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Ruby-ffi has a DLL loading issue

High severity GitHub Reviewed Published Aug 31, 2018 to the GitHub Advisory Database • Updated Jul 31, 2023

Package

bundler ffi (RubyGems)

Affected versions

< 1.9.24

Patched versions

1.9.24

Description

ruby-ffi version 1.9.23 and earlier has a DLL loading issue which can be hijacked on Windows OS, when a Symbol is used as DLL name instead of a String This vulnerability appears to have been fixed in v1.9.24 and later.

References

Published to the GitHub Advisory Database Aug 31, 2018
Reviewed Jun 16, 2020
Last updated Jul 31, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS score

0.070%
(31st percentile)

Weaknesses

CVE ID

CVE-2018-1000201

GHSA ID

GHSA-2gw2-8q9w-cw8p

Source code

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