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Amazon Linux 2 : python38 (ALASPYTHON3.8-2023-007)

medium Nessus Plugin ID 181954

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Synopsis

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

Description

The version of python38 installed on the remote host is prior to 3.8.15-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2PYTHON3.8-2023-007 advisory.

 - A flaw was found in python. In algorithms with quadratic time complexity using non-binary bases, when using int(text), a system could take 50ms to parse an int string with 100,000 digits and 5s for 1,000,000 digits (float, decimal, int.from_bytes(), and int() for binary bases 2, 4, 8, 16, and 32 are not affected). The highest threat from this vulnerability is to system availability. (CVE-2020-10735)

 - An issue was discovered in compare_digest in Lib/hmac.py in Python through 3.9.1. Constant-time-defeating optimisations were possible in the accumulator variable in hmac.compare_digest. (CVE-2022-48566)

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

Solution

Run 'yum update python38' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALASPYTHON3.8-2023-007.html

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

https://alas.aws.amazon.com/cve/html/CVE-2020-10735.html

https://alas.aws.amazon.com/cve/html/CVE-2022-48566.html

Plugin Details

Severity: Medium

ID: 181954

File Name: al2_ALASPYTHON3_8-2023-007.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/27/2023

Updated: 1/23/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.2

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

CVSS Score Source: CVE-2022-48566

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.3

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:python38, p-cpe:/a:amazon:linux:python38-debug, p-cpe:/a:amazon:linux:python38-debuginfo, p-cpe:/a:amazon:linux:python38-devel, p-cpe:/a:amazon:linux:python38-libs, p-cpe:/a:amazon:linux:python38-test, p-cpe:/a:amazon:linux:python38-tkinter, p-cpe:/a:amazon:linux:python38-tools, 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: 8/21/2023

Vulnerability Publication Date: 9/8/2022

Reference Information

CVE: CVE-2020-10735, CVE-2022-48566