Launch Week Day 1: Announcing Security Design Review
CRITICAL 9.8 RubyGems

Ruby Openssl Allows Incorrect Value Comparison

GHSA-mmrq-6999-72v8 · CVE-2018-16395

Published · Modified

Description

An issue was discovered in the OpenSSL library in Ruby 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.

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