Input validation error in Google Chrome - CVE-2021-21123

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU49702

Input validation error in Google Chrome - CVE-2021-21123

Published: January 19, 2021 / Updated: March 30, 2021


Vulnerability identifier: #VU49702
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-21123
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper input validation in File System API in Google Chrome. A remote attacker can trick the victim to visit a specially crafted webpage and execute arbitrary code on the system.


Affected software

Google Chrome
Microsoft Edge
Arch Linux
Gentoo Linux
Fedora
chromium (Debian package)
chromium

How to mitigate CVE-2021-21123

Update to version 88.0.4324.96.

Google Chrome - update to 88.0.4324.96
chromium (Debian package) - update to 88.0.4324.146-1~deb10u1
Microsoft Edge - update to 88.0.705.50
chromium - addressed in versions 88.0.4324.96-1.el7, 88.0.4324.96-1.el8, 88.0.4324.96-1.fc32, 88.0.4324.96-1.fc33, 88.0.4324.150-1.el7, 88.0.4324.150-1.el8

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins