CVE-2021-30738 Information

Description

A malicious application may be able to overwrite arbitrary files. This issue is fixed in macOS Big Sur 11.4 Security Update 2021-004 Mojave. An issue with path validation logic for hardlinks was addressed with improved path sanitization.

CVSS Vector

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

Reference

https://support.apple.com/en-us/HT212531 https://support.apple.com/en-us/HT212529

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

5.5