Out-of-bounds read in macOS - CVE-2021-30973
Published: December 14, 2021
Vulnerability identifier: #VU58871
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-30973
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the Model I/O subsystem. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
Affected software
macOS
iPadOS
Apple iOS
iPadOS
Apple iOS
How to mitigate CVE-2021-30973
Install updates from vendor's website.
macOS - addressed in versions 12.1 21C52, 10.15.7 19H1615, 11.6.2 20G314
iPadOS - update to 15.2 19C56
Apple iOS - addressed in versions 15.2 19C56, 15.2 19C57
iPadOS - update to 15.2 19C56
Apple iOS - addressed in versions 15.2 19C56, 15.2 19C57