Out-of-bounds read in macOS - CVE-2021-30705
Published: May 24, 2021
Vulnerability identifier: #VU53461
CSH Severity: Medium
CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-30705
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 ImageIO. A remote attacker can create a specially crafted ASTC file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
Affected software
macOS
watchOS
iPadOS
tvOS
Apple iOS
watchOS
iPadOS
tvOS
Apple iOS
How to mitigate CVE-2021-30705
Install updates from vendor's website.
macOS - addressed in versions 11.4 20F71, 10.14.6 18G9216, 10.15.7 19H1217
watchOS - update to 7.5 18T567
iPadOS - update to 14.6 18F72
tvOS - update to 14.6 18L569
Apple iOS - update to 14.6 18F72
watchOS - update to 7.5 18T567
iPadOS - update to 14.6 18F72
tvOS - update to 14.6 18L569
Apple iOS - update to 14.6 18F72