CVE-2017-6181

Description

The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression library, as used in Ruby 2.4.0, allows remote attackers to cause a denial of service (deep recursion and application crash) via a crafted regular expression.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.56%
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/13234 issue tracking vendor advisory
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/57660 issue tracking vendor advisory
http://www.securityfocus.com/bid/97304 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-6181?
CVE-2017-6181 has been scored as a high severity vulnerability.
How to fix CVE-2017-6181?
To fix CVE-2017-6181, 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-2017-6181 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-6181 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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