CVE-2018-6120 Integer overflow in Chrome

What is CVE-2018-6120?

CVE-2018-6120 is a high-severity vulnerability in Debian Debian Linux, published on 9 Jan 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

An integer overflow that could lead to an attacker-controlled heap out-of-bounds write in PDFium in Google Chrome prior to 66.0.3359.170 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file.

Weakness: CWE-787, CWE-190

Which versions are affected by CVE-2018-6120?

It affects 5 products.

Products include Debian Debian Linux, Google Chrome, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

How do I fix CVE-2018-6120?

Upgrade to a fixed version.

Is CVE-2018-6120 being exploited?

There is no known exploitation of CVE-2018-6120 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-qghg-7q9w-3w7w, UBUNTU-CVE-2018-6120.