CVE-2013-4768
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 · uneditedThe web services APIs in Eucalyptus 2.0 through 3.4.1 allow remote attackers to cause a denial of service via vectors related to the "network connection clean up code" and (1) Cloud Controller (CLC), (2) Walrus, (3) Storage Controller (SC), and (4) VMware Broker (VB).
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 confidenceThe web services APIs in Eucalyptus versions 2.0 through 3.4.1 contain a denial of service vulnerability in the network connection cleanup code. Remote attackers can exploit this flaw across multiple core components including the Cloud Controller (CLC), Walrus, Storage Controller (SC), and VMware Broker (VB), causing service disruptions.
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= 2.0.1= 2.0.2= 2.0.3= 3.0= 3.0.1= 3.1.0= 3.1.1= 3.1.2= 3.2.0= 3.2.1= 3.2.2CVSS 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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Verify Eucalyptus installationLocate Eucalyptus installation directories or check for installed packages using system package manager (e.g., 'rpm -qa | grep eucalyptus' or 'dpkg -l | grep eucalyptus')Affected if Eucalyptus software is found on the system
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Determine installed Eucalyptus versionRun version check command such as 'eucalyptus --version' or inspect version files in installation directories (commonly found in /etc/eucalyptus or /usr/lib/eucalyptus)Affected if Installed version matches 2.0, 2.0.1, 2.0.2, 2.0.3, 3.0, 3.0.1, 3.1.0, 3.1.1, 3.1.2, 3.2.0, 3.2.1, or 3.2.2 (or falls between 2.0 and 3.4.1 per the advisory summary)
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Identify active Eucalyptus componentsCheck running Eucalyptus services using 'service eucalyptus status' or by examining process list for CLC (Cloud Controller), Walrus, SC (Storage Controller), and VB (VMware Broker) processesAffected if Any of these core components (CLC, Walrus, SC, or VB) are running
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Confirm web services API exposureInspect configuration files (e.g., in /etc/eucalyptus) for enabled web service endpoints and verify network listeners on ports typically used by Eucalyptus (port 8773 for cloud services)Affected if Web services APIs are enabled and exposed on network interfaces
User is affected if Eucalyptus is installed with a version between 2.0 and 3.4.1 and has any core components (CLC, Walrus, SC, or VB) running with web services APIs exposed.
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 Eucalyptus to a version beyond 3.4.1 that addresses this vulnerability. If immediate upgrade is not feasible, implement network-level rate limiting and connection throttling as a compensating control.
- Consultation8.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2013-4768 — 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-2013-4768 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
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