CVE-2017-11465 — CRITICAL (9.8)

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Ruby-Lang	Ruby	2.4.1

Related Weaknesses (CWE)

CWE-787 CWE-125

References

https://bugs.ruby-lang.org/issues/13742Issue TrackingPatchVendor Advisory
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/59344Issue TrackingPatchVendor Advisory
https://bugs.ruby-lang.org/issues/13742Issue TrackingPatchVendor Advisory
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/59344Issue TrackingPatchVendor Advisory

FAQ

What is CVE-2017-11465?

CVE-2017-11465 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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,...

How severe is CVE-2017-11465?

CVE-2017-11465 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2017-11465?

Check the references section above for vendor advisories and patch information. Affected products include: Ruby-Lang Ruby.