Amazon Linux AMI : golang (ALAS-2020-1436)

high Nessus Plugin ID 141969
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

The version of tested product installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2020-1436 advisory.

- The x/text package before 0.3.3 for Go has a vulnerability in encoding/unicode that could lead to the UTF-16 decoder entering an infinite loop, causing the program to crash or run out of memory. An attacker could provide a single byte to a UTF16 decoder instantiated with UseBOM or ExpectBOM to trigger an infinite loop if the String function on the Decoder is called, or the Decoder is passed to golang.org/x/text/transform.String. (CVE-2020-14040)

- Go before 1.13.15 and 14.x before 1.14.7 can have an infinite read loop in ReadUvarint and ReadVarint in encoding/binary via invalid inputs. (CVE-2020-16845)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update golang' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2020-1436.html

https://access.redhat.com/security/cve/CVE-2020-14040

https://access.redhat.com/security/cve/CVE-2020-16845

Plugin Details

Severity: High

ID: 141969

File Name: ala_ALAS-2020-1436.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/28/2020

Updated: 10/29/2020

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-16845

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:golang, p-cpe:/a:amazon:linux:golang-bin, p-cpe:/a:amazon:linux:golang-docs, p-cpe:/a:amazon:linux:golang-misc, p-cpe:/a:amazon:linux:golang-race, p-cpe:/a:amazon:linux:golang-src, p-cpe:/a:amazon:linux:golang-tests, cpe:/o:amazon:linux

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/26/2020

Vulnerability Publication Date: 6/17/2020

Reference Information

CVE: CVE-2020-14040, CVE-2020-16845

ALAS: 2020-1436