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01 Record

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 crafted Ruby script,

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 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,

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.67% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 76.4% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2017-07-19 21:00Z9 YR AGO
Last updated
2024-09-16 17:15Z2 YR AGO
Reserved
2017-07-19
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-125Out-of-bounds ReadBase
  • CWE-787Out-of-bounds WriteBase
  • CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
Data version
5.1
Document digest
01ef9d776982cf1cae0c3c767b1420bbd35b5e1f1876a4a06ee850f9c07e12b6

05 Affected products

VendorProductVersionsPlatforms
redhatcloudforms_managementengineNot specified—
redhatenterprise_linuxNot specified—
redhatrhel_software_collectionsNot specified—
rhel_sam1Not specified—
ruby-langrubyNot specified—

06 References