CVE-2020-14343

Published: Feb 9, 2021Modified: Nov 21, 2024

9.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 3.9 / Impact: 5.9

Source: NVD

Description

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.

Affected (3)

Products: Pyyaml: Pyyaml · Oracle: Communications Cloud Native Core Network Function Cloud Native Environment

Pyyaml

1 product

Pyyaml

Oracle

1 product

Communications Cloud Native Core Network Function Cloud Native Environment

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Pyyaml Pyyaml	From 5.1 to 5.4

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Oracle Communications Cloud Native Core Network Function Cloud Native Environment	Version 1.10.0
Oracle Communications Cloud Native Core Network Function Cloud Native Environment	Version 22.1.0