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Amazon Linux 2 : golang (ALAS-2021-1694)

high Nessus Plugin ID 152236

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of golang installed on the remote host is prior to 1.15.14-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1694 advisory.

 - Go before 1.15.12 and 1.16.x before 1.16.5 attempts to allocate excessive memory (issue 1 of 2).
 (CVE-2021-33196)

 - The crypto/tls package of Go through 1.16.5 does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a malicious TLS server to cause a TLS client to panic. (CVE-2021-34558)

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/AL2/ALAS-2021-1694.html

https://access.redhat.com/security/cve/CVE-2021-33196

https://access.redhat.com/security/cve/CVE-2021-34558

Plugin Details

Severity: High

ID: 152236

File Name: al2_ALAS-2021-1694.nasl

Version: 1.6

Type: local

Agent: unix

Published: 8/6/2021

Updated: 12/6/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2021-33196

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

Temporal Vector: CVSS:3.0/E:P/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:2

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/4/2021

Vulnerability Publication Date: 7/1/2021

Reference Information

CVE: CVE-2021-33196, CVE-2021-34558

ALAS: 2021-1694

IAVB: 2021-B-0047-S