CVE-2017-14294
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 · uneditedSTDU Viewer 1.6.375 allows attackers to execute arbitrary code or cause a denial of service via a crafted .jb2 file, related to a "User Mode Write AV starting at STDUJBIG2File!DllUnregisterServer+0x000000000000566e."
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 confidenceSTDU Viewer 1.6.375 contains a memory corruption vulnerability in its JBIG2 image file parsing component. When processing a specially crafted .jb2 file, the application triggers a User Mode Write Access Violation at STDUJBIG2File!DllUnregisterServer+0x566e, which can be exploited for arbitrary code execution or cause 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= 1.6.375CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/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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Locate STDU Viewer installationCheck common installation directories such as C:\Program Files\STDU Viewer or C:\Program Files (x86)\STDU Viewer, or search for 'STDU Viewer' in Add/Remove Programs.Affected if STDU Viewer is found on the system
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Identify STDU Viewer executable versionRight-click on STDU Viewer.exe, select Properties, then navigate to the Details tab to view the File Version. Alternatively, use a PowerShell command: Get-ItemProperty 'C:\Program Files\STDU Viewer\STDU Viewer.exe' | Select-Object -ExpandProperty VersionInfoAffected if The file version is reported as 1.6.375
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Confirm JBIG2 parsing component existsCheck for the presence of STDUJBIG2File.dll in the STDU Viewer installation directory (typically in the same folder as STDU Viewer.exe).Affected if STDUJBIG2File.dll is present in the installation folder
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Verify ability to open JBIG2 filesAttempt to open any .jb2 file using STDU Viewer, or check file associations for .jb2 extension pointing to STDU Viewer.Affected if STDU Viewer is configured to handle or can be used to open .jb2 files
The system is affected if STDU Viewer version 1.6.375 is installed and the JBIG2 file parsing component (STDUJBIG2File.dll) is present and functional.
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 dataAvoid opening untrusted or unexpected .jb2 files with STDU Viewer. If a patched version is available from the vendor, upgrade promptly. Otherwise, consider using alternative image viewing software for JBIG2 files.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-14294 — 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-2017-14294 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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