CVE-2014-125011
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 · uneditedA vulnerability was found in FFmpeg 2.0. It has been declared as problematic. Affected by this vulnerability is the function decode_frame of the file libavcodec/ansi.c. The manipulation leads to integer coercion error. The attack can be launched remotely. It is recommended to apply a patch to fix this issue.
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 vulnerability in FFmpeg 2.0's libavcodec/ansi.c file, specifically in the decode_frame function, contains an integer coercion error. This type of flaw occurs when integer values are improperly cast or converted between different integer types, potentially leading to unexpected behavior such as buffer overflows or incorrect memory access.
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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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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Confirm FFmpeg installationRun 'ffmpeg -version' or check for the binary at /usr/bin/ffmpegAffected if FFmpeg is not installed or not found on the system
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Identify installed FFmpeg versionExecute 'ffmpeg -version' and parse the version number from the outputAffected if The version displayed is exactly 2.0
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Verify libavcodec component existsCheck for the presence of libavcodec library files (typically in /usr/lib/ or /usr/local/lib/)Affected if libavcodec is missing or not linked properly
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Check if ANSI decoder module is availableRun 'ffmpeg -codecs 2>/dev/null | grep -i ansi' to list decoders and look for ANSI supportAffected if The ANSI decoder is listed as available (vulnerable code path exists)
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Inspect decode_frame function in ansi.cIf source code is available, review libavcodec/ansi.c for integer type handling in decode_frame function around line 350-400 where height/width calculations occurAffected if Integer coercion issues are present in the source code without the fix
The system is affected only if FFmpeg version 2.0 is installed and the ANSI video decoder is being used to process maliciously crafted ANSI-encoded video 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 dataApply the official patch for this vulnerability in FFmpeg 2.0, focusing on correcting integer type handling in the decode_frame function of libavcodec/ansi.c to prevent potential exploitation.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
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Free · runs locallyCheck whether your project pulls in CVE-2014-125011 — 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-2014-125011 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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