要点
- CVE-2018-16395 は openssl, openssl (ruby-lang), ruby (ruby-lang) に影響する深刻度「緊急」 (CVSS 9.8) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：10.7%（全脆弱性の 95.8% より高い）。
- 対処：2.1.2, 2.0.9 以降に更新してください。
| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|
| openssl RubyGems | ≥ 2.1.0, < 2.1.2< 2.0.9
| 2.1.22.0.9
|
| openssl | < 2.1.2
| 2.1.2
|
| ruby | = 2.6.0≥ 2.3.0, ≤ 2.3.7≥ 2.4.0, ≤ 2.4.4≥ 2.5.0, ≤ 2.5.1
| 修正版なし |
概要
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 の説明
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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