ChromeWeb browser · Google

CVE-2018-6035

HIGH · 8.8 CVSS v3.0 Published 2018-09-25
Fix available
A fix is available. Upgrade to 64.0.3282.119 or later.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Insufficient policy enforcement in DevTools in Google Chrome prior to 64.0.3282.119 allowed a remote attacker to potentially leak user local file data via a crafted Chrome Extension.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Insufficient policy enforcement in Chrome DevTools allowed a malicious Chrome Extension to potentially access and leak user local file data. The vulnerability existed because the DevTools component did not properly restrict extension behavior when accessing local files, enabling a remote attacker who convinced a user to install a crafted extension to bypass security boundaries.

MitigationUpdate Google Chrome to version 64.0.3282.119 or later to obtain the patch. Additionally, enforce policies that restrict extension installation to trusted sources from the Chrome Web Store only, and educate users about the risks of installing unknown extensions.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
ChromeWeb browser
Affected:< 64.0.3282.119
Debian LinuxOperating system
Affected:= 8.0= 9.0
Enterprise Linux DesktopOperating system
Affected:= 6.0
Enterprise Linux ServerOperating system
Affected:= 6.0
Enterprise Linux WorkstationOperating system
Affected:= 6.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check Chrome version on Windows or Mac
    Open Chrome, click the three-dot menu > Help > About Google Chrome. The version number is displayed on that page.
    Affected if The version shown is earlier than 64.0.3282.119 (for example, 63.x.x.x or earlier)
  2. Check Chrome or Chromium version on Debian Linux
    Open a terminal and run: dpkg -l | grep -i chrom or rpm -q chromium-browser or google-chrome --version
    Affected if The version displayed is earlier than 64.0.3282.119
  3. Check Chrome version on Red Hat Enterprise Linux
    Open a terminal and run: rpm -q google-chrome or yum list installed | grep chrome
    Affected if The version displayed is earlier than 64.0.3282.119
  4. Check for untrusted extensions installed
    In Chrome, navigate to chrome://extensions, review the list of installed extensions. Verify that all extensions are from trusted sources (like the Chrome Web Store) and were intentionally installed.
    Affected if Any extension is installed that the user does not recognize or that comes from an unknown or untrusted source

A user is affected if their installed Chrome or Chromium version is lower than 64.0.3282.119 AND they have installed a malicious extension, though the version check alone is sufficient to determine exposure.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to 64.0.3282.119 or later
Fixed in 64.0.3282.119
Interim mitigation

Update Google Chrome to version 64.0.3282.119 or later to obtain the patch. Additionally, enforce policies that restrict extension installation to trusted sources from the Chrome Web Store only, and educate users about the risks of installing unknown extensions.

Fix this in Chrome Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing2.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,420
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,272.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2018-6035 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2018-6035 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data