CVE-2017-6181

HIGH

Ruby 2.4.0 - Denial of Service via Crafted Regular Expression in Onigmo Library

Title source: llm
STIX 2.1

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.

References (3)

Core 3
Core References
Issue Tracking, Vendor Advisory x_refsource_confirm
https://bugs.ruby-lang.org/issues/13234
Issue Tracking, Vendor Advisory x_refsource_confirm
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/57660
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/97304

Scores

CVSS v3 7.5
EPSS 0.0365
EPSS Percentile 88.2%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-20
Status published
Products (1)
ruby-lang/ruby 2.4.0
Published Apr 03, 2017
Tracked Since Feb 18, 2026