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Improper Handling of Exceptional Conditions The advisory has been revoked - it doesn't affect any version of package ruby2.5  (opens in a new tab)

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EPSS
2.91% (86th percentile)

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  • Snyk IDSNYK-SLES154-RUBY25-2808069
  • published4 May 2022
  • disclosed3 May 2022
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Introduced: 3 May 2022

CVE-2021-32066  (opens in a new tab)
CWE-755  (opens in a new tab)

Amendment

The SLES security team deemed this advisory irrelevant for SLES:15.4.

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 SLES.

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."