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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.

🗓️ 25 Sep 2020 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 2 Views

OpenSSL Ruby bug makes some X509 Name equality true, enabling illegitimate certificates.

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25 Sep 2020 07:00Current
9.6High risk
Vulners AI Score9.6
CVSS 27.5
CVSS 39.8
CVSS 3.19.8
EPSS0.0421
2