ALAS-2018-1044


Amazon Linux AMI Security Advisory: ALAS-2018-1044
Advisory Release Date: 2018-07-24 21:03 Pacific
Severity: Medium
References: CVE-2018-12232 

Issue Overview:

A NULL pointer dereference issue was found in the Linux kernel. If the close() and fchownat() system calls share a socket file descriptor as an argument, then the two calls can race and trigger a NULL pointer dereference leading to a system crash and a denial of service.(CVE-2018-12232 )


Affected Packages:

kernel


Issue Correction:
Run yum update kernel and reboot the instance to update your system.

New Packages:
i686:
    perf-debuginfo-4.14.51-60.38.amzn1.i686
    kernel-devel-4.14.51-60.38.amzn1.i686
    kernel-debuginfo-common-i686-4.14.51-60.38.amzn1.i686
    kernel-tools-debuginfo-4.14.51-60.38.amzn1.i686
    kernel-headers-4.14.51-60.38.amzn1.i686
    kernel-tools-devel-4.14.51-60.38.amzn1.i686
    kernel-tools-4.14.51-60.38.amzn1.i686
    kernel-4.14.51-60.38.amzn1.i686
    kernel-debuginfo-4.14.51-60.38.amzn1.i686
    perf-4.14.51-60.38.amzn1.i686

src:
    kernel-4.14.51-60.38.amzn1.src

x86_64:
    kernel-devel-4.14.51-60.38.amzn1.x86_64
    kernel-tools-debuginfo-4.14.51-60.38.amzn1.x86_64
    perf-4.14.51-60.38.amzn1.x86_64
    kernel-tools-4.14.51-60.38.amzn1.x86_64
    kernel-debuginfo-common-x86_64-4.14.51-60.38.amzn1.x86_64
    kernel-debuginfo-4.14.51-60.38.amzn1.x86_64
    kernel-4.14.51-60.38.amzn1.x86_64
    kernel-headers-4.14.51-60.38.amzn1.x86_64
    kernel-tools-devel-4.14.51-60.38.amzn1.x86_64
    perf-debuginfo-4.14.51-60.38.amzn1.x86_64