CVE-2017-13763
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 · uneditedONOS versions 1.8.0, 1.9.0, and 1.10.0 do not restrict the amount of memory allocated. The Netty payload size is not limited.
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 confidenceONOS versions 1.8.0-1.10.0 have an unbounded memory allocation vulnerability in the Netty network framework. Without configured payload size limits, an attacker can send specially crafted network messages causing excessive memory consumption and potential denial of service.
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= 1.8.0= 1.9.0= 1.10.0CVSS 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
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/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 ONOS versionLocate and read the ONOS version identifier in the installation directory, startup logs, or using the ONOS CLI command 'version'Affected if The installed version is 1.8.0, 1.9.0, or 1.10.0
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Locate Netty configurationSearch for Netty-related configuration files or Java classes in the ONOS deployment that handle network message processingAffected if No Netty pipeline configuration file exists or can be found
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Inspect max frame size settingExamine Netty pipeline or bootstrap configuration files for any maxFrameSize, maxMessageSize, or similar payload size limit parametersAffected if No max frame size or message size limit is defined in the Netty configuration
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Check for size limit enforcementReview Netty channel pipeline initialization code for ByteBuf allocators or decoder configurations that restrict inbound message sizeAffected if No bounds are set on incoming message allocation or decoding
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Verify message size validationInspect any custom Netty handlers or decoders in the pipeline for explicit size checks before memory allocationAffected if No validation exists to reject or truncate oversized messages before they are processed
You are affected if ONOS version is 1.8.0, 1.9.0, or 1.10.0 AND the Netty framework in use has no configured limits on message or frame sizes.
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 dataConfigure Netty's channel pipeline with appropriate max frame size or message size limits to constrain memory allocation and reject oversized payloads.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-13763 — 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-2017-13763 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data