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Ubuntu: USN-3808-1 (CVE-2018-16395): Ruby vulnerabilities

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Ubuntu: USN-3808-1 (CVE-2018-16395): Ruby vulnerabilities

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
10/17/2018
Created
03/19/2019
Added
11/13/2018
Modified
03/02/2020

Description

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.

Solution(s)

  • ubuntu-upgrade-libruby1-9-1
  • ubuntu-upgrade-libruby2-0
  • ubuntu-upgrade-libruby2-3
  • ubuntu-upgrade-libruby2-5
  • ubuntu-upgrade-ruby1-9-1
  • ubuntu-upgrade-ruby1-9-3
  • ubuntu-upgrade-ruby2-0
  • ubuntu-upgrade-ruby2-3
  • ubuntu-upgrade-ruby2-5

References

  • USN-3808-1
  • DSA-4332
  • CVE-2018-16395

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