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CVE-2018-16395 The advisory has been revoked - it doesn't affect any version of package ruby-openssl  (opens in a new tab)

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EPSS
10.72% (96th percentile)

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  • Snyk IDSNYK-UBUNTU1910-RUBYOPENSSL-650408
  • published19 Oct 2018
  • disclosed16 Nov 2018
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Introduced: 19 Oct 2018

CVE-2018-16395  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:19.10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-openssl package and not the ruby-openssl package as distributed by Ubuntu.

An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. When two OpenSSL::X509::Name objects are compared using ==, depending on the ordering, non-equal objects may return true. When the first argument is one character longer than the second, or the second argument contains a character that is one less than a character in the same position of the first argument, the result of == will be true. This could be leveraged to create an illegitimate certificate that may be accepted as legitimate and then used in signing or encryption operations.

References