CVE-2010-4327
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 · uneditedUnspecified vulnerability in the NCP service in Novell eDirectory 8.8.5 before 8.8.5.6 and 8.8.6 before 8.8.6.2 allows remote attackers to cause a denial of service (hang) via a malformed FileSetLock request to port 524.
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 confidenceA remote denial of service vulnerability exists in the NCP (NetWare Core Protocol) service of Novell eDirectory 8.8.5 before 8.8.5.6 and 8.8.6 before 8.8.6.2. An unauthenticated remote attacker can cause the NCP service to hang by sending a malformed FileSetLock request to port 524.
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= 8.8.5= 8.8.6CVSS 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
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 Novell eDirectory is installedCheck for the presence of Novell eDirectory installation. On Windows, look for Novell eDirectory in Add/Remove Programs or check for NDS (Novell Directory Services) related services. On NetWare, check for eDirectory binaries in the system.Affected if Novell eDirectory is not installed on the system
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Determine the installed eDirectory versionRun the version check utility for eDirectory. On Windows, this can often be found in the Novell menu or by running 'ndsd -v' from the eDirectory bin directory. Alternatively, check the registry key (if Windows) or consult the eDirectory installation logs.Affected if The installed version is 8.8.5 (before 8.8.5.6) or 8.8.6 (before 8.8.6.2)
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Verify the NCP service is running and accessibleCheck if port 524 is open and listening. Use 'netstat -an | findstr :524' on Windows or 'netstat -an | grep 524' on NetWare/Unix to see if NCP is listening. Verify the NCP service process is running.Affected if Port 524 is open and the NCP service is actively listening for connections
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Confirm network exposure to the NCP serviceDetermine if port 524 is accessible from network locations. Use port scanning tools or firewall rules to verify whether the NCP service on port 524 is reachable from untrusted networks. Check firewall configurations for inbound rules allowing port 524.Affected if Port 524 is accessible from untrusted or external network segments
You are affected if Novell eDirectory versions 8.8.5 (before 8.8.5.6) or 8.8.6 (before 8.8.6.2) are installed AND the NCP service on port 524 is running and accessible from the network.
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 dataUpgrade Novell eDirectory to version 8.8.5.6, 8.8.6.2, or later. If immediate patching is not possible, consider restricting network access to port 524 or implementing firewall rules to limit exposure.
- Consultation2.0 h
- Implementation3.0 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-2010-4327 — 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-2010-4327 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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