CVE-2019-9297
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 libAACdec, there is a possible out of bounds write due to an integer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is needed for exploitation. Product: AndroidVersions: Android-10Android ID: A-112890242
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 confidenceIn libAACdec (Android's AAC audio decoder), an integer overflow vulnerability exists that can lead to an out-of-bounds write. An attacker could exploit this by crafting a malicious AAC audio file that, when processed by the decoder, triggers the integer overflow to write beyond allocated buffer boundaries, achieving remote code execution. User interaction is required (e.g., playing a malicious audio file).
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
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 checksWork through these to decide whether this CVE applies to you.
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Verify Android versionCheck the device Android version in Settings > About Phone > Android version. Use command: `getprop ro.build.version.release`Affected if The version is exactly 10.0 (Android 10) - this is the only affected version per vendor advisory
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Confirm AAC decoding capabilityCheck if the device can process AAC audio files. Look for libAACdec or aac decoder libraries in /system/lib/ or verify MediaCodec support for audio/aac MIME typeAffected if The libAACdec library is present and AAC audio decoding is enabled on the device
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Identify untrusted AAC processing riskAudit installed applications that handle AAC audio files (media players, messaging apps, browsers). Review app permissions for audio/media accessAffected if Applications that process AAC audio from untrusted sources (e.g., downloaded files, message attachments) are installed and active
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Check for available security patchesReview Settings > Security patch level or run `getprop ro.build.version.security_patch` to identify installed patch levelAffected if Security patch level is earlier than the vendor fix (A-112890242) for Android 10
A user is affected if running Android 10.0 with an unpatched system and processing a malicious crafted AAC audio file through the vulnerable libAACdec decoder.
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 the vendor patch for Android-10 (A-112890242) via system update. Until patched, avoid processing untrusted or unknown AAC audio files from untrusted sources.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,960.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-9297 — 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-2019-9297 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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