CVE-2024-20011
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 alac decoder, there is a possible information disclosure due to an incorrect bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS08441146; Issue ID: ALPS08441146.
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 confidenceA bounds check error in the ALAC (Apple Lossless Audio Codec) decoder allows an attacker to read beyond allocated buffer boundaries, potentially exposing sensitive memory contents and enabling remote code execution. The vulnerability is exploitable network-wise without requiring any user interaction or elevated privileges.
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= 11.0= 12.0= 13.0CVSS 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
- 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 checksWork through these to decide whether this CVE applies to you.
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Check Android OS versionGo to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADB shellAffected if Version is 11.0, 12.0, or 13.0 exactly (the affected versions)
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Verify ALAC decoder component presenceCheck for the alac decoder library by running 'find /system -name *alac*' or 'ls -la /system/lib*/libalac*' via ADB shellAffected if The libalac.so library exists in /system/lib or /system/lib64 directory
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Confirm media framework uses ALACCheck if any installed apps or system services reference the ALAC codec by searching logcat for 'ALAC' during media playback, or check /etc/media_codecs.xml via ADBAffected if ALAC is listed as an enabled decoder in media_codecs.xml or is actively used by media components
User is affected if running Android 11.0, 12.0, or 13.0 AND the libalac decoder component is present and active on the device
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.
dbcve · scopedApply the vendor patch (ALPS08441146) to update the affected alac decoder component. If no patch is available, consider disabling or replacing the affected decoder until a fix is provided.
- Check for system updates on your Android device and install any available security updates immediately
- Contact your device manufacturer (e.g., Xiaomi, Oppo, Vivo, Realme) to confirm if the MediaTek patch ALPS08441146 has been incorporated into your device's firmware
- If your device manufacturer has released an update containing the MediaTek security patch, flash the update following the manufacturer's recommended procedure
- Verify the patch has been applied by checking Android Security Patch Level in Settings > About Phone > Software Information
- If no update is available from your manufacturer, consider upgrading to a device that receives regular security updates
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,096.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-20011 — 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-2024-20011 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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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.
- 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