Test ID:	1.3.6.1.4.1.25623.1.0.843842
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-3836-2)
Summary:	The remote host is missing an update for the 'linux-gcp, linux-hwe' package(s) announced via the USN-3836-2 advisory.
Description:	Summary: The remote host is missing an update for the 'linux-gcp, linux-hwe' package(s) announced via the USN-3836-2 advisory. Vulnerability Insight: USN-3836-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. Jann Horn discovered that the Linux kernel mishandles mapping UID or GID ranges inside nested user namespaces in some situations. A local attacker could use this to bypass access controls on resources outside the namespace. (CVE-2018-18955) Philipp Wendler discovered that the overlayfs implementation in the Linux kernel did not properly verify the directory contents permissions from within a unprivileged user namespace. A local attacker could use this to expose sensitive information (protected file names). (CVE-2018-6559) Affected Software/OS: 'linux-gcp, linux-hwe' package(s) on Ubuntu 16.04. Solution: Please install the updated package(s). CVSS Score: 4.4 CVSS Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2018-18955 BugTraq ID: 105941 http://www.securityfocus.com/bid/105941 https://www.exploit-db.com/exploits/45886/ https://www.exploit-db.com/exploits/45915/ http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d2f007dbe7e4c9583eea6eb04d60001e85c6f1bd https://bugs.chromium.org/p/project-zero/issues/detail?id=1712 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.19 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.2 https://github.com/torvalds/linux/commit/d2f007dbe7e4c9583eea6eb04d60001e85c6f1bd https://usn.ubuntu.com/3832-1/ https://usn.ubuntu.com/3833-1/ https://usn.ubuntu.com/3835-1/ https://usn.ubuntu.com/3836-1/ https://usn.ubuntu.com/3836-2/ Common Vulnerability Exposure (CVE) ID: CVE-2018-6559 BugTraq ID: 105752 http://www.securityfocus.com/bid/105752
Copyright	Copyright (C) 2018 Greenbone AG

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