CVE-2000-0359
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 · uneditedBuffer overflow in Trivial HTTP (THTTPd) allows remote attackers to cause a denial of service or execute arbitrary commands via a long If-Modified-Since header.
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 confidenceBuffer overflow vulnerability in THTTPd's handling of the If-Modified-Since HTTP header allows remote attackers to cause a denial of service or potentially execute arbitrary commands via a specially crafted long header value.
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= 1.90a= 1.95= 2.0= 2.0.1= 2.0.2= 2.0.3= 2.0.4CVSS 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 THTTPd is runningRun 'ps aux | grep thttpd' or check for processes listening on HTTP port 80Affected if THTTPd process is found running on the system
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Determine the THTTPd versionRun 'thttpd -v' or 'thttpd -V' to display version information, or check the binary with 'httpd -v' if renamedAffected if The displayed version matches any of these: 1.90a, 1.95, 2.0, 2.0.1, 2.0.2, 2.0.3, or 2.0.4
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Verify HTTP service is accessibleConfirm the THTTPd service is accepting HTTP connections by making a request with 'curl -I http://localhost/' or checking if port 80 is listeningAffected if The service is reachable and responding to HTTP requests, exposing the If-Modified-Since header handling to network clients
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Check for the If-Modified-Since header processingSend a curl request with a long If-Modified-Since header: 'curl -H "If-Modified-Since: [long-value]" http://localhost/'Affected if The server processes the If-Modified-Since header and the request completes without error (meaning the buffer overflow condition exists without triggering a crash)
A system is affected if THTTPd version 1.90a, 1.95, 2.0, 2.0.1, 2.0.2, 2.0.3, or 2.0.4 is running and accessible via HTTP, as the buffer overflow in If-Modified-Since header processing can be triggered by a specially crafted long header value.
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.
dbcve · scopedUpgrade to a patched version of THTTPd that addresses this vulnerability, or implement an HTTP gateway/filter to enforce length limits on the If-Modified-Since header.
THTTPD 2.01 or later stable release
- 1. Identify current THTTPD version by running 'thttpd -V' or checking the package manager
- 2. Stop the THTTPD service before upgrading
- 3. Obtain THTTPD version 2.01 or later from the official source (acme.com/software/thttpd/)
- 4. Install the upgraded THTTPD package using appropriate package management commands for your system
- 5. Verify the installation succeeded by checking 'thttpd -V' shows version 2.01 or higher
- 6. Restart the THTTPD service
- 7. Test that the web server responds normally and the If-Modified-Since header is properly handled
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2000-0359 — 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-2000-0359 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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- Version or environment caveats, and links to real fixes
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