VULNERABILITY INTELLIGENCE
CVE-2017-6181
CVSS score7.5 HIGH
EPSS probability3.65%
CISA KEVNot currently listed
Published2017-04-03
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- CWE-20: Improper Input Validation
Primary references
- cve@mitre.org — Third Party Advisory, VDB Entry
- cve@mitre.org — Issue Tracking, Vendor Advisory
- cve@mitre.org — Issue Tracking, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Vendor Advisory