Improper Input Validation Affecting ruby2.0 package, versions <2.0.0.484-1ubuntu2.4


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
4.08% (93rd percentile)

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  • Snyk IDSNYK-UBUNTU1404-RUBY20-281612
  • published27 Jun 2018
  • disclosed29 Nov 2019

Introduced: 27 Jun 2018

CVE-2015-1855  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Ubuntu:14.04 ruby2.0 to version 2.0.0.484-1ubuntu2.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby2.0 package and not the ruby2.0 package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

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.

CVSS Scores

version 3.1