VULNERABILITY INTELLIGENCE

CVE-2017-11465

CVSS score9.8 CRITICAL
EPSS probability1.68%
CISA KEVNot currently listed
Published2017-07-19
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • CWE-125: Out-of-bounds Read
  • CWE-787: Out-of-bounds Write

Primary references