{"id":"CVE-2017-11465","aliases":["EUVD-2017-3086","GHSA-6f39-fvhf-c6qr"],"status":"published","title":"The parser_yyerror function in the UTF-8 parser in Ruby 2.4.1 allows attackers to cause a denial...","description":"The parser_yyerror function in the UTF-8 parser in Ruby 2.4.1 allows attackers to cause a denial of service (invalid write or read) or possibly have unspecified other impact via a crafted Ruby script, related to the parser_tokadd_utf8 function in parse.y. NOTE: this might have security relevance as a bypass of a $SAFE protection mechanism.","severity":{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01677,"percentile":0.77022,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-787"],"published":"2017-07-19T21:00:00Z","modified":"2026-10-24T10:31:01Z","products":[{"vendor":"ruby-lang","product":"ruby"}],"references":[{"url":"https://bugs.ruby-lang.org/issues/13742","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Vendor Advisory","fix"]},{"url":"https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/59344","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Vendor Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-11465"},{"url":"https://github.com/advisories/GHSA-6f39-fvhf-c6qr"}],"sources":{"cve":[{"id":"CVE-2017-11465","description":"The parser_yyerror function in the UTF-8 parser in Ruby 2.4.1 allows attackers to cause a denial of service (invalid write or read) or possibly have unspecified other impact via a crafted Ruby script, related to the parser_tokadd_utf8 function in parse.y. NOTE: this might have security relevance as a bypass of a $SAFE protection mechanism.","status":"published","published":"2017-07-19T21:00:00Z","modified":"2024-09-16T17:15:26.973Z","updated_at":"2026-11-02T14:33:19.848632Z"}],"euvd":[{"id":"EUVD-2017-3086","description":"The parser_yyerror function in the UTF-8 parser in Ruby 2.4.1 allows attackers to cause a denial of service (invalid write or read) or possibly have unspecified other impact via a crafted Ruby script, related to the parser_tokadd_utf8 function in parse.y. NOTE: this might have security relevance as a bypass of a $SAFE protection mechanism.","status":"published","published":"2017-07-19T21:00:00Z","modified":"2024-09-16T17:15:26Z","updated_at":"2026-11-03T00:55:43.899381Z"}],"ghsa":[{"id":"GHSA-6f39-fvhf-c6qr","title":"The parser_yyerror function in the UTF-8 parser in Ruby 2.4.1 allows attackers to cause a denial...","description":"The parser_yyerror function in the UTF-8 parser in Ruby 2.4.1 allows attackers to cause a denial of service (invalid write or read) or possibly have unspecified other impact via a crafted Ruby script, related to the parser_tokadd_utf8 function in parse.y. NOTE: this might have security relevance as a bypass of a $SAFE protection mechanism.","status":"published","published":"2022-05-17T02:26:07Z","modified":"2023-01-27T05:04:48Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:42:33.466157Z"}],"nvd":[{"id":"CVE-2017-11465","description":"The parser_yyerror function in the UTF-8 parser in Ruby 2.4.1 allows attackers to cause a denial of service (invalid write or read) or possibly have unspecified other impact via a crafted Ruby script, related to the parser_tokadd_utf8 function in parse.y. NOTE: this might have security relevance as a bypass of a $SAFE protection mechanism.","status":"published","published":"2017-07-19T21:29:00.243Z","modified":"2026-06-17T01:01:51.37Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-125","CWE-787"],"updated_at":"2026-11-02T14:03:54.012105Z"}],"osv":[{"id":"CVE-2017-11465","description":"The parser_yyerror function in the UTF-8 parser in Ruby 2.4.1 allows attackers to cause a denial of service (invalid write or read) or possibly have unspecified other impact via a crafted Ruby script, related to the parser_tokadd_utf8 function in parse.y. NOTE: this might have security relevance as a bypass of a $SAFE protection mechanism.","status":"published","published":"2017-07-19T21:29:00.243Z","modified":"2026-10-24T10:31:01.796640076Z","cvss":[{"version":"3.0","score":9.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:03.851821Z"}]}}