CGI.escape_html in Ruby before 2.7.5 and 3.x before 3.0.3 has an integer overflow and resultant buffer overflow via a long string on platforms (such as Windows) where size_t and long have different numbers of bytes. This also affects the CGI gem before 0.3.1 for Ruby.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| cgi(RubyGems) | 0.3.0 | 0.3.1 | N/A |
| cgi(RubyGems) | 0.2.0 | 0.2.1 | N/A |
| cgi(RubyGems) | 0 | 0.1.0.1 | N/A |
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