ALAS-2019-1212


Amazon Linux AMI Security Advisory: ALAS-2019-1212
Advisory Release Date: 2019-05-20 23:55 Pacific
Severity: Important
References: CVE-2019-11815 

Issue Overview:

A flaw was found in the Linux kernel's implementation of RDS over TCP. A system that has the rds_tcp kernel module loaded (either through autoload via local process running listen(), or manual loading) could possibly cause a use after free (UAF) in which an attacker who is able to manipulate socket state while a network namespace is being torn down. This can lead to possible memory corruption and privilege escalation. (CVE-2019-11815 )


Affected Packages:

kernel


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

New Packages:
i686:
    kernel-tools-devel-4.14.114-83.126.amzn1.i686
    kernel-headers-4.14.114-83.126.amzn1.i686
    kernel-tools-4.14.114-83.126.amzn1.i686
    perf-debuginfo-4.14.114-83.126.amzn1.i686
    kernel-tools-debuginfo-4.14.114-83.126.amzn1.i686
    kernel-debuginfo-common-i686-4.14.114-83.126.amzn1.i686
    kernel-devel-4.14.114-83.126.amzn1.i686
    kernel-debuginfo-4.14.114-83.126.amzn1.i686
    kernel-4.14.114-83.126.amzn1.i686
    perf-4.14.114-83.126.amzn1.i686

src:
    kernel-4.14.114-83.126.amzn1.src

x86_64:
    kernel-debuginfo-4.14.114-83.126.amzn1.x86_64
    kernel-devel-4.14.114-83.126.amzn1.x86_64
    kernel-debuginfo-common-x86_64-4.14.114-83.126.amzn1.x86_64
    kernel-headers-4.14.114-83.126.amzn1.x86_64
    perf-4.14.114-83.126.amzn1.x86_64
    perf-debuginfo-4.14.114-83.126.amzn1.x86_64
    kernel-tools-devel-4.14.114-83.126.amzn1.x86_64
    kernel-tools-4.14.114-83.126.amzn1.x86_64
    kernel-tools-debuginfo-4.14.114-83.126.amzn1.x86_64
    kernel-4.14.114-83.126.amzn1.x86_64