CVE-2009-4190
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 the kernel in Sun OpenSolaris 2009.06 allows remote attackers to cause a denial of service (panic) via unknown vectors, as demonstrated by the vd_solaris2 module in VulnDisco Pack Professional 8.12. NOTE: as of 20091203, this disclosure has no actionable information. However, because the VulnDisco Pack author is a reliable researcher, the issue is being assigned a CVE identifier for tracking purposes.
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 · low confidenceVulnerability in the Sun OpenSolaris 2009.06 kernel allows remote attackers to cause a system panic (complete denial of service). The attack vector and specific vulnerability mechanism are unspecified in the disclosure. The issue was demonstrated through the vd_solaris2 module in VulnDisco Pack Professional, indicating a potentially network-based attack vector.
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= 2009.06CVSS 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
- Complete
AV:N/AC:L/Au:N/C:N/I:N/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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Identify the installed operating systemRun 'uname -a' or check /etc/release to confirm the OS name and versionAffected if The system is running Sun OpenSolaris version 2009.06 exactly
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Verify the exact kernel versionRun 'uname -v' or check 'pkginfo -l SUNWcs' to obtain the precise kernel build versionAffected if The kernel version matches the 2009.06 release build
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Check if the vd_solaris2 module is loadedRun 'modinfo | grep -i vd_solaris2' or 'modinfo -c' to list loaded kernel modulesAffected if The vd_solaris2 module is currently loaded in memory
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Assess network exposureReview firewall rules with 'ipfstat -io' or 'pfctl -sr' and check listening services with 'netstat -an' for external interfacesAffected if The system has network-facing services enabled and is accessible from untrusted networks
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Confirm system uptime and panic historyCheck 'last' output for reboot patterns and review /var/adm/messages or /var/crash for panic dump filesAffected if The system has experienced unexpected reboots or contains kernel panic crash dumps
The system is affected only if it is running Sun OpenSolaris 2009.06 and has the vd_solaris2 module loaded or is network-accessible to remote attackers.
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 dataApply kernel patches if available from Oracle (OpenSolaris successor); otherwise implement network segmentation and firewall rules to limit exposure, and consider migrating to a supported operating system as OpenSolaris is discontinued.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2009-4190 — 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-2009-4190 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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