CVE-2011-4895

Tor before 0.2.2.34, when configured as a bridge, sets up circuits through a process different from the process used by a client, which makes it easier for remote attackers to enumerate bridges by observing circuit building.

公開： 2011-12-22 最後更新： 2026-06-16 指派方： [email protected] 來源： [email protected]
NVD 狀態：Modified，CVE 狀態： published
檢視： NVD, CVE.org, EUVD

CVE-2011-4895 綜合評估為中等風險（44.1/100）：CVSS 技術影響為中級，利用機率（EPSS 1.62%） 近一日 EPSS 上升 +1.37%，被利用關注度持續升高。 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。

CVE-2011-4895 的 EPSS（利用預測評分）

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 0.25% 1.62% +1.37%
2 2025-03-30 0.40% 0.25% -0.15%
3 2025-03-29 — 0.40% —

完整 EPSS 歷史 （共 9 筆）

CVE-2011-4895 的 CVSS 指標

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
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N 點擊展開
存取路徑 (AV:N)
只要路由可達，即可從遠端發動利用。
存取複雜度 (AC:M)
需要若干有利條件，但不必「千年一遇」。
認證 (AU:N)
全程無需有效身分。
機密性影響 (C:P)
機密性受到部分損害。
完整性影響 (I:N)
對完整性無影響。
可用性影響 (A:N)
對可用性無影響。
 8.6 2.9 [email protected]

CVE-2011-4895 的弱點列舉

CVE-2011-4895 的 OS 追蹤

vendor priority summary link
debian unimportant CVE-2011-4895 unimportant priority: Debian including 1 source packages (tor), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-4895
ubuntu low CVE-2011-4895 low priority: Ubuntu including 1 source packages (tor), 9 status rows across 9 suites (hardy, lucid, maverick, natty, oneiric, precise, quantal, raring, upstream): not-affected 4, ignored 3, DNE 2. https://ubuntu.com/security/CVE-2011-4895

CVE-2011-4895 的影響軟體 / 設定

廠商 產品 版本 原始 CPE
tor tor <= 0.2.2.33 cpe:2.3:a:tor:tor:*:*:*:*:*:*:*:*
tor tor 0.0.2 cpe:2.3:a:tor:tor:0.0.2:*:*:*:*:*:*:*
tor tor 0.0.3 cpe:2.3:a:tor:tor:0.0.3:*:*:*:*:*:*:*
tor tor 0.0.4 cpe:2.3:a:tor:tor:0.0.4:*:*:*:*:*:*:*
tor tor 0.0.5 cpe:2.3:a:tor:tor:0.0.5:*:*:*:*:*:*:*
tor tor 0.0.6 cpe:2.3:a:tor:tor:0.0.6:*:*:*:*:*:*:*
tor tor 0.0.6.1 cpe:2.3:a:tor:tor:0.0.6.1:*:*:*:*:*:*:*
tor tor 0.0.6.2 cpe:2.3:a:tor:tor:0.0.6.2:*:*:*:*:*:*:*
tor tor 0.0.7 cpe:2.3:a:tor:tor:0.0.7:*:*:*:*:*:*:*
tor tor 0.0.7.1 cpe:2.3:a:tor:tor:0.0.7.1:*:*:*:*:*:*:*
tor tor 0.0.7.2 cpe:2.3:a:tor:tor:0.0.7.2:*:*:*:*:*:*:*
tor tor 0.0.7.3 cpe:2.3:a:tor:tor:0.0.7.3:*:*:*:*:*:*:*
tor tor 0.0.8 cpe:2.3:a:tor:tor:0.0.8:*:*:*:*:*:*:*
tor tor 0.0.8.1 cpe:2.3:a:tor:tor:0.0.8.1:*:*:*:*:*:*:*
tor tor 0.0.9 cpe:2.3:a:tor:tor:0.0.9:*:*:*:*:*:*:*
tor tor 0.0.9.1 cpe:2.3:a:tor:tor:0.0.9.1:*:*:*:*:*:*:*
tor tor 0.0.9.2 cpe:2.3:a:tor:tor:0.0.9.2:*:*:*:*:*:*:*
tor tor 0.0.9.3 cpe:2.3:a:tor:tor:0.0.9.3:*:*:*:*:*:*:*
tor tor 0.0.9.4 cpe:2.3:a:tor:tor:0.0.9.4:*:*:*:*:*:*:*
tor tor 0.0.9.5 cpe:2.3:a:tor:tor:0.0.9.5:*:*:*:*:*:*:*
tor tor 0.0.9.6 cpe:2.3:a:tor:tor:0.0.9.6:*:*:*:*:*:*:*
tor tor 0.0.9.7 cpe:2.3:a:tor:tor:0.0.9.7:*:*:*:*:*:*:*
tor tor 0.0.9.8 cpe:2.3:a:tor:tor:0.0.9.8:*:*:*:*:*:*:*
tor tor 0.0.9.9 cpe:2.3:a:tor:tor:0.0.9.9:*:*:*:*:*:*:*
tor tor 0.0.9.10 cpe:2.3:a:tor:tor:0.0.9.10:*:*:*:*:*:*:*
tor tor 0.1.0.1 cpe:2.3:a:tor:tor:0.1.0.1:*:*:*:*:*:*:*
tor tor 0.1.0.2 cpe:2.3:a:tor:tor:0.1.0.2:*:*:*:*:*:*:*
tor tor 0.1.0.3 cpe:2.3:a:tor:tor:0.1.0.3:*:*:*:*:*:*:*
tor tor 0.1.0.4 cpe:2.3:a:tor:tor:0.1.0.4:*:*:*:*:*:*:*
tor tor 0.1.0.5 cpe:2.3:a:tor:tor:0.1.0.5:*:*:*:*:*:*:*
tor tor 0.1.0.6 cpe:2.3:a:tor:tor:0.1.0.6:*:*:*:*:*:*:*
tor tor 0.1.0.7 cpe:2.3:a:tor:tor:0.1.0.7:*:*:*:*:*:*:*
tor tor 0.1.0.8 cpe:2.3:a:tor:tor:0.1.0.8:*:*:*:*:*:*:*
tor tor 0.1.0.9 cpe:2.3:a:tor:tor:0.1.0.9:*:*:*:*:*:*:*
tor tor 0.1.0.10 cpe:2.3:a:tor:tor:0.1.0.10:*:*:*:*:*:*:*
tor tor 0.1.0.11 cpe:2.3:a:tor:tor:0.1.0.11:*:*:*:*:*:*:*
tor tor 0.1.0.12 cpe:2.3:a:tor:tor:0.1.0.12:*:*:*:*:*:*:*
tor tor 0.1.0.13 cpe:2.3:a:tor:tor:0.1.0.13:*:*:*:*:*:*:*
tor tor 0.1.0.14 cpe:2.3:a:tor:tor:0.1.0.14:*:*:*:*:*:*:*
tor tor 0.1.0.15 cpe:2.3:a:tor:tor:0.1.0.15:*:*:*:*:*:*:*
tor tor 0.1.0.16 cpe:2.3:a:tor:tor:0.1.0.16:*:*:*:*:*:*:*
tor tor 0.1.0.17 cpe:2.3:a:tor:tor:0.1.0.17:*:*:*:*:*:*:*
tor tor 0.1.0.18 cpe:2.3:a:tor:tor:0.1.0.18:*:*:*:*:*:*:*
tor tor 0.1.0.19 cpe:2.3:a:tor:tor:0.1.0.19:*:*:*:*:*:*:*
tor tor 0.1.1 cpe:2.3:a:tor:tor:0.1.1:*:*:*:*:*:*:*
tor tor 0.1.1.1 cpe:2.3:a:tor:tor:0.1.1.1:*:*:*:*:*:*:*
tor tor 0.1.1.1 cpe:2.3:a:tor:tor:0.1.1.1:alpha:*:*:*:*:*:*
tor tor 0.1.1.2 cpe:2.3:a:tor:tor:0.1.1.2:*:*:*:*:*:*:*
tor tor 0.1.1.2 cpe:2.3:a:tor:tor:0.1.1.2:alpha:*:*:*:*:*:*
tor tor 0.1.1.3 cpe:2.3:a:tor:tor:0.1.1.3:*:*:*:*:*:*:*
tor tor 0.1.1.3 cpe:2.3:a:tor:tor:0.1.1.3:alpha:*:*:*:*:*:*
tor tor 0.1.1.4 cpe:2.3:a:tor:tor:0.1.1.4:*:*:*:*:*:*:*
tor tor 0.1.1.4 cpe:2.3:a:tor:tor:0.1.1.4:alpha:*:*:*:*:*:*
tor tor 0.1.1.5 cpe:2.3:a:tor:tor:0.1.1.5:*:*:*:*:*:*:*
tor tor 0.1.1.5 cpe:2.3:a:tor:tor:0.1.1.5:alpha:*:*:*:*:*:*
tor tor 0.1.1.6 cpe:2.3:a:tor:tor:0.1.1.6:*:*:*:*:*:*:*
tor tor 0.1.1.6 cpe:2.3:a:tor:tor:0.1.1.6:alpha:*:*:*:*:*:*
tor tor 0.1.1.7 cpe:2.3:a:tor:tor:0.1.1.7:*:*:*:*:*:*:*
tor tor 0.1.1.7 cpe:2.3:a:tor:tor:0.1.1.7:alpha:*:*:*:*:*:*
tor tor 0.1.1.8 cpe:2.3:a:tor:tor:0.1.1.8:*:*:*:*:*:*:*
tor tor 0.1.1.8 cpe:2.3:a:tor:tor:0.1.1.8:alpha:*:*:*:*:*:*
tor tor 0.1.1.9 cpe:2.3:a:tor:tor:0.1.1.9:*:*:*:*:*:*:*
tor tor 0.1.1.9 cpe:2.3:a:tor:tor:0.1.1.9:alpha:*:*:*:*:*:*
tor tor 0.1.1.10 cpe:2.3:a:tor:tor:0.1.1.10:*:*:*:*:*:*:*
tor tor 0.1.1.10 cpe:2.3:a:tor:tor:0.1.1.10:alpha:*:*:*:*:*:*
tor tor 0.1.1.11 cpe:2.3:a:tor:tor:0.1.1.11:*:*:*:*:*:*:*
tor tor 0.1.1.12 cpe:2.3:a:tor:tor:0.1.1.12:*:*:*:*:*:*:*
tor tor 0.1.1.13 cpe:2.3:a:tor:tor:0.1.1.13:*:*:*:*:*:*:*
tor tor 0.1.1.14 cpe:2.3:a:tor:tor:0.1.1.14:*:*:*:*:*:*:*
tor tor 0.1.1.15 cpe:2.3:a:tor:tor:0.1.1.15:*:*:*:*:*:*:*
tor tor 0.1.1.16 cpe:2.3:a:tor:tor:0.1.1.16:*:*:*:*:*:*:*
tor tor 0.1.1.17 cpe:2.3:a:tor:tor:0.1.1.17:*:*:*:*:*:*:*
tor tor 0.1.1.18 cpe:2.3:a:tor:tor:0.1.1.18:*:*:*:*:*:*:*
tor tor 0.1.1.19 cpe:2.3:a:tor:tor:0.1.1.19:*:*:*:*:*:*:*
tor tor 0.1.1.20 cpe:2.3:a:tor:tor:0.1.1.20:*:*:*:*:*:*:*
tor tor 0.1.1.21 cpe:2.3:a:tor:tor:0.1.1.21:*:*:*:*:*:*:*
tor tor 0.1.1.22 cpe:2.3:a:tor:tor:0.1.1.22:*:*:*:*:*:*:*
tor tor 0.1.1.23 cpe:2.3:a:tor:tor:0.1.1.23:*:*:*:*:*:*:*
tor tor 0.1.1.25 cpe:2.3:a:tor:tor:0.1.1.25:*:*:*:*:*:*:*
tor tor 0.1.1.26 cpe:2.3:a:tor:tor:0.1.1.26:*:*:*:*:*:*:*

CVE-2011-4895 的參考連結

cvelogic Threat Intelligence