CVE-2024-57509
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 · uneditedBuffer Overflow vulnerability in Bento4 mp42avc v.3bdc891602d19789b8e8626e4a3e613a937b4d35 allows a local attacker to execute arbitrary code via the AP4_File::ParseStream and related functions.
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 buffer overflow vulnerability exists in Bento4's mp42avc tool within the AP4_File::ParseStream function and related parsing code. A local attacker can exploit this by supplying a specially crafted MP4/AVC file that causes the buffer overflow during parsing, allowing arbitrary code execution with the privileges of the user running the tool.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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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Verify Bento4 mp42avc tool is installedLocate the mp42avc binary on the system using 'which mp42avc' on Linux/macOS or 'where mp42avc' on Windows. Check common installation paths such as /usr/bin/mp42avc, /usr/local/bin/mp42avc, or the Bento4 installation directory.Affected if The tool is not found on the system, meaning Bento4 is not installed or mp42avc is not in the system PATH.
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Determine the installed Bento4 versionRun 'mp42avc --version' or 'mp42avc -V' to display the version information. If the version flag is not supported, check the Bento4 library files or package that was installed.Affected if The version cannot be determined or is an unpatched release.
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Check for available Bento4 updatesConsult the official Bento4 release notes, GitHub repository, or package manager updates to identify the version that contains the fix for CVE-2024-57509.Affected if The installed version predates the patched release or no patch information is available.
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Identify untrusted MP4/AVC file processingReview any automated workflows, scripts, or scheduled tasks that use mp42avc to process MP4 files from untrusted sources, external users, or download locations.Affected if The tool processes files from untrusted or external sources without validation.
A user is affected if Bento4's mp42avc tool is installed and processes untrusted MP4/AVC files with an unpatched version of the software.
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 to a patched version of Bento4 when available. As a temporary measure, avoid processing untrusted MP4/AVC files with mp42avc and run the tool with least privilege. Input validation and bounds checking should be implemented in AP4_File::ParseStream and related stream parsing functions.
- Consultation2.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-57509 — 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-2024-57509 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
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