CVE-2018-16395
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.
How to fix
- ruby-lang openssl2.1.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ruby-lang openssl | v < 2.1.2 | 2.1.2 |
| ruby-lang ruby | 2.3.0 ≤ v ≤ 2.3.7, 2.4.0 ≤ v ≤ 2.4.4, 2.5.0 ≤ v ≤ 2.5.1, 2.6.0 | — |
| canonical ubuntu_linux | 14.04, 16.04, 18.04, 18.10 | — |
| debian debian_linux | 8.0, 9.0 | — |
| redhat enterprise_linux | 7.4 | — |
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