CVE-2013-5019
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 · uneditedStack-based buffer overflow in Ultra Mini HTTPD 1.21 allows remote attackers to execute arbitrary code via a long resource name in an HTTP request.
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 confidenceA stack-based buffer overflow vulnerability in Ultra Mini HTTPD version 1.21 allows remote attackers to execute arbitrary code by sending HTTP requests containing abnormally long resource names that overflow a stack-allocated buffer.
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= 1.21CVSS 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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Identify if Ultra Mini HTTPD is installedCheck for the presence of Ultra Mini HTTPD executable or service on the system. Common locations include installation directories or system service listings.Affected if Ultra Mini HTTPD executable or service is found on the system
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Determine the installed versionRun the executable with version flags (e.g., -v, --version) or check the binary metadata/version information. On Windows, right-click the executable and select Properties > Details; on Linux, use 'file' command or check the binary string for version info.Affected if The version is exactly 1.21
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Verify the HTTP service is runningCheck if the Ultra Mini HTTPD process is active and listening on configured ports (commonly port 80 or configured HTTP port). Use commands like 'netstat -an' or 'ss -tlnp' to list listening services.Affected if The service is running and accepting HTTP connections
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Confirm the vulnerability trigger conditionThe flaw is triggered when HTTP requests containing abnormally long resource names are processed. This is a remote attack vector via specially crafted HTTP requests.Affected if The HTTP service is accessible to network requests and processes resource name parameters
If Ultra Mini HTTPD version 1.21 is installed and running as an accessible HTTP service, the environment is affected by this 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 dataApply available patches for Ultra Mini HTTPD 1.21 or implement input length validation on HTTP resource name parameters to prevent buffer overflow.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2013-5019 — 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-2013-5019 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
- No spam, self-promotion, credentials, or personal data