CVE-2015-1855 - CVE House
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Status published Medium CVE-2015-1855

verify_certificate_identity in the OpenSSL extension in Ruby before 2.0.0 patchlevel...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Ruby
Vulnerable Versions:
before 2.0.0 patchlevel 645, 2.1.x before 2.1.6, and 2.2.x before 2.2.2

Timeline

Official Publish: November 29th, 2019
Last Modified: August 6th, 2024
Added to House: July 19th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.