CVE-2018-1371
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 · uneditedAn IBM WebSphere MQ 8.0.0.8, 9.0.0.2, and 9.0.4 Client connecting to a MQ Queue Manager can cause a SIGSEGV in the AMQRMPPA channel process terminating it. IBM X-Force ID: 137771.
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 denial-of-service vulnerability in IBM WebSphere MQ Client versions 8.0.0.8, 9.0.0.2, and 9.0.4 allows a specially crafted connection to a MQ Queue Manager to trigger a SIGSEGV segmentation fault in the AMQRMPPA channel process, causing it to terminate unexpectedly.
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= 8.0.0.8= 9.0.0.2= 9.0.4CVSS 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
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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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Identify the installed WebSphere MQ versionRun 'dspmqver' on Linux/Unix or check Programs and Features on Windows to determine the exact version number of the WebSphere MQ installationAffected if The version displayed is exactly 8.0.0.8, 9.0.0.2, or 9.0.4
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Confirm MQ Client is in useCheck if the system has MQ client libraries installed or if applications are configured to connect to remote Queue Managers using client channelsAffected if MQ client mode is enabled and the system connects to Queue Managers over network
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Verify AMQRMPPA channel process availabilityCheck for the presence of the AMQRMPPA executable in the MQ installation bin directory (typically <MQ_install_path>/mqm/bin/)Affected if The AMQRMPPA channel process binary exists and is used for handling client connections
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Check for active client connectionsRun 'DISPLAY CHANNEL(*)' or 'DISPLAY CONN(*) MQSC commands on the Queue Manager to list active channels and connectionsAffected if Any client-connection channels (such as SVRCONN) are configured or active
You are affected if your installed WebSphere MQ version is exactly 8.0.0.8, 9.0.0.2, or 9.0.4 and client connections to Queue Managers are possible using the AMQRMPPA channel process.
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 the appropriate IBM security patch or upgrade to a fixed version of WebSphere MQ. Test message queue flows after patching to verify the channel process no longer crashes.
- Consultation3.0 h
- Implementation6.0 h
- Testing5.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,464.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-1371 — 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-2018-1371 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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