Out-of-bounds read in watchOS - CVE-2020-27909
Published: November 6, 2020 / Updated: March 31, 2021
Vulnerability identifier: #VU48179
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-27909
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the CoreAudio subsystem when processing MP4 media files. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
Affected software
watchOS
tvOS
iPadOS
Apple iOS
tvOS
iPadOS
Apple iOS
How to mitigate CVE-2020-27909
Install updates from vendor's website.
watchOS - update to 7.1 18R590
tvOS - update to 14.2 18K57
iPadOS - update to 14.2 18B92
Apple iOS - update to 14.2 18B92
tvOS - update to 14.2 18K57
iPadOS - update to 14.2 18B92
Apple iOS - update to 14.2 18B92