Buffer overflow in iPadOS and Apple iOS - CVE-2021-1816
Published: April 28, 2021
Vulnerability identifier: #VU52683
CSH Severity: Low
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-2021-1816
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within OS kernel. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code with elevated privileges.
Affected software
iPadOS
Apple iOS
watchOS
tvOS
Apple iOS
watchOS
tvOS
How to mitigate CVE-2021-1816
Install updates from vendor's website.
iPadOS - update to 14.5 18E199
Apple iOS - update to 14.5 18E199
watchOS - update to 7.4 18T195
tvOS - update to 14.5 18L204
Apple iOS - update to 14.5 18E199
watchOS - update to 7.4 18T195
tvOS - update to 14.5 18L204