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Servers and applications

CVE-2017-6181

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.

Severity
High 7.5
Published
3 Apr 2017
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
RubyServers and applications · cpe:a:ruby-lang:ruby
  • Version 2.4.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-6181
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-6181