CVE-2021-30949

high

Description

A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to execute arbitrary code with kernel privileges.

References

https://support.apple.com/en-us/HT212975

https://support.apple.com/en-us/HT212978

https://support.apple.com/en-us/HT212979

https://support.apple.com/en-us/HT212976

https://support.apple.com/en-us/HT212981

https://support.apple.com/en-us/HT212980

http://packetstormsecurity.com/files/165670/XNU-Kernel-mach_msg-Use-After-Free.html

Details

Source: MITRE

Published: 2021-08-24

Updated: 2022-02-09

Type: CWE-787

Risk Information

CVSS v2

Base Score: 9.3

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 8.6

Severity: HIGH

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH