CVE-2017-12464
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 · uneditedccn-lite-valid.c in CCN-lite before 2.00 allows context-dependent attackers to cause a denial of service (NULL pointer dereference) via vectors involving the keyfile variable.
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 confidenceVulnerability in CCN-lite's validation component (ccn-lite-valid.c) allows context-dependent attackers to cause a denial of service by triggering a NULL pointer dereference via the keyfile variable before version 2.00.
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< 2.0.0CVSS 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 CCN-lite installationRun command 'which ccn-lite' or 'ccn-lite-version' to locate the ccn-lite binaries and toolsAffected if CCN-lite is not found on the system - not applicable
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Determine installed CCN-lite versionRun 'ccn-lite-version' or check package manager (dpkg -rpm -q ccn-lite) for the installed version numberAffected if Version is present and less than 2.0.0 (e.g., 1.x.x series)
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Identify use of validation component with keyfileReview application logs, configurations, or command history for use of ccn-lite-valid.c functions that accept a keyfile parameter (e.g., validation operations specifying a keyfile path)Affected if The validation component is actively used with a keyfile parameter when the keyfile variable is NULL or uninitialized
You are affected if CCN-lite version is below 2.0.0 and the validation component is being used with a keyfile parameter that can trigger a NULL pointer dereference in ccn-lite-valid.c
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 data2.0.0
Implement proper NULL validation for the keyfile variable in ccn-lite-valid.c before dereferencing, and ensure appropriate error handling when keyfile initialization fails.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-12464 — 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-2017-12464 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
- No weaponised exploit code, or anything meant to cause harm
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