Test ID:	1.3.6.1.4.1.25623.1.1.12.2021.5039.1
Category:	Ubuntu Local Security Checks
Title:	Ubuntu: Security Advisory (USN-5039-1)
Summary:	The remote host is missing an update for the 'linux, linux-aws, linux-kvm, linux-lts-xenial' package(s) announced via the USN-5039-1 advisory.
Description:	Summary: The remote host is missing an update for the 'linux, linux-aws, linux-kvm, linux-lts-xenial' package(s) announced via the USN-5039-1 advisory. Vulnerability Insight: Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt() implementation. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Affected Software/OS: 'linux, linux-aws, linux-kvm, linux-lts-xenial' package(s) on Ubuntu 14.04, Ubuntu 16.04. 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-2021-22555 http://packetstormsecurity.com/files/163528/Linux-Kernel-Netfilter-Heap-Out-Of-Bounds-Write.html http://packetstormsecurity.com/files/163878/Kernel-Live-Patch-Security-Notice-LSN-0080-1.html http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html http://packetstormsecurity.com/files/164437/Netfilter-x_tables-Heap-Out-Of-Bounds-Write-Privilege-Escalation.html http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/x_tables.c?id=9fa492cdc160cd27ce1046cb36f47d3b2b1efa21 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/x_tables.c?id=b29c457a6511435960115c0f548c4360d5f4801d https://github.com/google/security-research/security/advisories/GHSA-xxx5-8mvq-3528
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