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.
Published: 2021-02-09
Score: 9.8 Critical
EPSS: 13.7% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-8q59-q68h-6hv4 Improper Input Validation in PyYAML
Ubuntu USN Ubuntu USN USN-4940-1 PyYAML vulnerability
History

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Subscriptions

Oracle Communications Cloud Native Core Network Function Cloud Native Environment
Pyyaml Pyyaml
Redhat Enterprise Linux Satellite Satellite Capsule
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-04T12:39:36.530Z

Reserved: 2020-06-17T00:00:00.000Z

Link: CVE-2020-14343

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-02-09T21:15:12.707

Modified: 2024-11-21T05:03:03.217

Link: CVE-2020-14343

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-07-22T00:00:00Z

Links: CVE-2020-14343 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses