CVE-2017-6318
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 · uneditedsaned in sane-backends 1.0.25 allows remote attackers to obtain sensitive memory information via a crafted SANE_NET_CONTROL_OPTION packet.
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 confidenceThe saned network scanner daemon in sane-backends 1.0.25 contains an information disclosure vulnerability where processing a crafted SANE_NET_CONTROL_OPTION packet allows remote attackers to read sensitive memory contents. This is a memory disclosure issue in the network protocol handling code.
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= 42.1= 1.0.25CVSS 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
- High
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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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Check installed sane-backends versionRun 'sane-config --version' or check your package manager for sane-backends version (e.g., 'rpm -q sane-backends' on RPM-based systems or 'dpkg -l sane-backends' on Debian-based systems)Affected if The installed version equals 1.0.25 or falls within the affected range without the security patch applied
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Verify saned service statusCheck if the saned daemon is running (e.g., 'systemctl status saned' or 'ps aux | grep saned')Affected if The saned service is currently running and accepting network connections
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Confirm saned network configurationInspect the saned configuration file (typically /etc/sane.d/saned.conf) to see which hosts or networks are allowed to connectAffected if The configuration permits connections from untrusted or external networks (any host other than localhost or explicitly trusted internal networks)
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Check firewall exposureReview firewall rules to determine if the saned port (usually TCP 6566) is exposed to untrusted networks (e.g., 'iptables -L -n' or check your firewall management interface)Affected if The saned service port is open to network accessible addresses that are not limited to trusted internal networks
A system is affected if it runs sane-backends version 1.0.25 with saned exposed to network access, allowing remote attackers to trigger the memory disclosure vulnerability.
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 dataUpdate sane-backends to a version containing the security fix. If patching is not immediately possible, restrict network access to the saned service using firewall rules to limit exposure to trusted networks only.
- Consultation2.0 h
- Implementation4.0 h
- Testing4.0 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 $3,328.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-6318 — 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-2017-6318 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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