Description
An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. When two OpenSSL::X509::Name objects are compared using ==, depending on the ordering, non-equal objects may return true. When the first argument is one character longer than the second, or the second argument contains a character that is one less than a character in the same position of the first argument, the result of == will be true. This could be leveraged to create an illegitimate certificate that may be accepted as legitimate and then used in signing or encryption operations.
Published: 2018-11-16
Score: 9.8 Critical
EPSS: 4.4% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1558-1 ruby2.1 security update
Debian DSA Debian DSA DSA-4332-1 ruby2.3 security update
EUVD EUVD EUVD-2022-4596 An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. When two OpenSSL::X509::Name objects are compared using ==, depending on the ordering, non-equal objects may return true. When the first argument is one character longer than the second, or the second argument contains a character that is one less than a character in the same position of the first argument, the result of == will be true. This could be leveraged to create an illegitimate certificate that may be accepted as legitimate and then used in signing or encryption operations.
Github GHSA Github GHSA GHSA-mmrq-6999-72v8 Ruby Openssl Allows Incorrect Value Comparison
Ubuntu USN Ubuntu USN USN-3808-1 Ruby vulnerabilities
History

Sat, 12 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.08063}

epss

{'score': 0.07275}


Subscriptions

Canonical Ubuntu Linux
Debian Debian Linux
Redhat Enterprise Linux Rhel Eus Rhel Software Collections
Ruby-lang Openssl Ruby
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T10:24:32.106Z

Reserved: 2018-09-03T00:00:00.000Z

Link: CVE-2018-16395

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-11-16T18:29:00.943

Modified: 2024-11-21T03:52:40.143

Link: CVE-2018-16395

cve-icon Redhat

Severity : Important

Publid Date: 2018-10-17T00:00:00Z

Links: CVE-2018-16395 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses