CVE-2010-4338
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 · uneditedocrodjvu 0.4.6-1 on Debian GNU/Linux allows local users to modify arbitrary files via a symlink attack on temporary files that are generated when Cuneiform is invoked as the OCR engine.
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 confidenceocrodjvu 0.4.6-1 generates temporary files in an insecure manner when invoking Cuneiform as the OCR engine. Local users can exploit this by creating symbolic links in the temporary directory, causing the application to write to attacker-controlled locations and modify arbitrary files on the system.
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= 0.4.6-1CVSS 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
- High
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:L/AC:H/Au:N/C:C/I:C/A:C
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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Check if ocrodjvu is installedRun 'dpkg -l ocrodjvu' on Debian-based systems, or check for the package using your system's package managerAffected if ocrodjvu package is present on the system
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Verify the installed versionRun 'dpkg -s ocrodjvu' and look for the Version field, or use 'ocrodjvu --version' if availableAffected if The installed version is 0.4.6-1
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Confirm Cuneiform is configured as the OCR engineInspect ocrodjvu configuration files in /etc/ocrodjvu/ or ~/.ocrodjvu/, or run ocrodjvu with verbose output to see which OCR engine is being invokedAffected if Cuneiform is set as the OCR backend
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Identify the temporary directory being usedRun ocrodjvu with debugging enabled or trace the system calls using 'strace -f ocrodjvu [options]' to see which temporary directory is accessed during OCR processingAffected if The temporary directory used is world-writable and not secured with proper permissions
A system is affected if it has ocrodjvu version 0.4.6-1 installed and is using Cuneiform as the OCR engine, with insecure temporary file handling in a world-writable directory.
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 dataImplement secure temporary file handling using functions like mkstemp() or secure temporary directories with restricted permissions (e.g., using tempfile.mkdtemp() or the TMPDIR environment variable with proper permissions). Ensure temp files are created with appropriate file permissions and use atomic file operations.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2010-4338 — 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-2010-4338 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
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