugTraq ID: 101022 http://www.securityfocus.com/bid/101022 Debian Security Information: DSA-3981 (Google Search) http://www.debian.org/security/2017/dsa-3981 RedHat Security Advisories: RHSA-2018:0676 https://access.redhat.com/errata/RHSA-2018:0676 RedHat Security Advisories: RHSA-2018:1062 https://access.redhat.com/errata/RHSA-2018:1062 RedHat Security Advisories: RHSA-2018:1130 https://access.redhat.com/errata/RHSA-2018:1130 Common Vulnerability Exposure (CVE) ID: CVE-2017-10663 BugTraq ID: 100215 http://www.securityfocus.com/bid/100215 Common Vulnerability Exposure (CVE) ID: CVE-2017-10911 BugTraq ID: 99162 http://www.securityfocus.com/bid/99162 Debian Security Information: DSA-3920 (Google Search) http://www.debian.org/security/2017/dsa-3920 Debian Security Information: DSA-3927 (Google Search) http://www.debian.org/security/2017/dsa-3927 Debian Security Information: DSA-3945 (Google Search) http://www.debian.org/security/2017/dsa-3945 https://security.gentoo.org/glsa/201708-03 https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html http://www.securitytracker.com/id/1038720 Common Vulnerability Exposure (CVE) ID: CVE-2017-11176 BugTraq ID: 99919 http://www.securityfocus.com/bid/99919 https://www.exploit-db.com/exploits/45553/ RedHat Security Advisories: RHSA-2017:2918 https://access.redhat.com/errata/RHSA-2017:2918 RedHat Security Advisories: RHSA-2017:2930 https://access.redhat.com/errata/RHSA-2017:2930 RedHat Security Advisories: RHSA-2017:2931 https://access.redhat.com/errata/RHSA-2017:2931 RedHat Security Advisories: RHSA-2018:0169 https://access.redhat.com/errata/RHSA-2018:0169 RedHat Security Advisories: RHSA-2018:3822 https://access.redhat.com/errata/RHSA-2018:3822 Common Vulnerability Exposure (CVE) ID: CVE-2017-14340 BugTraq ID: 100851 http://www.securityfocus.com/bid/100851
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