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.
{
"nvd_published_at": "2018-11-16T18:29:00Z",
"cwe_ids": [],
"severity": "CRITICAL",
"github_reviewed": true,
"github_reviewed_at": "2023-06-09T22:57:50Z"
}