CVE-2019-2169
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 · uneditedIn libxaac there is a possible information disclosure due to uninitialized data. This could lead to information disclosure with no additional execution privileges needed. User interaction is needed for exploitation. Product: AndroidVersions: Android-10Android ID: A-118492282
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 confidenceIn libxaac (an AAC audio decoding library used in Android), uninitialized data can be disclosed to an attacker. This occurs when memory is not properly initialized before use, potentially exposing sensitive information from memory. The vulnerability requires user interaction to trigger, likely through a specially crafted audio file processed by the library.
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= 10.0CVSS 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
- 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 checksWork through these to decide whether this CVE applies to you.
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Verify Android version is 10.0Check the device settings under Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADBAffected if The device is running Android version 10.0 exactly (Android Q)
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Confirm libxaac library is presentCheck if /system/lib64/libxaac.so or /system/lib/libxaac.so exists on the device using ADB command: 'adb shell ls -la /system/lib*/libxaac.so'Affected if The libxaac library file exists on the device, indicating the library is installed as part of the system firmware
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Check libxaac library versionRun 'adb shell dumpsys package com.android.providers.media' or inspect the library file metadata using 'adb shell dumpsys media.audio_flinger' to identify the library version if exposedAffected if The library version cannot be directly determined on consumer devices, but the mere presence of libxaac on Android 10.0 indicates potential exposure to the vulnerability
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Identify audio processing pathwaysDetermine if any apps or system services process AAC audio files (common in media players, browsers, messaging apps). Check which apps have permission to access media and audio librariesAffected if Any application or system service that processes untrusted AAC audio files using libxaac can trigger the uninitialized memory disclosure when a specially crafted file is played or processed
A device is affected if it runs Android 10.0 and contains the libxaac library, with the vulnerability triggered when processing a specially crafted AAC audio file through any app using the library.
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 dataApply vendor-provided patches for Android-10 that include proper memory initialization in libxaac. Users should apply system updates promptly to receive the fix.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-2169 — 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-2019-2169 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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- 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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