Race condition in Apple iOS - CVE-2020-27925
Published: November 6, 2020
Vulnerability identifier: #VU48191
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-2020-27925
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to a race condition with the CallKit subsystem in iOS when handling incoming calls. A user may answer two calls simultaneously without indication they have answered a second call.
Affected software
Apple iOS
iPadOS
iPadOS
How to mitigate CVE-2020-27925
Install updates from vendor's website.
Apple iOS - update to 14.2 18B92
iPadOS - update to 14.2 18B92
iPadOS - update to 14.2 18B92