CVE Vulnerability

CVE-2021-24031

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.

2.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.facebook.com/security/advisories/cve-2021-24031 Vendor Advisory
https://github.com/facebook/zstd/issues/1630 Exploit Issue Tracking
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=981404 Exploit Issue Tracking
Configurations

Configuration 1

cpe:2.3:a:facebook:zstandard:*:*:*:*:*:*:*:*
Information

Published : 2021-03-04 09:15

Updated : 2021-04-14 03:28

NVD link : CVE-2021-24031

Mitre link : CVE-2021-24031

Products Affected
No products.
CWE
CWE-276

Incorrect Default Permissions