CVE-2002-1140
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 · uneditedThe Sun Microsystems RPC library Services for Unix 3.0 Interix SD, as implemented on Microsoft Windows NT4, 2000, and XP, allows remote attackers to cause a denial of service (service hang) via malformed packet fragments, aka "Improper parameter size check leading to denial of service."
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 Sun Microsystems RPC library in Services for Unix 3.0 Interix on Windows NT4, 2000, and XP contains an improper parameter size check that allows remote attackers to cause a denial of service via malformed RPC packet fragments, leading to service hang.
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= 3.0CVSS 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
- 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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Confirm Windows versionCheck if the system is running Windows NT4, Windows 2000, or Windows XP. Run 'winver' or check system properties.Affected if The system runs any of these three Windows versions.
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Check if Services for Unix 3.0 is installedLook for Microsoft Services for Unix 3.0 in the list of installed programs via Add/Remove Programs, or check the registry under HKLM\SOFTWARE\Microsoft\Services for Unix for version information.Affected if Services for Unix version 3.0 is installed on the system.
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Verify Interox RPC service statusCheck if the Interix RPC service (typically named 'Interix RPC Service' or similar) is installed and running. Use Services.msc or run 'sc query' to enumerate services containing 'Interix' or 'SFU'.Affected if The Interix RPC service is installed and running on the system.
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Check RPC listener configurationVerify that RPC listeners are enabled for Interix. This may require checking RPC configuration via 'rpccfg' or reviewing network listening services associated with SFU/Interix.Affected if Interix RPC listeners are bound to network interfaces and accepting connections.
The system is affected if it runs Windows NT4, 2000, or XP with Services for Unix 3.0 Interix installed and the Interix RPC service enabled and listening on 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 dataRestrict network access to systems running SFU 3.0 Interix RPC services, or disable the service if not required. If the service must remain active, apply any available vendor patches from Sun Microsystems.
- 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-2002-1140 — 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-2002-1140 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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