Security restrictions bypass in iPadOS and Apple iOS - CVE-2021-30769

 

Security restrictions bypass in iPadOS and Apple iOS - CVE-2021-30769

Published: July 22, 2021


Vulnerability identifier: #VU55225
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-30769
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local application to bypass implemented security restrictions.

The vulnerability exists due to a logic issue within OS Kernel subsystem. A local application can bypass Pointer Authentication.


Affected software

iPadOS
Apple iOS
watchOS
tvOS

How to mitigate CVE-2021-30769

Install updates from vendor's website.

iPadOS - addressed in versions 14.7 18G69, 14.7 18G70
Apple iOS - update to 14.7 18G69
watchOS - update to 7.6 18U63
tvOS - update to 14.7 18M60

External References

Related Security Bulletins