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ChromeWeb browser · Google

CVE-2018-18352

MEDIUM · 6.5 CVSS v3.0 Published 2018-12-11
Fix available
A fix is available. Upgrade to 71.0.3578.80 or later.
See remediation →
72/100
Remediation priority · Elevated
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
Service works could inappropriately gain access to cross origin audio in Media in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to bypass same origin policy for audio content 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 confidence

Google Chrome before version 71.0.3578.80 contained a Same Origin Policy bypass in Media where service workers could inappropriately access cross-origin audio content. A remote attacker could exploit this by tricking a user into visiting a crafted HTML page, allowing them to read audio data from other origins.

MitigationUpdate Google Chrome to version 71.0.3578.80 or later. No other configuration or code changes are required as this is a browser-level vulnerability fix.

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:< 71.0.3578.80
Enterprise Linux DesktopOperating system
Affected:= 6.0
Enterprise Linux ServerOperating system
Affected:= 6.0
Enterprise Linux WorkstationOperating system
Affected:= 6.0
Debian LinuxOperating system
Affected:= 9.0

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
None
Availability
None

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

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 Google Chrome version
    Open Chrome, click the menu icon (three dots), select Help, then About Google Chrome. The version number will be displayed on the page that opens.
    Affected if The displayed version is earlier than 71.0.3578.80 (for example, 70.0.3588.99 or lower)
  2. Check Chromium version on Linux systems
    Open a terminal and run: google-chrome --version or chromium --version
    Affected if The reported version number is less than 71.0.3578.80
  3. Verify Chrome is the system default browser on RHEL 6.0
    On Redhat Enterprise Linux 6.0 systems, check if Google Chrome is installed as the primary browser. Run: which google-chrome or rpm -q google-chrome
    Affected if Chrome is installed on RHEL 6.0 and the version is below 71.0.3578.80
  4. Check browser version on Debian 9.0
    On Debian Linux 9.0 systems, run: dpkg -l | grep google-chrome or apt list --installed | grep chrome
    Affected if Google Chrome is present on Debian 9.0 with a version lower than 71.0.3578.80

You are affected if Google Chrome or Chromium is installed and its version number is less than 71.0.3578.80, regardless of operating system.

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 71.0.3578.80 or later
Fixed in 71.0.3578.80
Interim mitigation

Update Google Chrome to version 71.0.3578.80 or later. No other configuration or code changes are required as this is a browser-level vulnerability fix.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,600. Get the upgrade done

Scan for this in your stack

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dbcve dependency scanner

Check whether your project pulls in CVE-2018-18352 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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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-2018-18352 in production — separate from our analysis above.

No notes yet

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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