Use-after-free in Google Chromium - CVE-2021-4320
Published: July 20, 2021 / Updated: August 16, 2023
Vulnerability identifier: #VU79608
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-4320
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the Blink. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Affected software
Google Chromium
Google Chrome
Fedora
chromium
Google Chrome
Fedora
chromium
How to mitigate CVE-2021-4320
Update to version 92.0.4515.107.
Google Chromium - update to 92.0.4515.107
Google Chrome - update to 92.0.4515.107
chromium - update to 115.0.5790.170-1.fc38
Google Chrome - update to 92.0.4515.107
chromium - update to 115.0.5790.170-1.fc38