Detections
Analytics
Amazon Linux 2 : kernel (ALAS-2018-1058) (Foreshadow)
high Nessus Plugin ID 111701
Language:
Synopsis
The remote Amazon Linux 2 host is missing a security update.Description
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)
Solution
Run 'yum update kernel' and reboot your instance to update your system.See Also
Plugin Details
Severity: High
ID: 111701
File Name: al2_ALAS-2018-1058.nasl
Version: 1.6
Type: local
Agent: unix
Published: 8/15/2018
Updated: 11/19/2018
Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: High
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS v3
Risk Factor: High
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:kernel, p-cpe:/a:amazon:linux:kernel-debuginfo, p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64, p-cpe:/a:amazon:linux:kernel-devel, p-cpe:/a:amazon:linux:kernel-headers, p-cpe:/a:amazon:linux:kernel-tools, p-cpe:/a:amazon:linux:kernel-tools-debuginfo, p-cpe:/a:amazon:linux:kernel-tools-devel, p-cpe:/a:amazon:linux:perf, p-cpe:/a:amazon:linux:perf-debuginfo, p-cpe:/a:amazon:linux:python-perf, p-cpe:/a:amazon:linux:python-perf-debuginfo, cpe:/o:amazon:linux:2
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/rpm-list, Host/AmazonLinux/release
Patch Publication Date: 8/14/2018
Reference Information
CVE: CVE-2018-3615, CVE-2018-3620, CVE-2018-3646, CVE-2018-5391
ALAS: 2018-1058