CVE-2021-24040 Information

Description

Due to use of unsafe YAML deserialization logic an attacker with the ability to modify local YAML configuration files could provide malicious input resulting in remote code execution or similar risks. This issue affects ParlAI prior to v1.1.0.

CVSS Vector

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

Reference

https://github.com/facebookresearch/ParlAI/releases/tag/v1.1.0 https://github.com/facebookresearch/ParlAI/security/advisories/GHSA-m87f-9fvv-2mgg http://packetstormsecurity.com/files/164136/Facebook-ParlAI-1.0.0-Code-Execution-Deserialization.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8