CVE-2015-1855

ruby: OpenSSL extension hostname matching implementation violates RFC 6125

Published Nov 29, 2019 CVSS 3.1 · 5.9 Medium EPSS 2.8% KEV · Not listed
Description
verify_certificate_identity in the OpenSSL extension in Ruby before 2.0.0 patchlevel 645, 2.1.x before 2.1.6, and 2.2.x before 2.2.2 does not properly validate hostnames, which allows remote attackers to spoof servers via vectors related to (1) multiple wildcards, (1) wildcards in IDNA names, (3) case sensitivity, and (4) non-ASCII characters.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-224-1 ruby1.8 security update
Debian DLA Debian DLA DLA-235-1 ruby1.9.1 security update
Debian DSA Debian DSA DSA-3245-1 ruby1.8 security update
Debian DSA Debian DSA DSA-3246-1 ruby1.9.1 security update
Debian DSA Debian DSA DSA-3247-1 ruby2.1 security update
EUVD EUVD EUVD-2015-1964 verify_certificate_identity in the OpenSSL extension in Ruby before 2.0.0 patchlevel 645, 2.1.x before 2.1.6, and 2.2.x before 2.2.2 does not properly validate hostnames, which allows remote attackers to spoof servers via vectors related to (1) multiple wildcards, (1) wildcards in IDNA names, (3) case sensitivity, and (4) non-ASCII characters.
Ubuntu USN Ubuntu USN USN-3365-1 Ruby vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00961}

epss

{'score': 0.01749}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2024, 4:54 AM
Reserved
Feb 17, 2015, 12:00 AM
Status
Modified
Published
Nov 29, 2019, 9:15 PM
Modified
Jun 17, 2026, 12:23 AM
Severity
Moderate
Public date
Mar 30, 2015, 12:00 AM