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.

Remediation

References

CVE-2017-11465

Related Vulnerabilities

Apache Tomcat Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2010-1157)

Jenkins Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2012-6074)

OpenSSL Out-of-bounds Read Vulnerability (CVE-2017-3731)

Undertow Uncontrolled Resource Consumption Vulnerability (CVE-2021-3629)

WordPress Plugin Coming Soon & Maintenance Mode Page Cross-Site Request Forgery (1.57)

Severity

Critical

Classification

CVE-2017-11465 CWE-787 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Tags

Missing Update Known Vulnerabilities