CVE-2024-31191
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 · uneditedOut-of-bounds Read vulnerability in Open Networking Foundation (ONF) libfluid (libfluid_msg module). This vulnerability is associated with program routine fluid_msg::of13::MultipartReplyMeter::unpack. This issue affects libfluid: 0.1.0.
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 confidenceAn out-of-bounds read vulnerability exists in the fluid_msg::of13::MultipartReplyMeter::unpack routine of libfluid 0.1.0. The unpack function fails to properly validate buffer bounds before reading data, allowing a crafted OpenFlow multipart reply message to read beyond allocated memory boundaries.
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= 0.1.0CVSS 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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Identify libfluid-msg versionLocate the installed libfluid-msg library and check its version - examine package metadata, source code version headers, or library file version info. Compare to the affected version 0.1.0.Affected if The installed version is exactly 0.1.0
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Confirm OpenFlow 1.3 support is enabledCheck if the of13 (OpenFlow 1.3) namespace and classes are being compiled or used in the deployment - look for of13 includes, Meter classes, or of13::MultipartReplyMeter references in the codebase.Affected if OpenFlow 1.3 support is compiled or loaded in the environment
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Verify MultipartReplyMeter unpack is reachableInspect code that handles incoming OpenFlow multipart reply messages. Search for calls to MultipartReplyMeter::unpack or of13::MultipartReplyMeter instantiation that processes data from network sources.Affected if The MultipartReplyMeter::unpack routine processes messages from untrusted OpenFlow controllers or switches
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Check if processing untrusted network trafficDetermine whether the libfluid deployment accepts OpenFlow multipart messages from external, untrusted sources without prior authentication or validation at a higher layer.Affected if Multipart messages from untrusted network peers are being unpacked without additional validation
You are affected if libfluid-msg version 0.1.0 is in use AND OpenFlow 1.3 MultipartReplyMeter functionality processes network-supplied messages.
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 to a patched version of libfluid if available, or implement bounds checking in the MultipartReplyMeter::unpack routine to validate buffer length before reading packet data.
- 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-2024-31191 — 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-2024-31191 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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