CVE-2017-6181 — HIGH (7.5) — White Hats Nepal

Vulnerability 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 Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Ruby-Lang	Ruby	2.4.0

Related Weaknesses (CWE)

CWE-20

References

http://www.securityfocus.com/bid/97304Third Party AdvisoryVDB Entry
https://bugs.ruby-lang.org/issues/13234Issue TrackingVendor Advisory
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/57660Issue TrackingVendor Advisory
http://www.securityfocus.com/bid/97304Third Party AdvisoryVDB Entry
https://bugs.ruby-lang.org/issues/13234Issue TrackingVendor Advisory
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/57660Issue TrackingVendor Advisory

FAQ

What is CVE-2017-6181?

CVE-2017-6181 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 an...

How severe is CVE-2017-6181?

CVE-2017-6181 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-6181?

Check the references section above for vendor advisories and patch information. Affected products include: Ruby-Lang Ruby.