Vulmon
Amazon Linux AMI Security Advisory: ALAS-2019-1149
Advisory Release Date: 2019-01-25 02:26 Pacific
Advisory Updated Date: 2019-01-25 02:34 Pacific
Severity:
Important
References:
CVE-2018-16884
Issue Overview:
A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. (CVE-2018-16884)
Affected Packages:
kernel
Issue Correction:
Run yum update kernel to update your system.
New Packages:
i686:
perf-debuginfo-4.14.94-73.73.amzn1.i686
kernel-tools-debuginfo-4.14.94-73.73.amzn1.i686
kernel-tools-devel-4.14.94-73.73.amzn1.i686
perf-4.14.94-73.73.amzn1.i686
kernel-debuginfo-common-i686-4.14.94-73.73.amzn1.i686
kernel-devel-4.14.94-73.73.amzn1.i686
kernel-tools-4.14.94-73.73.amzn1.i686
kernel-4.14.94-73.73.amzn1.i686
kernel-debuginfo-4.14.94-73.73.amzn1.i686
kernel-headers-4.14.94-73.73.amzn1.i686
src:
kernel-4.14.94-73.73.amzn1.src
x86_64:
kernel-tools-4.14.94-73.73.amzn1.x86_64
perf-4.14.94-73.73.amzn1.x86_64
perf-debuginfo-4.14.94-73.73.amzn1.x86_64
kernel-headers-4.14.94-73.73.amzn1.x86_64
kernel-4.14.94-73.73.amzn1.x86_64
kernel-tools-debuginfo-4.14.94-73.73.amzn1.x86_64
kernel-devel-4.14.94-73.73.amzn1.x86_64
kernel-debuginfo-4.14.94-73.73.amzn1.x86_64
kernel-tools-devel-4.14.94-73.73.amzn1.x86_64
kernel-debuginfo-common-x86_64-4.14.94-73.73.amzn1.x86_64