Resource management error in macOS - CVE-2021-1872
Published: April 27, 2021
Vulnerability identifier: #VU52656
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1872
CWE-ID: CWE-399
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 improper management of internal resources within FaceTime when muting a CallKit call, which results in muting not being enabled while ringing. A remote attacker can eavesdrop on conversation.
Affected software
macOS
watchOS
iPadOS
Apple iOS
watchOS
iPadOS
Apple iOS
How to mitigate CVE-2021-1872
Install updates from vendor's website.
macOS - update to 11.3 20E232
watchOS - update to 7.4 18T195
iPadOS - update to 14.5 18E199
Apple iOS - update to 14.5 18E199
watchOS - update to 7.4 18T195
iPadOS - update to 14.5 18E199
Apple iOS - update to 14.5 18E199