CVE-2018-6031
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 · uneditedUse after free in PDFium in Google Chrome prior to 64.0.3282.119 allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file.
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 confidenceUse-after-free vulnerability in PDFium allows a remote attacker to potentially exploit heap corruption via a crafted PDF file opened in Google Chrome versions prior to 64.0.3282.119.
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< 64.0.3282.119= 6.0= 6.0= 6.0= 8.0= 9.0CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Check if Google Chrome is installedOn Windows: Look for Chrome in Program Files or check Start menu. On Linux: Run 'which google-chrome' or check for package with 'dpkg -l | grep chrome' (Debian) or 'rpm -qa | grep chrome' (RHEL).Affected if Chrome browser is present on the system
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Determine installed Chrome version on WindowsOpen Chrome, click menu > Help > About Google Chrome, or run 'google-chrome --version' from command line.Affected if Version shown is less than 64.0.3282.119
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Determine installed Chrome version on Debian LinuxRun 'dpkg -l | grep google-chrome' or 'apt show google-chrome-stable' to see installed package version.Affected if Version number displayed is earlier than 64.0.3282.119
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Determine installed Chrome version on RHEL/CentOS LinuxRun 'rpm -qa | grep google-chrome' to list installed Chrome packages, or 'yum info google-chrome-stable' if available.Affected if Version number shown is earlier than 64.0.3282.119
Your environment is affected if Google Chrome is installed and the running version is earlier than 64.0.3282.119.
Generated from the published advisory. Verify against your own configuration.
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 data64.0.3282.119
Update Google Chrome to version 64.0.3282.119 or later through standard software update or patch management deployment.
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,424.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-6031 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2018-6031 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- 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