Amazon Linux 2 Security Advisory: ALAS-2018-971
Advisory Release Date: 2018-03-16 16:18 Pacific
Advisory Updated Date: 2018-03-16 22:56 Pacific
Severity:
Important
Issue Overview:
Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c:
A flaw was found in the Linux kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory. (CVE-2018-1068)
Affected Packages:
kernel
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update kernel to update your system. You will need to reboot your system in order for the new kernel to be running.
New Packages:
noarch:
kernel-doc-4.9.85-47.59.amzn2.noarch
src:
kernel-4.9.85-47.59.amzn2.src
x86_64:
kernel-4.9.85-47.59.amzn2.x86_64
kernel-headers-4.9.85-47.59.amzn2.x86_64
kernel-debuginfo-common-x86_64-4.9.85-47.59.amzn2.x86_64
perf-4.9.85-47.59.amzn2.x86_64
perf-debuginfo-4.9.85-47.59.amzn2.x86_64
python-perf-4.9.85-47.59.amzn2.x86_64
python-perf-debuginfo-4.9.85-47.59.amzn2.x86_64
kernel-tools-4.9.85-47.59.amzn2.x86_64
kernel-tools-devel-4.9.85-47.59.amzn2.x86_64
kernel-tools-debuginfo-4.9.85-47.59.amzn2.x86_64
kernel-devel-4.9.85-47.59.amzn2.x86_64
kernel-debuginfo-4.9.85-47.59.amzn2.x86_64