Critical severity · published Jul 19, 2017
CVE-2017-11465
The parser_yyerror function in the UTF-8 parser in Ruby 2.4.1 allows attackers to cause a denial of service (invalid write or read) or possibly have unspecified other impact via a…
9.8
CVSS
1.7%
EPSS
No
On KEV
Description
The parser_yyerror function in the UTF-8 parser in Ruby 2.4.1 allows attackers to cause a denial of service (invalid write or read) or possibly have unspecified other impact via a crafted Ruby script, related to the parser_tokadd_utf8 function in parse.y. NOTE: this might have security relevance as a bypass of a $SAFE protection mechanism.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RU
Ruby · Ruby-lang
2.4.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-11465
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-11465
Issue Tracking
https://bugs.ruby-lang.org/issues/13742
Issue Tracking
https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/59344
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