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Alpine: py3-yaml: security update to 5.3.1-r0

critical Tenable Self-Hosted Container Security Plugin ID 406726

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - A vulnerability was discovered in the PyYAML library in versions before 5.3.1, 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. An attacker could use this flaw to execute arbitrary code on the system by abusing the
 python/object/new constructor. (CVE-2020-1747)

See Also

https://security.alpinelinux.org/vuln/CVE-2020-1747

Plugin Details

Severity: Critical

ID: 406726

Version: Revision 1.37

Type: Local

Published: 10/31/2023

Updated: 9/1/2025

Supported Sensors: Agentless Assessment

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.95

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-2020-1747

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/19/2020

Reference Information

CVE: CVE-2020-1747