CVE-2021-24031 Information

Description

In the Zstandard command-line utility prior to v1.4.1 output files were created with default permissions. Correct file permissions (matching the input) would only be set at completion time. Output files could therefore be readable or writable to unintended parties.

CVSS Vector

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

Reference

https://www.facebook.com/security/advisories/cve-2021-24031 https://github.com/facebook/zstd/issues/1630 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.5