High severity · published Apr 3, 2017
CVE-2017-6181
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…
7.5
CVSS
3.6%
EPSS
No
On KEV
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
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.6% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RU
Ruby · Ruby-lang
2.4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-6181
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-6181
Third Party Advisory
http://www.securityfocus.com/bid/97304
Issue Tracking
https://bugs.ruby-lang.org/issues/13234
Issue Tracking
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/57660
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