CVE-2021-34312
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 has been identified in JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The Tiff_loader.dll library in affected applications lacks proper validation of user-supplied data when parsing TIFF files. This could result in an out of bounds write past the fixed-length heap-based buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13353)
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 confidenceThe Tiff_loader.dll library in JT2Go and Teamcenter Visualization lacks proper validation of user-supplied data when parsing TIFF files, leading to an out-of-bounds write past a fixed-length heap-based buffer. An attacker can exploit this by tricking a user into opening a specially crafted malicious TIFF file, achieving code execution in the context of the current process.
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< 13.2.0< 13.2.0CVSS 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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Identify installed product and versionOpen the application and navigate to Help > About, or locate the application executable (JT2Go.exe or Teamcenter Visualization executable) and check its file properties for version informationAffected if The version shown is below 13.2.0 (for example, 13.1.x or earlier)
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Locate Tiff_loader.dll in the application directorySearch the installation folder of JT2Go or Teamcenter Visualization for a file named Tiff_loader.dll. Right-click the file and select Properties to view its version informationAffected if The DLL exists in the installation directory, indicating the vulnerable component is present
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Check Tiff_loader.dll file versionIn the DLL's Properties window, look at the File Version field on the Details tabAffected if The file version is not V13.2.0 or later, or no version information is available for the DLL
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Verify application can process TIFF filesAttempt to open any TIFF file through the application, or check if TIFF file associations are registeredAffected if The application can load TIFF files, meaning the vulnerable parsing code path is reachable
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Compare against known affected versionsDocument the exact version numbers found for both the main application and Tiff_loader.dll, then compare them to the vulnerable range (anything below 13.2.0)Affected if Either the application version or the DLL version is below 13.2.0, indicating the vulnerable code is present
If JT2Go or Teamcenter Visualization is installed with a version below 13.2.0 and the Tiff_loader.dll component is present, the environment is affected by this CVE.
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 data13.2.0
Upgrade JT2Go and Teamcenter Visualization to version V13.2 or later to obtain the patched Tiff_loader.dll library.
- Consultation4.0 h
- Implementation8.0 h
- Testing12.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-34312 — 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-2021-34312 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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