CVE-2016-3625
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 · uneditedtif_read.c in the tiff2bw tool in LibTIFF 4.0.6 and earlier allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted TIFF image.
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 confidenceAn out-of-bounds read vulnerability exists in tif_read.c within the tiff2bw tool of LibTIFF 4.0.6 and earlier. The vulnerability is triggered when processing a specially crafted TIFF image, leading to a denial of service condition due to the out-of-bounds 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<= 4.0.6CVSS 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
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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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Identify the installed LibTIFF versionRun 'tiffinfo -version' or check your package manager for the installed libtiff package version (e.g., dpkg -l libtiff, rpm -qi libtiff)Affected if The version returned is 4.0.6 or earlier, indicating the library is within the vulnerable range
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Verify tiff2bw tool is presentCheck if the tiff2bw binary exists on the system by running 'which tiff2bw' or locating it in common bin directoriesAffected if The tiff2bw tool is installed and accessible, meaning the vulnerable component is available for use
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Confirm TIFF processing workflow uses tiff2bwReview any automated workflows, scripts, or applications that process TIFF images to determine if tiff2bw is invoked, or manually run 'tiff2bw -h' to confirm the tool is operationalAffected if tiff2bw is actively used for converting TIFF images to black and white, making the out-of-bounds read triggerable
The environment is affected if LibTIFF version 4.0.6 or earlier is installed AND the tiff2bw tool is used to process untrusted TIFF images, as this combination allows the specially crafted input to trigger the out-of-bounds read in tif_read.c.
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 dataUpdate LibTIFF to version 4.0.7 or later which contains the bounds-checking fix for this vulnerability. If upgrading is not immediately feasible, consider input validation or sandboxing for TIFF processing.
- Consultation2.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-3625 — 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-2016-3625 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
- No weaponised exploit code, or anything meant to cause harm
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