CVE-2017-11465

Name: CVE-2017-11465
Creator: NVD / NIST
Published: 2017-07-19T21:29:00.243+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.68%

Last modified Jun 17, 2026

CVE-2017-11465 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.68% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.68%

73.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ruby-Lang	Ruby	2.4.1

References

https://bugs.ruby-lang.org/issues/13742Issue Tracking, Patch, Vendor Advisory
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/59344Issue Tracking, Patch, Vendor Advisory
https://bugs.ruby-lang.org/issues/13742Issue Tracking, Patch, Vendor Advisory
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/59344Issue Tracking, Patch, Vendor Advisory

Timeline

Published: Jul 19, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-11465?

How severe is CVE-2017-11465?

Severity scoring for CVE-2017-11465 is pending analysis. The EPSS model estimates a 1.68% probability of exploitation in the next 30 days.

How do I fix CVE-2017-11465?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-11465?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST