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verify_certificate_identity in the OpenSSL extension in...

Moderate severity Unreviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jan 28, 2023

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

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.

References

Published by the National Vulnerability Database Nov 29, 2019
Published to the GitHub Advisory Database May 24, 2022
Last updated Jan 28, 2023

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(86th percentile)

Weaknesses

No CWEs

CVE ID

CVE-2015-1855

GHSA ID

GHSA-4x8v-74xf-h4g3

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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