CVE-2017-6181
ruby: Stack overflow in parse_char_class() in Onigmo
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · February 20, 2017
Updated · May 13, 2026
Description
An unbounded recursion flaw was found in the way Ruby handled regular expressions. A specially crafted regular expression could be used by an attacker to crash an Ruby application processing such crafted input.
Statement
Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 6.5CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-674 · Uncontrolled Recursion