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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.39%
Vendor Advisory ruby-lang.org Vendor Advisory ruby-lang.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugs.ruby-lang.org/issues/13742 issue tracking patch vendor advisory
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/59344 issue tracking patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-11465?
CVE-2017-11465 has been scored as a critical severity vulnerability.
How to fix CVE-2017-11465?
To fix CVE-2017-11465, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-11465 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-11465 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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