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AndroidOperating system · Google

CVE-2019-9334

MEDIUM · 6.5 CVSS v3.1 Published 2019-09-27
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
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
In libhevc there is a possible information disclosure due to uninitialized data. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation. Product: AndroidVersions: Android-10Android ID: A-112859934

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

In libhevc (HEVC video codec library for Android), there is a possible information disclosure vulnerability due to uninitialized data being read and disclosed. When processing video data, certain data structures are not properly initialized before being accessed, potentially leaking memory contents to an attacker who provides a specially crafted video file.

MitigationApply Android security updates for Android-10 that include the libhevc patch (Android ID: A-112859934). If using a custom integration of libhevc, ensure all data structures are properly zero-initialized before use and review the library for other uninitialized variable issues.

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:= 10.0

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:3.1/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 Android version
    Navigate to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADB shell
    Affected if Version equals 10.0 exactly
  2. Locate libhevc library on device
    Run 'find /system -name libhevc* 2>/dev/null' or 'ls -la /system/lib*/libhevc*' via ADB shell to find the library files
    Affected if libhevc library files exist in the system partition
  3. Confirm HEVC video processing capability
    Check if any video player or codec application on the device supports HEVC/H.265 decoding, or verify via 'dumpsys media.codec' command
    Affected if HEVC decoding is available or enabled on the device

The device is affected if it runs Android 10.0 and includes the libhevc library for HEVC video processing.

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 Android security updates for Android-10 that include the libhevc patch (Android ID: A-112859934). If using a custom integration of libhevc, ensure all data structures are properly zero-initialized before use and review the library for other uninitialized variable issues.

Fix this in Android Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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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-2019-9334 in production — separate from our analysis above.

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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