CVE-2020-27897 Information

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.1 Security Update 2020-001 Catalina Security Update 2020-007 Mojave macOS Big Sur 11.0.1. An application may be able to execute arbitrary code with kernel privileges.

CVSS Vector

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

Reference

https://support.apple.com/en-us/HT212011 https://support.apple.com/en-us/HT211931 https://www.zerodayinitiative.com/advisories/ZDI-21-486/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8