CVE-2013-4032
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 Fast Communications Manager (FCM) in IBM DB2 Enterprise Server Edition and Advanced Enterprise Server Edition 10.1 before FP3 and 10.5, when a multi-node configuration is used, allows remote attackers to cause a denial of service via vectors involving arbitrary data.
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 confidenceIBM DB2's Fast Communications Manager (FCM) component in versions 10.1 before FP3 and 10.5 contains a vulnerability in multi-node configurations that allows remote attackers to send arbitrary data causing a denial of service. FCM handles inter-node communication in DB2 clustered environments, and the vulnerability can be exploited without authentication.
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= 10.1= 10.5CVSS 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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Identify DB2 versionRun 'db2level' command to display the installed DB2 version and fix pack levelAffected if Version is 10.1 or 10.5, and for 10.1 the fix pack is below FP3
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Determine if multi-node configuration is activeRun 'db2nodes.cfg' file inspection or use 'db2pd -dbptnmv' command to list configured nodes. Check if more than one node exists in the DB2 pureScale or partitioned environment.Affected if The system has multiple DB2 nodes configured (clustered or partitioned setup)
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Verify FCM is listening on networkRun 'netstat -an | grep' on common FCM ports (60000-60099 range) or inspect 'db2diag.log' for FCM initialization messages showing active network listenersAffected if FCM has active network listeners for inter-node communication and is exposed to network access
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Confirm network exposure of FCM portsReview firewall rules and network configuration to determine if DB2 multi-node communication ports are accessible from untrusted networksAffected if FCM ports are accessible from outside the trusted cluster network
A system is affected if it runs DB2 version 10.1 before FP3 or version 10.5, operates in a multi-node configuration, and has FCM network listeners exposed to untrusted network access.
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 dataApply IBM DB2 fix pack 3 or later for version 10.1, or upgrade to a patched version of 10.5. In the interim, restrict network access to DB2 multi-node communication ports using firewalls or network segmentation to limit exposure to untrusted attackers.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2013-4032 — 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-2013-4032 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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