CVE-2017-14308
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 cause a denial of service or possibly have unspecified other impact via a crafted .jb2 file, related to a "Read Access Violation starting at STDUJBIG2File!DllUnregisterServer+0x0000000000006ddd."
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 confidenceSTDU Viewer 1.6.375 contains a vulnerability in its JBIG2 image file parsing component (STDUJBIG2File). When processing a specially crafted .jb2 file, the application experiences a read access violation, leading to denial of service. The vulnerability occurs at a specific offset within the DllUnregisterServer function area, indicating a memory handling flaw during JBIG2 bitmap decoding.
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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Verify STDU Viewer installationCheck for STDU Viewer in program files directories or use system search to locate stduviewer.exeAffected if STDU Viewer is installed on the system
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Confirm installed versionRight-click stduviewer.exe, select Properties, and check the File Version on the Details tab, or run 'stduviewer.exe --version' if supportedAffected if The version is exactly 1.6.375
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Identify JBIG2 file handling componentCheck for the presence of STDUJBIG2File DLL or JBIG2-related modules in the STDU Viewer installation directoryAffected if JBIG2 parsing module (STDUJBIG2File) is present and loads when opening .jb2 files
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Determine exposure to .jb2 filesSearch the system for .jb2 files or check if users commonly open JBIG2 image files using STDU ViewerAffected if Users open .jb2 files with this specific version of STDU Viewer
A user is affected if STDU Viewer version 1.6.375 is installed AND the application is used to open specially crafted .jb2 files, triggering the read access violation in the JBIG2 parsing component.
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 dataDo not open untrusted .jb2 files with STDU Viewer. Wait for an official vendor patch addressing the JBIG2 parsing vulnerability, or consider using an alternative viewer that has more robust file format parsing and memory protection.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-14308 — 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-2017-14308 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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