Heap-based buffer overflow in Google Chrome - CVE-2018-6120

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Main Vulnerability Database Vulnerabilities #VU12579

Heap-based buffer overflow in Google Chrome - CVE-2018-6120

Published: May 11, 2018 / Updated: June 11, 2021


Vulnerability identifier: #VU12579
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-2018-6120
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to heap-based buffer overflow in PDFium when handling malicious input. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code withe elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Affected software

Google Chrome
Gentoo Linux
Debian Linux
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Fedora
SUSE Linux
Opensuse
chromium

How to mitigate CVE-2018-6120

Update to version 66.0.3359.170.

Google Chrome - update to 66.0.3359.170
chromium - addressed in versions 66.0.3359.181-2.fc27, 66.0.3359.181-2.fc28, 66.0.3359.181-3.el7, 67.0.3396.79-1.el7

External References

Related Security Bulletins