GHSA-mc6j-h948-v2p6 · 深刻度： critical · エコシステム： rubygems — RubyGems Improper Verification of Cryptographic Signature vulnerability
RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Improper Verification of Cryptographic Signature vulnerability in package.rb that can result in a mis-signed gem could be installed, as the tarball would contain multiple gem signatures.. This vulnerability appears to have been fixed in 2.7.6.
総合評価: CVE-2018-1000076 は中リスク（63.8/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 0.86%、74 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
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 | 2025-11-21 | 2.29% | 0.86% | -1.43% |
| 2 | 2025-11-18 | 0.91% | 2.29% | +1.38% |
| 3 | 2025-07-13 | — | 0.91% | — |
EPSS の全履歴 （全 18 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-mc6j-h948-v2p6 · 深刻度： critical · エコシステム： rubygems — RubyGems Improper Verification of Cryptographic Signature vulnerability
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2018-1000076 not yet assigned priority: Debian including 2 source packages (jruby, rubygems), 9 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 9. | https://security-tracker.debian.org/tracker/CVE-2018-1000076 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2018-1000076 |
suse
|
medium | CVE-2018-1000076 severity moderate: SUSE including 301 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, …), 1042 product×package rows across 263 product lines (Container bci/ruby, Container suse/rmt-server, … (263 product lines)): Fixed 842, Known Affected 157, Known Not Affected 43. | https://www.suse.com/security/cve/CVE-2018-1000076/ |
ubuntu
|
low | CVE-2018-1000076 low priority: Ubuntu including 6 source packages (jruby, ruby1.9.1, ruby2.0, ruby2.1, ruby2.3, ruby2.5), 118 status rows across 20 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 88, not-affected 12, needs-triage 8, released 8, ignored 2. | https://ubuntu.com/security/CVE-2018-1000076 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| rubygems | rubygems | <= 2.2.9 | cpe:2.3:a:rubygems:rubygems:*:*:*:*:*:*:*:* |
| rubygems | rubygems | <= 2.3.6 | cpe:2.3:a:rubygems:rubygems:*:*:*:*:*:*:*:* |
| rubygems | rubygems | <= 2.4.3 | cpe:2.3:a:rubygems:rubygems:*:*:*:*:*:*:*:* |
| rubygems | rubygems | <= 2.5.0 | cpe:2.3:a:rubygems:rubygems:*:*:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |