NULL pointer dereference in macOS - CVE-2021-30698
Published: May 24, 2021
Vulnerability identifier: #VU53503
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-30698
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in webRTC. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Affected software
macOS
iPadOS
Apple iOS
Apple Safari
iPadOS
Apple iOS
Apple Safari
How to mitigate CVE-2021-30698
Install updates from vendor's website.
macOS - update to 11.4 20F71
Apple Safari - update to 14.1.1
iPadOS - update to 14.6 18F72
Apple iOS - update to 14.6 18F72
Apple Safari - update to 14.1.1
iPadOS - update to 14.6 18F72
Apple iOS - update to 14.6 18F72