Improper Resource Locking in macOS - CVE-2021-1861
Published: April 27, 2021
Vulnerability identifier: #VU52670
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2021-1861
CWE-ID: CWE-413
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apple Inc.
Affected software:
macOS
macOS
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to the way cache occupancy is handled in Safari on macOS. A remote attacker can track users on the internet by setting state in a cache.
How to mitigate CVE-2021-1861
Install updates from vendor's website.