GHSA-9qvm-2vhf-q649 · 深刻度： medium · エコシステム： rubygems — RubyGems Regular Expression Denial of Service
Algorithmic complexity vulnerability in Gem::Version::ANCHORED_VERSION_PATTERN in lib/rubygems/version.rb in RubyGems before 1.8.23.2, 1.8.24 through 1.8.26, 2.0.x before 2.0.10, and 2.1.x before 2.1.5, as used in Ruby 1.9.0 through 2.0.0p247, allows remote attackers to cause a denial of service (CPU consumption) via a crafted gem version that triggers a large amount of backtracking in a regular expression. NOTE: this issue is due to an incomplete fix for CVE-2013-4287.
総合評価: CVE-2013-4363 は中リスク（44.2/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 1.69%、74 パーセンタイル） 根拠: 直近 1 日で EPSS が +1.10% 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: 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 | 2026-06-15 | 0.59% | 1.69% | +1.10% |
| 2 | 2025-12-28 | 0.55% | 0.59% | +0.04% |
| 3 | 2025-12-27 | — | 0.55% | — |
EPSS の全履歴 （全 10 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 |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
GHSA-9qvm-2vhf-q649 · 深刻度： medium · エコシステム： rubygems — RubyGems Regular Expression Denial of Service
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2013-4363 unimportant priority: Debian including 1 source packages (rubygems), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2013-4363 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2013-4363 |
ubuntu
|
low | CVE-2013-4363 low priority: Ubuntu including 3 source packages (jruby, ruby1.9.1, rubygems), 15 status rows across 5 suites (lucid, precise, quantal, raring, upstream): ignored 13, DNE 1, needs-triage 1. | https://ubuntu.com/security/CVE-2013-4363 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| rubygems | rubygems | <= 1.8.23 | cpe:2.3:a:rubygems:rubygems:*:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.0 | cpe:2.3:a:rubygems:rubygems:1.8.0:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.1 | cpe:2.3:a:rubygems:rubygems:1.8.1:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.2 | cpe:2.3:a:rubygems:rubygems:1.8.2:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.3 | cpe:2.3:a:rubygems:rubygems:1.8.3:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.4 | cpe:2.3:a:rubygems:rubygems:1.8.4:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.5 | cpe:2.3:a:rubygems:rubygems:1.8.5:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.6 | cpe:2.3:a:rubygems:rubygems:1.8.6:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.7 | cpe:2.3:a:rubygems:rubygems:1.8.7:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.8 | cpe:2.3:a:rubygems:rubygems:1.8.8:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.9 | cpe:2.3:a:rubygems:rubygems:1.8.9:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.10 | cpe:2.3:a:rubygems:rubygems:1.8.10:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.11 | cpe:2.3:a:rubygems:rubygems:1.8.11:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.12 | cpe:2.3:a:rubygems:rubygems:1.8.12:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.13 | cpe:2.3:a:rubygems:rubygems:1.8.13:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.14 | cpe:2.3:a:rubygems:rubygems:1.8.14:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.15 | cpe:2.3:a:rubygems:rubygems:1.8.15:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.16 | cpe:2.3:a:rubygems:rubygems:1.8.16:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.17 | cpe:2.3:a:rubygems:rubygems:1.8.17:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.18 | cpe:2.3:a:rubygems:rubygems:1.8.18:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.19 | cpe:2.3:a:rubygems:rubygems:1.8.19:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.20 | cpe:2.3:a:rubygems:rubygems:1.8.20:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.21 | cpe:2.3:a:rubygems:rubygems:1.8.21:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.22 | cpe:2.3:a:rubygems:rubygems:1.8.22:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.24 | cpe:2.3:a:rubygems:rubygems:1.8.24:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.25 | cpe:2.3:a:rubygems:rubygems:1.8.25:*:*:*:*:*:*:* |
| rubygems | rubygems | 1.8.26 | cpe:2.3:a:rubygems:rubygems:1.8.26:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.0 | cpe:2.3:a:rubygems:rubygems:2.0.0:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.0 | cpe:2.3:a:rubygems:rubygems:2.0.0:preview2:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.0 | cpe:2.3:a:rubygems:rubygems:2.0.0:preview2.1:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.0 | cpe:2.3:a:rubygems:rubygems:2.0.0:preview2.2:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.0 | cpe:2.3:a:rubygems:rubygems:2.0.0:rc1:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.0 | cpe:2.3:a:rubygems:rubygems:2.0.0:rc2:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.1 | cpe:2.3:a:rubygems:rubygems:2.0.1:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.2 | cpe:2.3:a:rubygems:rubygems:2.0.2:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.3 | cpe:2.3:a:rubygems:rubygems:2.0.3:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.4 | cpe:2.3:a:rubygems:rubygems:2.0.4:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.5 | cpe:2.3:a:rubygems:rubygems:2.0.5:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.6 | cpe:2.3:a:rubygems:rubygems:2.0.6:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.7 | cpe:2.3:a:rubygems:rubygems:2.0.7:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.8 | cpe:2.3:a:rubygems:rubygems:2.0.8:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.0.9 | cpe:2.3:a:rubygems:rubygems:2.0.9:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.1.0 | cpe:2.3:a:rubygems:rubygems:2.1.0:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.1.0 | cpe:2.3:a:rubygems:rubygems:2.1.0:rc1:*:*:*:*:*:* |
| rubygems | rubygems | 2.1.0 | cpe:2.3:a:rubygems:rubygems:2.1.0:rc2:*:*:*:*:*:* |
| rubygems | rubygems | 2.1.1 | cpe:2.3:a:rubygems:rubygems:2.1.1:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.1.2 | cpe:2.3:a:rubygems:rubygems:2.1.2:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.1.3 | cpe:2.3:a:rubygems:rubygems:2.1.3:*:*:*:*:*:*:* |
| rubygems | rubygems | 2.1.4 | cpe:2.3:a:rubygems:rubygems:2.1.4:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9 | cpe:2.3:a:ruby-lang:ruby:1.9:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.1 | cpe:2.3:a:ruby-lang:ruby:1.9.1:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.2 | cpe:2.3:a:ruby-lang:ruby:1.9.2:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.3 | cpe:2.3:a:ruby-lang:ruby:1.9.3:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.3 | cpe:2.3:a:ruby-lang:ruby:1.9.3:p0:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.3 | cpe:2.3:a:ruby-lang:ruby:1.9.3:p125:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.3 | cpe:2.3:a:ruby-lang:ruby:1.9.3:p194:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.3 | cpe:2.3:a:ruby-lang:ruby:1.9.3:p286:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.3 | cpe:2.3:a:ruby-lang:ruby:1.9.3:p383:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.3 | cpe:2.3:a:ruby-lang:ruby:1.9.3:p385:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.3 | cpe:2.3:a:ruby-lang:ruby:1.9.3:p392:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.3 | cpe:2.3:a:ruby-lang:ruby:1.9.3:p426:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.3 | cpe:2.3:a:ruby-lang:ruby:1.9.3:p429:*:*:*:*:*:* |
| ruby-lang | ruby | 2.0 | cpe:2.3:a:ruby-lang:ruby:2.0:*:*:*:*:*:*:* |
| ruby-lang | ruby | 2.0.0 | cpe:2.3:a:ruby-lang:ruby:2.0.0:*:*:*:*:*:*:* |
| ruby-lang | ruby | 2.0.0 | cpe:2.3:a:ruby-lang:ruby:2.0.0:p0:*:*:*:*:*:* |
| ruby-lang | ruby | 2.0.0 | cpe:2.3:a:ruby-lang:ruby:2.0.0:p195:*:*:*:*:*:* |
| ruby-lang | ruby | 2.0.0 | cpe:2.3:a:ruby-lang:ruby:2.0.0:p247:*:*:*:*:*:* |
| ruby-lang | ruby | 2.0.0 | cpe:2.3:a:ruby-lang:ruby:2.0.0:preview1:*:*:*:*:*:* |
| ruby-lang | ruby | 2.0.0 | cpe:2.3:a:ruby-lang:ruby:2.0.0:preview2:*:*:*:*:*:* |
| ruby-lang | ruby | 2.0.0 | cpe:2.3:a:ruby-lang:ruby:2.0.0:rc1:*:*:*:*:*:* |
| ruby-lang | ruby | 2.0.0 | cpe:2.3:a:ruby-lang:ruby:2.0.0:rc2:*:*:*:*:*:* |