CVE-2017-6181 Information

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.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/97304 https://bugs.ruby-lang.org/issues/13234 https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/57660

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5