CVE-2015-8219
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 · uneditedThe init_tile function in libavcodec/jpeg2000dec.c in FFmpeg before 2.8.2 does not enforce minimum-value and maximum-value constraints on tile coordinates, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted JPEG 2000 data.
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 confidenceA bounds checking vulnerability exists in the init_tile function within FFmpeg's JPEG 2000 decoder (libavcodec/jpeg2000dec.c). The function fails to validate tile coordinate values against minimum and maximum constraints, allowing malformed JPEG 2000 input to trigger out-of-bounds array access, resulting in denial of service or potential 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<= 2.8.1CVSS 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
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/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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Check if FFmpeg is installedRun 'ffmpeg -version' or 'ffmpeg' without arguments to see if the binary exists and returns version informationAffected if FFmpeg is not installed or not accessible in PATH
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Identify the installed FFmpeg versionExecute 'ffmpeg -version' and parse the version number from the output (format typically: ffmpeg version X.Y.Z)Affected if The version number is 2.8.1 or lower (e.g., 2.8.0, 2.7.x, 2.6.x, etc.)
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Verify libavcodec component is presentRun 'ffmpeg -formats' or check for the libavcodec library file in system directories (e.g., /usr/lib/libavcodec.so or similar)Affected if libavcodec is not available or missing from the FFmpeg build
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Confirm JPEG 2000 decoding support existsRun 'ffmpeg -decoders' and search for 'jpeg2000' in the output, or test with 'ffmpeg -i input.j2k -f null - 2>&1' with a sample JPEG 2000 fileAffected if No jpeg2000 decoder is listed or JPEG 2000 files cannot be decoded
A system is affected if FFmpeg version 2.8.1 or lower is installed with libavcodec and JPEG 2000 decoding support enabled, as the init_tile function in jpeg2000dec.c lacks proper tile coordinate validation.
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 dataUpgrade FFmpeg to version 2.8.2 or later which includes proper tile coordinate validation in the init_tile function. For systems where upgrade is not immediately feasible, consider input validation at the application layer to reject malformed JPEG 2000 files before processing.
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-8219 — 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-2015-8219 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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- Version or environment caveats, and links to real fixes
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