Out-of-bounds read in macOS - CVE-2021-30911
Published: October 27, 2021
Vulnerability identifier: #VU57722
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-2021-30911
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 in Model I/O subsystem. A remote attacker can create a specially crafted USD 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-2021-30911
Install updates from vendor's website.
macOS - addressed in versions 11.6.1 20G224, 10.15.7 19H1519, 12.0.1 21A559
iPadOS - addressed in versions 15.1 19B74, 15.1 19B75
Apple iOS - update to 15.1 19B74
iPadOS - addressed in versions 15.1 19B74, 15.1 19B75
Apple iOS - update to 15.1 19B74