Permissions, Privileges, and Access Controls in macOS - CVE-2021-30768

Vulnerability identifier: #VU55199

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-2021-30768

CWE-ID: CWE-264

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local application to bypass sandbox restrictions.

The vulnerability exists due to improperly imposed security restrictions within the dyld component. A sandboxed process may be able to circumvent sandbox restrictions.

macOS
watchOS
tvOS
iPadOS
Apple iOS

Install updates from vendor's website.

macOS - addressed in versions 11.5 20G71, 10.15.7 19H1323
watchOS - update to 7.6 18U63
tvOS - update to 14.7 18M60
iPadOS - addressed in versions 14.7 18G69, 14.7 18G70
Apple iOS - update to 14.7 18G69

• https://support.apple.com/en-us/HT212602

• Multiple vulnerabilities in Apple macOS Big Sur
• Multiple vulnerabilities in Apple iOS and iPadOS
• Multiple vulnerabilities in Apple tvOS
• Multiple vulnerabilities in Apple watchOS
• Multiple vulnerabilities in Apple macOS Catalina