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FfmpegApplication

CVE-2016-7450

HIGH · 7.8 CVSS v3.0 Published 2016-12-23
Fix available
A fix is available. Upgrade to after 3.1.3 or later.
See remediation →
81/100
Remediation priority · High
No privileges

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 · unedited
The ff_log2_16bit_c function in libavutil/intmath.h in FFmpeg before 3.1.4 is vulnerable to reading out-of-bounds memory when it decodes a malformed AIFF file.

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 confidence

The ff_log2_16bit_c function in libavutil/intmath.h in FFmpeg before version 3.4.1 contains an out-of-bounds memory read vulnerability when parsing malformed AIFF audio files. An attacker can trigger this vulnerability by providing a specially crafted AIFF file that causes the log2 lookup function to read beyond allocated buffer boundaries, potentially leaking sensitive memory contents.

MitigationUpgrade FFmpeg to version 3.1.4 or later, which contains the fix for this vulnerability. Alternatively, implement input validation on AIFF files before processing to reject malformed files.

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
FfmpegApplication
Affected:<= 3.1.3

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
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/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 checks

Work through these to decide whether this CVE applies to you.

  1. Check installed FFmpeg version
    Run 'ffmpeg -version' or 'ffmpeg -version 2>&1 | head -1' to see the version number
    Affected if Version is 3.1.3 or lower, or any version before 3.4.1
  2. Verify AIFF format support is compiled in
    Run 'ffmpeg -formats 2>&1 | grep -i aiff' to see if AIFF demuxer is available in the build
    Affected if AIFF format is listed as supported and available for use
  3. Identify libavutil version if building from source
    Check the libavutil/version.h header file or examine the shared library with 'ls -la' and 'strings' commands for the version string
    Affected if Linked libavutil version corresponds to FFmpeg 3.1.3 or lower
  4. Confirm AIFF file processing in your workflow
    Review any scripts, applications, or services that process audio files and check if they handle .aiff or .aif file extensions
    Affected if Your environment processes AIFF audio files using the affected FFmpeg version

You are affected if you are running FFmpeg version 3.1.3 or lower AND your environment processes AIFF audio files, as the vulnerability triggers when parsing malformed AIFF files.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Upgrade available Upgrade to a release after 3.1.3
Interim mitigation

Upgrade FFmpeg to version 3.1.4 or later, which contains the fix for this vulnerability. Alternatively, implement input validation on AIFF files before processing to reject malformed files.

Fix this in Ffmpeg Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,040
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2016-7450 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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
  • No spam, self-promotion, credentials, or personal data