CVE-2015-1987
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 · uneditedIBM MQ Light before 1.0.0.2 allows remote attackers to cause a denial of service (disk consumption) via a crafted byte sequence in authentication data, a different vulnerability than CVE-2015-1956 and CVE-2015-1958.
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 confidenceIBM MQ Light versions prior to 1.0.0.2 are vulnerable to a denial of service attack where remote attackers send crafted byte sequences within authentication data, causing excessive disk consumption. This appears to be an input validation flaw where malformed authentication requests trigger unbounded logging or storage behavior, eventually filling the disk and rendering the service unavailable.
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= 1.0= 1.0.0.1CVSS 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
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Complete
AV:N/AC:L/Au:N/C:N/I:N/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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Identify IBM MQ Light installation and versionLocate the MQ Light installation directory and check the version information file or use the version command provided with the product. Common locations include /opt/mqlight or the installation directory defined during setup.Affected if The installed version is 1.0 or 1.0.0.1 specifically.
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Confirm authentication is enabledReview the MQ Light configuration to determine whether client authentication is configured and active. Check the security or authentication settings in the MQ Light configuration files or administration interface.Affected if Authentication is enabled and accepting connections, as the vulnerability is triggered by malformed authentication data.
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Monitor disk usage and log growthObserve disk space consumption on the partition where MQ Light stores logs, data, or temporary files. Use system monitoring tools to track if log files or data directories are growing unusually fast or excessively.Affected if Disk usage is increasing rapidly or log files are expanding beyond normal bounds without typical rotation or cleanup.
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Inspect authentication logs for anomaliesExamine MQ Light authentication and security logs for patterns of malformed requests, repeated failed authentication attempts with unusual byte sequences, or error messages related to authentication processing.Affected if Logs contain repeated authentication errors, warnings about malformed data, or entries showing unusual request patterns.
You are affected if IBM MQ Light version 1.0 or 1.0.0.1 is installed with authentication enabled, and you observe unexplained disk consumption or unusual authentication-related log activity.
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 IBM MQ Light to version 1.0.0.2 or later to remediate this vulnerability. Consider implementing disk monitoring and alerting as a compensating control until the upgrade is completed.
- Consultation2.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-1987 — 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-2015-1987 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
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