CVE-2020-27950 Information

Description

A memory initialization issue was addressed. This issue is fixed in macOS Big Sur 11.0.1 watchOS 7.1 iOS 12.4.9 watchOS 6.2.9 Security Update 2020-006 High Sierra Security Update 2020-006 Mojave iOS 14.2 and iPadOS 14.2 watchOS 5.3.9 macOS Catalina 10.15.7 Supplemental Update macOS Catalina 10.15.7 Update. A malicious application may be able to disclose kernel memory.

CVSS Vector

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

Reference

https://support.apple.com/en-us/HT211929 https://support.apple.com/en-us/HT211928 https://support.apple.com/en-us/HT211947 https://support.apple.com/en-us/HT211946 https://support.apple.com/en-us/HT211931 https://support.apple.com/en-us/HT211945 https://support.apple.com/en-us/HT211944 https://support.apple.com/en-us/HT211940 http://seclists.org/fulldisclosure/2020/Dec/32 http://packetstormsecurity.com/files/161296/XNU-Kernel-Mach-Message-Trailers-Memory-Disclosure.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.5