CVE-2009-0475
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 · uneditedInteger underflow in the Huffman decoding functionality (pvmp3_huffman_parsing.cpp) in OpenCORE 2.0 and earlier allows remote attackers to cause a denial of service (process crash) and possibly execute arbitrary code via a crafted MP3 file that triggers heap corruption.
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 confidenceInteger underflow in the Huffman decoding routine (pvmp3_huffman_parsing.cpp) in OpenCORE 2.0 and earlier allows crafted MP3 files to trigger heap corruption, potentially enabling arbitrary code execution.
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= 2.0CVSS 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
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:M/Au:N/C:P/I:P/A:P
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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Locate the OpenCORE library installationSearch system directories for library files associated with OpenCORE (e.g., libopencore*.so or similar naming patterns)Affected if The OpenCORE library is present on the system
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Determine the version of the installed OpenCOREUse version inspection tools or examine library metadata to identify the OpenCORE version numberAffected if The installed version is 2.0 or earlier
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Verify presence of the vulnerable MP3 Huffman decoder componentCheck for the existence of MP3 decoding modules within the OpenCORE library or associated filesAffected if The MP3 Huffman decoding component is included in the installation
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Confirm active use of MP3 processing functionalityIdentify if applications or services on the system utilize OpenCORE for decoding MP3 audio filesAffected if The system processes MP3 files using OpenCORE
The environment is affected if OpenCORE version 2.0 or earlier is present, the MP3 decoder component is enabled, and the system processes MP3 files.
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 dataAvoid processing untrusted MP3 files; obtain and apply any vendor patches for OpenCORE; implement strict input validation on MP3 stream data before passing to the Huffman decoder.
- Consultation2.0 h
- Implementation4.0 h
- Testing4.0 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 $3,328.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2009-0475 — 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-2009-0475 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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