CVE-2023-43555
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 · uneditedInformation disclosure in Video while parsing mp2 clip with invalid section length.
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 confidenceThis is an information disclosure vulnerability in the video parsing subsystem. When parsing MPEG-2 (mp2) video clips, the parser fails to properly validate section length values, allowing a specially crafted malformed mp2 file to read beyond allocated buffer boundaries and disclose sensitive memory contents.
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 dataall versionsall versionsall versionsall versionsall versionsall versionsall versionsall versionsCVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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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Identify the Qualcomm chipset modelCheck the system firmware or hardware information (e.g., via 'cat /proc/cpuinfo', 'dmesg', or vendor documentation) to determine the exact Qualcomm chipset in useAffected if The chipset matches one of the affected models: Aqt1000, Fastconnect 6200/6700/6800/6900/7800, Msm8996au, or Qam8295p
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Check firmware versionRetrieve the firmware version string for the identified chipset (typically found in /lib/firmware, /etc/firmware, or via 'fw_printenv' or vendor-specific tools)Affected if The firmware version is any version (all versions are affected per the CVE)
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Verify MPEG-2 (mp2) video parsing is in useCheck if the system has any video playback, transcoding, or media processing functionality that could parse mp2 files. Look for video player applications, FFmpeg/libavcodec usage, or media server processesAffected if The system processes MPEG-2 video files (mp2 format) through its video parsing subsystem
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Inspect video parser configurationExamine the video parser or media framework configuration files and logs for any mp2 demuxer/parser module being loaded or invokedAffected if An mp2 video parser module is actively loaded or configured on the system
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Monitor for malformed mp2 file handlingReview system logs, video player logs, or kernel messages (dmesg, journalctl) for any errors or warnings related to section length validation during mp2 playback or processingAffected if Logs show errors about buffer overruns, memory access violations, or section length issues when playing mp2 files
The system is affected if it runs any of the listed Qualcomm firmware versions and processes MPEG-2 (mp2) video files through the video parsing subsystem.
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 dataUpdate video parsing libraries to include proper bounds checking on section lengths before reading data, and reject mp2 clips with invalid section length values during the parsing phase.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-43555 — 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-2023-43555 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