Inadequate Encryption Strength Affecting ruby2.5 package, versions <2.5.1-1ubuntu1.10


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.24% (65th percentile)

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  • Snyk IDSNYK-UBUNTU1804-RUBY25-1319116
  • published15 Jul 2021
  • disclosed1 Aug 2021

Introduced: 15 Jul 2021

CVE-2021-32066  (opens in a new tab)
CWE-326  (opens in a new tab)

How to fix?

Upgrade Ubuntu:18.04 ruby2.5 to version 2.5.1-1ubuntu1.10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby2.5 package and not the ruby2.5 package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."

CVSS Scores

version 3.1