An out-of-bounds read was addressed with improved input validation. This issue is fixed in tvOS 13.3, watchOS 6.1.1, macOS Catalina 10.15.2, Security Update 2019-002 Mojave, and Security Update 2019-007 High Sierra, iOS 13.3 and iPadOS 13.3, iOS 12.4.4, watchOS 5.3.4. Processing malicious video via FaceTime may lead to arbitrary code execution.
https://support.apple.com/en-us/HT210785
https://support.apple.com/en-us/HT210787
https://support.apple.com/en-us/HT210788
https://support.apple.com/en-us/HT210789
Source: MITRE
Published: 2020-10-27
Updated: 2020-10-30
Type: CWE-125
Base Score: 9.3
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 8.6
Severity: HIGH
Base Score: 8.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.8
Severity: HIGH