CVE-2009-20008
Green Dam 3.17 URL Processing Buffer Overflow
- State
- Published
- Severity
- 8.6 High
- Published
- Aug 30, 2025
- Updated
- May 25, 2026
- Reserved
- Aug 27, 2025
Description
Green Dam Youth Escort version 3.17 is vulnerable to a stack-based buffer overflow when processing overly long URLs. The flaw resides in the URL filtering component, which fails to properly validate input length before copying user-supplied data into a fixed-size buffer. A remote attacker can exploit this vulnerability by enticing a user to visit a specially crafted webpage containing a long URL, resulting in arbitrary code execution.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
Weaknesses
- CWE-121 Stack-based Buffer Overflow
Affected Products
| Product | Versions |
|---|---|
Green Dam Youth EscortZhengzhou Jinhui Computer System Engineering Co. Ltd. ; Beijing Dazheng Human Language Technology Academy |
|
References
- https://web.archive.org/web/20110426190759/http://www.cse.umich.edu/~jhalderm/pub/gd/technical-description
- https://en.wikipedia.org/wiki/Green_Dam_Youth_Escortproduct
- https://www.exploit-db.com/exploits/8969exploit
- https://www.exploit-db.com/exploits/8938exploit
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/browser/greendam_url.rbexploit
- https://www.vulncheck.com/advisories/green-dam-url-processing-buffer-overflowthird-party-advisory
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