CVE-2019-16297
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 issue was discovered in Open Network Operating System (ONOS) 1.14. In the P4 tutorial application (org.onosproject.p4tutorial), the host event listener does not handle the following event types: HOST_MOVED, HOST_REMOVED, HOST_UPDATED. In combination with other applications, this could lead to the absence of intended code execution.
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 confidenceIn ONOS 1.14, the P4 tutorial application's host event listener only handles HOST_ADDED events but fails to handle HOST_MOVED, HOST_REMOVED, and HOST_UPDATED event types. This missing event handling causes the listener to ignore state changes for existing hosts, potentially causing intended application logic to not execute when hosts move, are removed, or updated within the network.
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= 1.14.0CVSS 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:3.1/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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Verify ONOS versionRun 'onos-version' or check the ONOS startup logs for the version numberAffected if The installed version is 1.14.0
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Locate P4 tutorial applicationCheck for the presence of the P4 tutorial app directory in the ONOS apps folder (typically /opt/onos/apps or within the ONOS source under apps/p4-tutorial)Affected if The P4 tutorial application is installed in the ONOS environment
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Check if P4 tutorial app is activeRun 'onos apps' command or query the ONOS REST API at /onos/v1/applications to list active applications, looking for the P4 tutorial appAffected if The P4 tutorial application is activated in ONOS
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Inspect host event listener codeExamine the host event listener source file in the P4 tutorial application - typically named something like HostEventListener.java or within the app's source directory - and search for event handling methodsAffected if The listener only implements handlers for HOST_ADDED and lacks handlers for HOST_MOVED, HOST_REMOVED, or HOST_UPDATED event types
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Verify event type registrationSearch the P4 tutorial app source code for event type declarations or subscriptions, looking for HostEvent.Type values to see which host event types are registeredAffected if Only HOST_ADDED is registered/handled and the other three host event types (HOST_MOVED, HOST_REMOVED, HOST_UPDATED) are not present in the event handling code
You are affected if running ONOS 1.14.0 with the P4 tutorial application active and its host event listener only handles HOST_ADDED events without implementing handlers for HOST_MOVED, HOST_REMOVED, and HOST_UPDATED event types.
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 dataAdd event handlers for HOST_MOVED, HOST_REMOVED, and HOST_UPDATED event types in the P4 tutorial application's host event listener to ensure proper event processing.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2019-16297 — 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-2019-16297 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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