AndroidOperating system · Google

CVE-2017-18664

HIGH · 7.5 CVSS v3.1 Published 2020-04-07
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
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
An issue was discovered on Samsung mobile devices with KK(4.4), L(5.0/5.1), and M(6.0) software. There is a NULL pointer exception in PersonManager, causing memory corruption. The Samsung ID is SVE-2017-8286 (June 2017).

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 NULL pointer exception in the PersonManager component on Samsung mobile devices running Android KK(4.4), L(5.0/5.1), and M(6.0) leads to memory corruption. This type of vulnerability can potentially be exploited for denial of service or possibly code execution depending on memory layout and device specifics.

MitigationApply the Samsung security update (SVE-2017-8286, June 2017) to affected devices, or restrict use of PersonManager-related functionality on unpatched devices until firmware updates can be deployed.

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:= 4.4= 5.0= 5.1= 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
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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. Confirm device manufacturer
    Check if the device is a Samsung mobile device by reviewing the device settings or using 'getprop' command to query ro.product.manufacturer
    Affected if Device is not made by Samsung, this specific vulnerability does not apply
  2. Identify Android version
    Check the Android OS version in Settings > About Phone or run 'getprop ro.build.version.release'
    Affected if Version is 4.4, 5.0, 5.1, or 6.0 - only these specific versions are affected
  3. Verify PersonManager component presence
    Check for the PersonManager service by examining /system/framework/ directory for personmanager.jar or by attempting to query the service via 'dumpsys' command
    Affected if PersonManager component exists and is accessible on the device
  4. Check for Samsung security patch level
    Review the Samsung security update status in Settings > About Phone > Security patch level or use 'getprop ro.build.version.security_patch'
    Affected if Security patch level is earlier than June 2017 (SVE-2017-8286)

Device is affected if it is a Samsung mobile device running Android 4.4, 5.0, 5.1, or 6.0 with the PersonManager component present and no June 2017 or later Samsung security update applied.

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 the Samsung security update (SVE-2017-8286, June 2017) to affected devices, or restrict use of PersonManager-related functionality on unpatched devices until firmware updates can be deployed.

Fix this in Android Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
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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-2017-18664 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