CVE-2022-39882
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 · uneditedHeap overflow vulnerability in sflacf_fal_bytes_peek function in libsmat.so library prior to SMR Nov-2022 Release 1 allows local attacker to execute arbitrary code.
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 confidenceHeap buffer overflow vulnerability in the sflacf_fal_bytes_peek function within the libsmat.so library allows a local attacker to corrupt heap memory and potentially execute arbitrary code. The flaw exists in versions prior to the SMR November 2022 Release 1 update.
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= 10.0= 11.0= 12.0CVSS 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
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/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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Identify Android versionCheck Settings > About Phone > Android version or run 'getprop ro.build.version.release' via ADB shellAffected if Version is 10.0, 11.0, or 12.0
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Locate libsmat.so librarySearch for libsmat.so on the device using 'find / -name libsmat.so 2>/dev/null' via ADB shell or check common paths like /system/lib64/ or /vendor/lib64/Affected if The library file exists on the device
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Determine libsmat.so versionRun 'getprop ro.build.version.security_patch' to check the security patch level, or use 'dumpsys package' if the library exposes version info, or compare against Samsung's SMR November 2022 patch dateAffected if Security patch level is earlier than November 2022 or version cannot be determined
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Verify FLAC audio processing is accessibleCheck if the device can process FLAC audio files or if sflacf-related services are running via 'ps -A | grep -i sflacf' or inspect /proc/mounts for related mountsAffected if FLAC processing functionality is present and accessible to local applications
The device is affected if it runs Android 10, 11, or 12 with libsmat.so present and has a security patch level before the November 2022 update.
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 SMR November 2022 Release 1 or later patch to update the libsmat.so library and remediate the heap overflow vulnerability.
SMR Nov-2022 Release 1 (November 2022 Security Patch Level)
- Go to Settings on the Samsung Android device
- Navigate to Software Update
- Tap on Download and install to check for the November 2022 security update
- Install the SMR Nov-2022 Release 1 or later security patch
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-2022-39882 — 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-2022-39882 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