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.
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openssl
Vendor: ruby-lang
Actively Exploited
0
CISA KEV List
PoC / Exploits
0
Code Available
Total RCEs
0
Remote Access
Total CVEs
18
Total Indexed
Avg. EPSS
2.38%
Exploit Prob.
Security Vulnerability Index
Page 1 / 2
9.8
CVSS
Severity: CRITICAL
7.5
CVSS
The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism.
Severity: HIGH