ChromeWeb browser · Google
CVE-2018-17458
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 · uneditedAn improper update of the WebAssembly dispatch table in WebAssembly in Google Chrome prior to 69.0.3497.92 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.
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 confidenceThis is a use-after-free type vulnerability in Google Chrome's WebAssembly implementation where an improper update of the WebAssembly dispatch table allows a remote attacker to escape the sandbox and execute arbitrary code via a crafted HTML page.
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
< 69.0.3497.92
Enterprise Linux DesktopOperating system
= 6.0
Enterprise Linux ServerOperating system
= 6.0
Enterprise Linux WorkstationOperating system
= 6.0CVSS 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 Chrome version in the browserOpen a new tab and navigate to chrome://version - note the "Product Version" value shown at the top of the pageAffected if Product Version is less than 69.0.3497.92 (for example, 69.0.3497.81, 68.0.3440.106, etc.)
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Check Chrome version from command lineRun `google-chrome --version` or `chromium-browser --version` in a terminalAffected if The reported version is less than 69.0.3497.92
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Verify WebAssembly is in useThe vulnerability affects WebAssembly functionality - confirm that WebAssembly (wasm) is being used in your environment by checking if any internal or third-party web applications rely on WebAssembly modulesAffected if WebAssembly is actively used and the Chrome version is below 69.0.3497.92 (the vulnerability requires WebAssembly execution to be triggered)
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Check installed package version on Linux systemsOn Red Hat Enterprise Linux systems, run `rpm -q google-chrome` or `rpm -qa | grep chrome` to list the installed Chrome package versionAffected if The installed package version is lower than 69.0.3497.92-1 or the package is not found (indicating Chrome may not be installed)
You are affected if Google Chrome (or Chromium) version is less than 69.0.3497.92 AND your environment uses WebAssembly functionality.
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 data69.0.3497.92
Update Google Chrome to version 69.0.3497.92 or later. In enterprise environments, deploy the update via patch management and verify complete coverage across all endpoints.
Fix this in Chrome
Scoped from the published advisory
- 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-2018-17458 — 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-2018-17458 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
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