CVE-2024-42384
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 · uneditedInteger Overflow or Wraparound vulnerability in Cesanta Mongoose Web Server v7.14 allows an attacker to send an unexpected TLS packet and produce a segmentation fault on the application.
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 confidenceMongoose Web Server v7.14 contains an integer overflow or wraparound vulnerability in its TLS packet handling logic. When an attacker sends a specially crafted TLS packet with unexpected length values, the integer overflow leads to memory corruption resulting in a segmentation fault and 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<= 7.14CVSS 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 if Mongoose Web Server is in useCheck running processes or installed packages for mongoose, or examine any web server configurations for references to Cesanta MongooseAffected if Mongoose Web Server is present in the environment
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Determine the installed version of MongooseRun mongoose with --version flag, or check the binary/library version metadata, or review the software bill of materials if availableAffected if The version is 7.14 or any version lower than 7.14
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Confirm TLS support is enabledReview the Mongoose configuration or build settings to determine if TLS/HTTPS functionality has been compiled in and is actively usedAffected if TLS support is enabled and the server is accepting TLS connections
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Check network exposure to TLS endpointsIdentify which network interfaces and ports the Mongoose server is listening on, specifically look for ports handling HTTPS/TLS trafficAffected if The TLS-enabled service is directly exposed to network traffic without a terminating proxy
A user is affected if they are running Cesanta Mongoose version 7.14 or earlier with TLS support enabled and accepting connections.
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.
dbcve · scopedUpdate to a patched version of Mongoose Web Server if available; otherwise, implement rate limiting on TLS connections and consider placing the service behind a TLS-terminating proxy to filter malformed packets.
Mongoose 7.15 or later
- 1. Identify the current Mongoose library version in use by checking package.json, package-lock.json, or your dependency management system
- 2. Update the Mongoose dependency to version 7.15 or later using your package manager (e.g., npm update mongoose, pip install --upgrade mongoose, or equivalent for your language)
- 3. Rebuild and recompile any applications that link against the Mongoose library
- 4. Test the updated application to ensure the TLS packet handling no longer causes integer overflow leading to segmentation faults
- 5. Verify the fix by reviewing the Mongoose project release notes for version 7.15 or later to confirm the vulnerability is addressed
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 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 $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-42384 — 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-2024-42384 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
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