CVE-2018-16395

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.

• Canonical Ubuntu

  OS
  Canonical
  14.0416.0418.0418.10

• Debian

  OS
  Debian
  8.09.0

• Red Hat Enterprise Linux

  OS
  Redhat
  7.4

• Ruby Lang OpenSSL

  APP
  Ruby-Lang
  < 2.1.2

• Ruby Lang Ruby

  APP
  Ruby-Lang
  2.6.02.5.0 – 2.5.12.4.0 – 2.4.42.3.0 – 2.3.7