Buffer overflow in macOS - CVE-2021-30701
Published: May 24, 2021 / Updated: July 13, 2021
Vulnerability identifier: #VU53462
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-30701
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing image files in ImageIO. A remote attacker can create a specially crafted PICT image file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
macOS
watchOS
tvOS
iPadOS
Apple iOS
watchOS
tvOS
iPadOS
Apple iOS
How to mitigate CVE-2021-30701
Install updates from vendor's website.
macOS - addressed in versions 11.4 20F71, 10.15.7 19H1217
watchOS - update to 7.5 18T567
tvOS - update to 14.6 18L569
iPadOS - update to 14.6 18F72
Apple iOS - update to 14.6 18F72
watchOS - update to 7.5 18T567
tvOS - update to 14.6 18L569
iPadOS - update to 14.6 18F72
Apple iOS - update to 14.6 18F72