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Amazon Linux 2 : python, python3 (ALAS-2020-1471)

high Nessus Plugin ID 139339

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Synopsis

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

Description

Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking. (CVE-2020-8492)

Solution

Run 'yum update python' to update your system.
 Run 'yum update python3' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2020-1471.html

https://alas.aws.amazon.com/cve/html/CVE-2020-8492.html

https://alas.aws.amazon.com/cve/html/CVE-2022-48560.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: High

ID: 139339

File Name: al2_ALAS-2020-1471.nasl

Version: 1.3

Type: local

Agent: unix

Published: 8/6/2020

Updated: 10/26/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.6

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

CVSS Score Source: CVE-2020-8492

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

CVSS Score Source: CVE-2022-48560

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:python3, p-cpe:/a:amazon:linux:python-tools, p-cpe:/a:amazon:linux:python3-test, p-cpe:/a:amazon:linux:python-test, p-cpe:/a:amazon:linux:python-debuginfo, p-cpe:/a:amazon:linux:python-devel, p-cpe:/a:amazon:linux:python3-devel, p-cpe:/a:amazon:linux:python-debug, p-cpe:/a:amazon:linux:python-libs, p-cpe:/a:amazon:linux:python, p-cpe:/a:amazon:linux:python3-debug, p-cpe:/a:amazon:linux:python3-debuginfo, p-cpe:/a:amazon:linux:python3-tools, p-cpe:/a:amazon:linux:tkinter, p-cpe:/a:amazon:linux:python3-libs, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:python3-tkinter

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: 8/5/2020

Vulnerability Publication Date: 1/30/2020

Reference Information

CVE: CVE-2020-8492, CVE-2022-48560

ALAS: 2020-1471