GHSA-mmrq-6999-72v8 · 深刻度: critical · エコシステム: rubygems — Ruby Openssl Allows Incorrect Value Comparison
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.
総合評価: CVE-2018-16395 は高リスク(77.5/100)。CVSS 深刻度は重大。悪用される可能性が高い(EPSS 10.71%、95 パーセンタイル) 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 直近 1 日で EPSS が +6.50% 上昇。悪用への関心が高まっている可能性があります。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 4.21% | 10.71% | +6.50% |
| 2 | 2026-06-02 | 4.42% | 4.21% | -0.21% |
| 3 | 2026-03-04 | — | 4.42% | — |
EPSS の全履歴 (全 57 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 9.8 | 3.0 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
GHSA-mmrq-6999-72v8 · 深刻度: critical · エコシステム: rubygems — Ruby Openssl Allows Incorrect Value Comparison
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
critical | CVE-2018-16395: 1 source package rows (ruby); 24 state rows across 9 repos (3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 9, open 15. | https://security.alpinelinux.org/vuln/CVE-2018-16395 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2018-16395 |
suse
|
medium | CVE-2018-16395 severity moderate: SUSE including 305 source package names (2.17-17.3:libruby2_5-2_5-2.5.5-4.3.1, 2.17-17.3:ruby2.5-2.5.5-4.3.1, …), 1072 product×package rows across 281 product lines (Container bci/ruby, Container suse/rmt-server, … (281 product lines)): Fixed 846, Known Affected 157, Known Not Affected 69. | https://www.suse.com/security/cve/CVE-2018-16395/ |
ubuntu
|
medium | CVE-2018-16395 medium priority: Ubuntu including 5 source packages (ruby-openssl, ruby1.9.1, ruby2.0, ruby2.3, ruby2.5), 95 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 79, released 8, needs-triage 4, not-affected 3, ignored 1. | https://ubuntu.com/security/CVE-2018-16395 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| ruby-lang | openssl | < 2.1.2 | cpe:2.3:a:ruby-lang:openssl:*:*:*:*:*:ruby:*:* |
| ruby-lang | ruby | >= 2.3.0, <= 2.3.7 | cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* |
| ruby-lang | ruby | >= 2.4.0, <= 2.4.4 | cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* |
| ruby-lang | ruby | >= 2.5.0, <= 2.5.1 | cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* |
| ruby-lang | ruby | 2.6.0 | cpe:2.3:a:ruby-lang:ruby:2.6.0:preview1:*:*:*:*:*:* |
| ruby-lang | ruby | 2.6.0 | cpe:2.3:a:ruby-lang:ruby:2.6.0:preview2:*:*:*:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.10 | cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 7.4 | cpe:2.3:o:redhat:enterprise_linux:7.4:*:*:*:*:*:*:* |