Out-of-bounds write in Apple iOS and iPadOS - CVE-2021-30900
Published: October 27, 2021 / Updated: March 30, 2023
Vulnerability identifier: #VU57747
CSH Severity: High
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-30900
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a malicious application to escalate privileges on the system.
The vulnerability exists due to a boundary error in GPU Drivers. A malicious application can trigger an out-of-bounds write and execute arbitrary code with kernel privileges.
Affected software
Apple iOS
iPadOS
macOS
iPadOS
macOS
How to mitigate CVE-2021-30900
Install updates from vendor's website.
Apple iOS - addressed in versions 15.1 19B74, 14.8.1 18H107
iPadOS - addressed in versions 15.1 19B74, 15.1 19B75, 14.8.1 18H107
macOS - update to 11.6.1 20G224
iPadOS - addressed in versions 15.1 19B74, 15.1 19B75, 14.8.1 18H107
macOS - update to 11.6.1 20G224