The VpMemAlloc function in bigdecimal.c in the BigDecimal class in Ruby 1.9.2-p136 and earlier, as used on Apple Mac OS X before 10.6.7 and other platforms, does not properly allocate memory, which allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving creation of a large BigDecimal value within a 64-bit process, related to an "integer truncation issue."
結論預警: CVE-2011-0188 綜合評估為中等風險（58.3/100）：CVSS 技術影響為中級，利用機率（EPSS 3.02%） 核心證據: 近一日 EPSS 上升 +1.09%，被利用關注度持續升高。 強制指令: 梳理受影響資產並納入修補計畫。
風險隨態勢動態變化；本站持續評估並同步更新本頁展示內容。
EPSS 日更估計相對被利用可能性；百分位表示該 CVE 在已評分漏洞中的相對排名（越高表示相對更嚴重）。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化（新 − 舊） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.94% | 3.02% | +1.09% |
| 2 | 2026-04-16 | 2.61% | 1.94% | -0.67% |
| 3 | 2025-12-28 | — | 2.61% | — |
完整 EPSS 歷史 （共 15 筆）
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2011-0188: 1 GLSA(s) (201412-27), 1 atom(s) (dev-lang/ruby); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-0188 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2011-0188 |
ubuntu
|
low | CVE-2011-0188 low priority: Ubuntu including 3 source packages (ruby1.8, ruby1.9, ruby1.9.1), 36 status rows across 12 suites (dapper, hardy, karmic, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, upstream): ignored 11, not-affected 10, DNE 9, released 5, needs-triage 1. | https://ubuntu.com/security/CVE-2011-0188 |
: Per: http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html 'This issue only affects 64-bit Ruby processes'.
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| ruby-lang | ruby | <= 1.9.2-p136 | cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9 | cpe:2.3:a:ruby-lang:ruby:1.9:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9 | cpe:2.3:a:ruby-lang:ruby:1.9:r18423:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.0 | cpe:2.3:a:ruby-lang:ruby:1.9.0:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.0 | cpe:2.3:a:ruby-lang:ruby:1.9.0:r18423:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.0-0 | cpe:2.3:a:ruby-lang:ruby:1.9.0-0:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.0-1 | cpe:2.3:a:ruby-lang:ruby:1.9.0-1:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.0-2 | cpe:2.3:a:ruby-lang:ruby:1.9.0-2:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.0-20060415 | cpe:2.3:a:ruby-lang:ruby:1.9.0-20060415:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.0-20070709 | cpe:2.3:a:ruby-lang:ruby:1.9.0-20070709:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.1 | cpe:2.3:a:ruby-lang:ruby:1.9.1:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.1 | cpe:2.3:a:ruby-lang:ruby:1.9.1:-p0:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.1 | cpe:2.3:a:ruby-lang:ruby:1.9.1:-p129:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.1 | cpe:2.3:a:ruby-lang:ruby:1.9.1:-p243:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.1 | cpe:2.3:a:ruby-lang:ruby:1.9.1:-p376:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.1 | cpe:2.3:a:ruby-lang:ruby:1.9.1:-p429:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.1 | cpe:2.3:a:ruby-lang:ruby:1.9.1:-preview_1:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.1 | cpe:2.3:a:ruby-lang:ruby:1.9.1:-preview_2:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.1 | cpe:2.3:a:ruby-lang:ruby:1.9.1:-rc1:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.1 | cpe:2.3:a:ruby-lang:ruby:1.9.1:-rc2:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.2 | cpe:2.3:a:ruby-lang:ruby:1.9.2:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.2 | cpe:2.3:a:ruby-lang:ruby:1.9.2:dev:*:*:*:*:*:* |