CVE-2012-2774
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 ff_MPV_frame_start function in libavcodec/mpegvideo.c in FFmpeg before 0.11 allows remote attackers to cause a denial of service (memory corruption) via unspecified vectors, related to starting "a frame outside SETUP state."
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 confidenceMemory corruption vulnerability in FFmpeg's libavcodec/mpegvideo.c where the ff_MPV_frame_start function fails to validate proper state before starting an MPEG video frame, allowing a frame to be initiated outside the required SETUP state, leading to memory corruption and denial of service.
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<= 0.10.4= 0.3= 0.3.1= 0.3.2= 0.3.3= 0.3.4= 0.4.0= 0.4.2= 0.4.3= 0.4.4= 0.4.5= 0.4.6CVSS 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
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/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 FFmpeg installation versionRun 'ffmpeg -version' to display the installed FFmpeg version numberAffected if Version is 0.3.x through 0.10.4, or any version <= 0.10.4 (including 0.3, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.4.0, 0.4.2, 0.4.3, 0.4.4, 0.4.5, 0.4.6)
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Check libavcodec library versionRun 'ffmpeg -version 2>&1 | grep libavcodec' or check /usr/lib/libavcodec.so* version to identify the library versionAffected if libavcodec version matches the affected FFmpeg version range 0.3 through 0.10.4
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Identify if MPEG video decoding is in useInspect running processes or logs for ffmpeg/ffprobe commands processing .mpg, .mpeg, .m2v, or other MPEG video format inputsAffected if MPEG video files are being decoded using the affected libavcodec library
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Verify ff_MPV_frame_start function is reachableIf using FFmpeg as a library, check the libavcodec/mpegvideo.c is compiled and the mpegvideo decoder is enabled in the buildAffected if The mpegvideo decoder module is loaded and processes video frames
You are affected if your installed FFmpeg or libavcodec version falls within 0.3 through 0.10.4 and you decode MPEG video content.
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 to FFmpeg version 0.11 or later, which contains the fix for proper state validation in the MPEG video decoder.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-2774 — 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-2012-2774 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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