CVE-2006-3057
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 · uneditedUnspecified vulnerability in NetworkManager daemon for DHCP (dhcdbd) allows remote attackers to cause a denial of service (crash) via certain invalid DHCP responses that trigger memory corruption.
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 confidenceMemory corruption vulnerability in the dhcdbd DHCP daemon for NetworkManager allows remote attackers sending specially crafted invalid DHCP responses to crash the service, causing 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= 1.10= 1.12CVSS 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
- None
- Integrity
- None
- Availability
- Partial
AV:N/AC:L/Au:N/C:N/I:N/A:P
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 if dhcdbd package is installedOn RPM-based systems: rpm -q dhcdbd. On Debian-based systems: dpkg -l | grep dhcdbd. On source installs: check /usr/sbin/dhcdbd or which dhcdbdAffected if dhcdbd is installed and running on the system
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Determine the installed dhcdbd versionRun: dhcdbd --version or rpm -qi dhcdbd (or dpkg -s dhcdbd) to retrieve the package version numberAffected if The installed version is exactly 1.10 or 1.12
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Verify if NetworkManager is configured to use dhcdbdCheck NetworkManager configuration files (typically /etc/NetworkManager/NetworkManager.conf or /etc/sysconfig/network) for dhcdbd or dhcpcd references, or inspect running processes for dhcdbd instancesAffected if NetworkManager is actively using dhcdbd as its DHCP client backend
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Check if the dhcdbd service is running and exposedRun: ps aux | grep dhcdbd and check if the service is listening on network interfaces. Verify network exposure by checking if the system is receiving DHCP responses on UDP port 68Affected if dhcdbd is actively running and the system is on a network where it receives DHCP responses (such as a LAN or wireless network)
You are affected if dhcdbd version 1.10 or 1.12 is installed, NetworkManager is using it as the DHCP backend, and the service is actively running to process DHCP responses.
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 NetworkManager to a patched version that addresses this vulnerability, or disable the dhcdbd component if updating is not feasible.
- Consultation1.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2006-3057 — 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-2006-3057 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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