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SUSE SLES15 Security Update : python-PyYAML (SUSE-SU-2022:2841-1)

critical Nessus Plugin ID 164306

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2841-1 advisory.

 - CVE-2020-1747: Fixed an arbitrary code execution issue when parsing an untrusted YAML file with the default loader (bsc#1165439).
 - CVE-2020-14343: Completed the fix for CVE-2020-1747 (bsc#1174514).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

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

Solution

Update the affected python2-PyYAML and / or python3-PyYAML packages.

See Also

https://bugzilla.suse.com/1165439

https://bugzilla.suse.com/1174514

https://www.suse.com/security/cve/CVE-2020-14343

https://www.suse.com/security/cve/CVE-2020-1747

http://www.nessus.org/u?7817e8bd

Plugin Details

Severity: Critical

ID: 164306

File Name: suse_SU-2022-2841-1.nasl

Version: 1.7

Type: Local

Agent: unix

Published: 8/20/2022

Updated: 6/25/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2020-1747

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.9

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:python3-pyyaml, p-cpe:/a:novell:suse_linux:python2-pyyaml, cpe:/o:novell:suse_linux:15

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/18/2022

Vulnerability Publication Date: 3/19/2020

Reference Information

CVE: CVE-2020-14343, CVE-2020-1747

SuSE: SUSE-SU-2022:2841-1