ALAS-2018-1058


Amazon Linux AMI Security Advisory: ALAS-2018-1058
Advisory Release Date: 2018-08-14 17:53 Pacific
Severity: Critical

Issue Overview:

Fixes for L1Terminal Fault security issues:

L1 Terminal Fault-OS/ SMM:
Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access via a terminal page fault and side-channel analysis.(CVE-2018-3620 )

L1 Terminal Fault-VMM:
Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and side-channel analysis.(CVE-2018-3646 )

L1 Terminal Fault-SGX:
Systems with microprocessors utilizing speculative execution and Intel SGX may allow unauthorized disclosure of information residing in the L1 data cache from an enclave to an attacker with local user access via side-channel analysis. AWS is not affected by CVE-2018-3615 . There is no AWS products related to enclave systems like SGX.(CVE-2018-3615 )

Denial of service caused by a large number of IP fragments:
A denial of service attack by exhausting resources on a networked host by sending a large number of IP fragments that can not be reassembled by the receiver.(CVE-2018-5391 )


Affected Packages:

kernel


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

New Packages:
i686:
    kernel-headers-4.14.62-65.117.amzn1.i686
    perf-4.14.62-65.117.amzn1.i686
    kernel-4.14.62-65.117.amzn1.i686
    kernel-debuginfo-4.14.62-65.117.amzn1.i686
    kernel-tools-debuginfo-4.14.62-65.117.amzn1.i686
    kernel-devel-4.14.62-65.117.amzn1.i686
    kernel-debuginfo-common-i686-4.14.62-65.117.amzn1.i686
    kernel-tools-devel-4.14.62-65.117.amzn1.i686
    perf-debuginfo-4.14.62-65.117.amzn1.i686
    kernel-tools-4.14.62-65.117.amzn1.i686

src:
    kernel-4.14.62-65.117.amzn1.src

x86_64:
    kernel-4.14.62-65.117.amzn1.x86_64
    perf-4.14.62-65.117.amzn1.x86_64
    kernel-headers-4.14.62-65.117.amzn1.x86_64
    perf-debuginfo-4.14.62-65.117.amzn1.x86_64
    kernel-debuginfo-4.14.62-65.117.amzn1.x86_64
    kernel-tools-devel-4.14.62-65.117.amzn1.x86_64
    kernel-tools-debuginfo-4.14.62-65.117.amzn1.x86_64
    kernel-tools-4.14.62-65.117.amzn1.x86_64
    kernel-debuginfo-common-x86_64-4.14.62-65.117.amzn1.x86_64
    kernel-devel-4.14.62-65.117.amzn1.x86_64