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AlmaLinux 8 : python38:3.8 and python38-devel:3.8 (ALSA-2021:2583)

critical Nessus Plugin ID 157659

Synopsis

The remote AlmaLinux host is missing a security update.

Description

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2021:2583 advisory.

 - A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747. (CVE-2020-14343)

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

Solution

Update the affected packages.

See Also

https://errata.almalinux.org/8/ALSA-2021-2583.html

Plugin Details

Severity: Critical

ID: 157659

File Name: alma_linux_ALSA-2021-2583.nasl

Version: 1.3

Type: local

Published: 2/9/2022

Updated: 2/14/2022

Supported Sensors: Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2020-14343

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:alma:linux:python38-pluggy, p-cpe:/a:alma:linux:python38-pyparsing, p-cpe:/a:alma:linux:python38-attrs, p-cpe:/a:alma:linux:python38-py, cpe:/o:alma:linux:8, p-cpe:/a:alma:linux:python38-more-itertools, p-cpe:/a:alma:linux:python38-wcwidth, p-cpe:/a:alma:linux:python38-pytest, p-cpe:/a:alma:linux:python38-packaging, p-cpe:/a:alma:linux:python38-atomicwrites

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/29/2021

Vulnerability Publication Date: 1/21/2021

Reference Information

CVE: CVE-2020-14343

IAVA: 2021-A-0463