dbcve.org
AndroidOperating system · Google

CVE-2024-27227

CRITICAL · 9.8 CVSS v3.1 Published 2024-03-11
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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
A malicious DNS response can trigger a number of OOB reads, writes, and other memory issues

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 · moderate confidence

A vulnerability in DNS response parsing allows malicious DNS responses to trigger out-of-bounds (OOB) reads and writes, leading to memory corruption that could enable remote code execution.

MitigationApply vendor patches immediately; if unavailable, restrict network exposure of affected DNS services and implement DNS response validation at perimeter defenses.

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
AndroidOperating system
Affected:all versions

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
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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. Verify the operating system is Google Android
    Run 'getprop ro.build.fingerprint' or check /system/build.prop for 'ro.build.fingerprint' containing 'android' or inspect /proc/version for Android kernel markers
    Affected if The system runs Google Android OS (any version)
  2. Confirm DNS resolver component is enabled
    Check if DNS resolution is active by testing network connectivity (e.g., ping or nslookup) or inspect system DNS settings in /system/etc/resolv.conf
    Affected if DNS resolution functionality is present and active on the device
  3. Identify the Android build version
    Run 'getprop ro.build.version.release' or 'getprop ro.build.version.sdk' to retrieve the Android version number
    Affected if Any Android version is returned, confirming the device runs Google Android (all versions affected per CVE)
  4. Check for DNS service exposure
    Review network configuration to determine if the device's DNS resolver is exposed to untrusted networks (e.g., check firewall rules, network interfaces)
    Affected if The device processes DNS responses from network sources, which is the default behavior on Android

If the device runs Google Android OS and processes DNS responses, it is affected by this vulnerability since all Android versions are impacted.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor patches immediately; if unavailable, restrict network exposure of affected DNS services and implement DNS response validation at perimeter defenses.

Fix this in Android Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing12.0 h
  • Review / QA8.0 h
44.0 hours of engineering $7,720
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Scan for this in your stack

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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-2024-27227 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