CVE-2018-6056 Memory corruption in Chrome

What is CVE-2018-6056?

CVE-2018-6056 is a high-severity memory corruption 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

Type confusion could lead to a heap out-of-bounds write in V8 in Google Chrome prior to 64.0.3282.168 allowing a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.

Weakness: CWE-704

Which versions are affected by CVE-2018-6056?

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-2018-6056?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2018-6056 being exploited?

There is no known exploitation of CVE-2018-6056 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-9w6g-vm3j-6hg4, RHSA-2018:0334, UBUNTU-CVE-2018-6056, openSUSE-SU-2018:0453-1, openSUSE-SU-2018:0454-1.