CfingerdApplication · Debian
CVE-2013-1049
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 · uneditedBuffer overflow in the RFC1413 (ident) client in cfingerd 1.4.3-3 allows remote IDENT servers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted response.
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 confidenceBuffer overflow vulnerability in the RFC1413 (ident) client of cfingerd 1.4.3-3 allows remote malicious IDENT servers to send crafted responses that overflow a buffer, potentially causing denial of service (crash) or arbitrary code execution.
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
CfingerdApplication
= 1.4.3-3CVSS 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
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/A:C
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 cfingerd package installationRun 'dpkg -l | grep cfingerd' on Debian systems, or 'rpm -qa | grep cfingerd' on RHEL-based systemsAffected if cfingerd is installed and the version shows as 1.4.3-3
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Confirm exact cfingerd version numberRun 'dpkg -s cfingerd' or 'rpm -qi cfingerd' to retrieve the precise version stringAffected if Version is exactly 1.4.3-3
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Locate cfingerd configuration fileCheck for cfingerd.conf in /etc/cfingerd/ or /etc/ directory, using 'find /etc -name cfingerd.conf 2>/dev/null'Affected if A cfingerd configuration file exists and the ident/RFC1413 client is enabled within it
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Check if ident client functionality is enabledInspect the cfingerd configuration file for directives related to ident, rfc1413, or ident lookup - look for options like 'enable-ident', 'rfc1413-lookup', or similar settingsAffected if The configuration contains settings that enable cfingerd to perform ident/RFC1413 client queries to remote servers
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Verify cfingerd daemon is actively runningRun 'ps aux | grep cfingerd' or 'systemctl status cfingerd' to check if the daemon is currently executingAffected if cfingerd process is running with ident client functionality available
You are affected only if cfingerd version 1.4.3-3 is installed AND the RFC1413/ident client feature is enabled in the configuration and the daemon is running.
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 cfingerd to a patched version, or if no update is available, disable the ident client functionality in cfingerd, or consider replacing the deprecated cfingerd with a maintained finger daemon.
Fix this in Cfingerd
Scoped from the published advisory
- Consultation3.0 h
- Implementation6.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2013-1049 — 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-2013-1049 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