converter.rb in the md2pdf gem 0.0.1 for Ruby allows context-dependent attackers to execute arbitrary commands via shell metacharacters in a filename.
{
"github_reviewed_at": "2020-06-16T21:28:02Z",
"nvd_published_at": "2013-04-25T23:55:01Z",
"cwe_ids": [],
"severity": "CRITICAL",
"github_reviewed": true
}