Multiple stack-based and heap-based buffer overflows in the (1) decode_open_type and (2) udptl_rx_packet functions in main/udptl.c in Asterisk Open Source 1.4.x before 1.4.39.2, 1.6.1.x before 1.6.1.22, 1.6.2.x before 1.6.2.16.2, and 1.8 before 1.8.2.4; Business Edition C.x.x before C.3.6.3; AsteriskNOW 1.5; and s800i (Asterisk Appliance), when T.38 support is enabled, allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted UDPTL packet.
結論預警: CVE-2011-1147 綜合評估為中等風險（58/100）：CVSS 技術影響為中級，利用機率（EPSS 3.52%） 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 | 3.42% | 3.52% | +0.10% |
| 2 | 2025-09-14 | 2.83% | 3.42% | +0.59% |
| 3 | 2025-03-30 | — | 2.83% | — |
完整 EPSS 歷史 （共 12 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 |
|---|---|---|---|
debian
|
not yet assigned | CVE-2011-1147 not yet assigned priority: Debian including 1 source packages (asterisk), 2 status rows across 2 suites (bullseye, sid): resolved 2. | https://security-tracker.debian.org/tracker/CVE-2011-1147 |
gentoo
|
high | CVE-2011-1147: 1 GLSA(s) (201110-21), 1 atom(s) (net-misc/asterisk); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-1147 |
ubuntu
|
medium | CVE-2011-1147 medium priority: Ubuntu including 1 source packages (asterisk), 7 status rows across 7 suites (dapper, hardy, karmic, lucid, maverick, natty, upstream): released 4, ignored 3. | https://ubuntu.com/security/CVE-2011-1147 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| digium | asterisk | 1.4.0 | cpe:2.3:a:digium:asterisk:1.4.0:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.0 | cpe:2.3:a:digium:asterisk:1.4.0:beta1:*:*:*:*:*:* |
| digium | asterisk | 1.4.0 | cpe:2.3:a:digium:asterisk:1.4.0:beta2:*:*:*:*:*:* |
| digium | asterisk | 1.4.0 | cpe:2.3:a:digium:asterisk:1.4.0:beta3:*:*:*:*:*:* |
| digium | asterisk | 1.4.0 | cpe:2.3:a:digium:asterisk:1.4.0:beta4:*:*:*:*:*:* |
| digium | asterisk | 1.4.1 | cpe:2.3:a:digium:asterisk:1.4.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.2 | cpe:2.3:a:digium:asterisk:1.4.2:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.3 | cpe:2.3:a:digium:asterisk:1.4.3:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.10 | cpe:2.3:a:digium:asterisk:1.4.10:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.10.1 | cpe:2.3:a:digium:asterisk:1.4.10.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.11 | cpe:2.3:a:digium:asterisk:1.4.11:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.12 | cpe:2.3:a:digium:asterisk:1.4.12:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.12.1 | cpe:2.3:a:digium:asterisk:1.4.12.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.13 | cpe:2.3:a:digium:asterisk:1.4.13:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.14 | cpe:2.3:a:digium:asterisk:1.4.14:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.15 | cpe:2.3:a:digium:asterisk:1.4.15:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.16 | cpe:2.3:a:digium:asterisk:1.4.16:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.16.1 | cpe:2.3:a:digium:asterisk:1.4.16.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.16.2 | cpe:2.3:a:digium:asterisk:1.4.16.2:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.17 | cpe:2.3:a:digium:asterisk:1.4.17:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.18 | cpe:2.3:a:digium:asterisk:1.4.18:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.19 | cpe:2.3:a:digium:asterisk:1.4.19:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.19 | cpe:2.3:a:digium:asterisk:1.4.19:rc1:*:*:*:*:*:* |
| digium | asterisk | 1.4.19 | cpe:2.3:a:digium:asterisk:1.4.19:rc2:*:*:*:*:*:* |
| digium | asterisk | 1.4.19 | cpe:2.3:a:digium:asterisk:1.4.19:rc3:*:*:*:*:*:* |
| digium | asterisk | 1.4.19 | cpe:2.3:a:digium:asterisk:1.4.19:rc4:*:*:*:*:*:* |
| digium | asterisk | 1.4.19.1 | cpe:2.3:a:digium:asterisk:1.4.19.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.19.2 | cpe:2.3:a:digium:asterisk:1.4.19.2:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.20 | cpe:2.3:a:digium:asterisk:1.4.20:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.20 | cpe:2.3:a:digium:asterisk:1.4.20:rc1:*:*:*:*:*:* |
| digium | asterisk | 1.4.20 | cpe:2.3:a:digium:asterisk:1.4.20:rc2:*:*:*:*:*:* |
| digium | asterisk | 1.4.20 | cpe:2.3:a:digium:asterisk:1.4.20:rc3:*:*:*:*:*:* |
| digium | asterisk | 1.4.20.1 | cpe:2.3:a:digium:asterisk:1.4.20.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.21 | cpe:2.3:a:digium:asterisk:1.4.21:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.21 | cpe:2.3:a:digium:asterisk:1.4.21:rc1:*:*:*:*:*:* |
| digium | asterisk | 1.4.21 | cpe:2.3:a:digium:asterisk:1.4.21:rc2:*:*:*:*:*:* |
| digium | asterisk | 1.4.21.1 | cpe:2.3:a:digium:asterisk:1.4.21.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.21.2 | cpe:2.3:a:digium:asterisk:1.4.21.2:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.22 | cpe:2.3:a:digium:asterisk:1.4.22:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.22 | cpe:2.3:a:digium:asterisk:1.4.22:rc1:*:*:*:*:*:* |
| digium | asterisk | 1.4.22 | cpe:2.3:a:digium:asterisk:1.4.22:rc2:*:*:*:*:*:* |
| digium | asterisk | 1.4.22 | cpe:2.3:a:digium:asterisk:1.4.22:rc3:*:*:*:*:*:* |
| digium | asterisk | 1.4.22 | cpe:2.3:a:digium:asterisk:1.4.22:rc4:*:*:*:*:*:* |
| digium | asterisk | 1.4.22 | cpe:2.3:a:digium:asterisk:1.4.22:rc5:*:*:*:*:*:* |
| digium | asterisk | 1.4.22.1 | cpe:2.3:a:digium:asterisk:1.4.22.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.22.2 | cpe:2.3:a:digium:asterisk:1.4.22.2:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.23 | cpe:2.3:a:digium:asterisk:1.4.23:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.23 | cpe:2.3:a:digium:asterisk:1.4.23:rc1:*:*:*:*:*:* |
| digium | asterisk | 1.4.23 | cpe:2.3:a:digium:asterisk:1.4.23:rc2:*:*:*:*:*:* |
| digium | asterisk | 1.4.23 | cpe:2.3:a:digium:asterisk:1.4.23:rc3:*:*:*:*:*:* |
| digium | asterisk | 1.4.23 | cpe:2.3:a:digium:asterisk:1.4.23:rc4:*:*:*:*:*:* |
| digium | asterisk | 1.4.23.1 | cpe:2.3:a:digium:asterisk:1.4.23.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.23.2 | cpe:2.3:a:digium:asterisk:1.4.23.2:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.24 | cpe:2.3:a:digium:asterisk:1.4.24:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.24 | cpe:2.3:a:digium:asterisk:1.4.24:rc1:*:*:*:*:*:* |
| digium | asterisk | 1.4.24.1 | cpe:2.3:a:digium:asterisk:1.4.24.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.25 | cpe:2.3:a:digium:asterisk:1.4.25:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.25 | cpe:2.3:a:digium:asterisk:1.4.25:rc1:*:*:*:*:*:* |
| digium | asterisk | 1.4.25.1 | cpe:2.3:a:digium:asterisk:1.4.25.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.26 | cpe:2.3:a:digium:asterisk:1.4.26:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.26 | cpe:2.3:a:digium:asterisk:1.4.26:rc1:*:*:*:*:*:* |
| digium | asterisk | 1.4.26 | cpe:2.3:a:digium:asterisk:1.4.26:rc2:*:*:*:*:*:* |
| digium | asterisk | 1.4.26 | cpe:2.3:a:digium:asterisk:1.4.26:rc3:*:*:*:*:*:* |
| digium | asterisk | 1.4.26 | cpe:2.3:a:digium:asterisk:1.4.26:rc4:*:*:*:*:*:* |
| digium | asterisk | 1.4.26 | cpe:2.3:a:digium:asterisk:1.4.26:rc5:*:*:*:*:*:* |
| digium | asterisk | 1.4.26 | cpe:2.3:a:digium:asterisk:1.4.26:rc6:*:*:*:*:*:* |
| digium | asterisk | 1.4.26.1 | cpe:2.3:a:digium:asterisk:1.4.26.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.26.2 | cpe:2.3:a:digium:asterisk:1.4.26.2:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.26.3 | cpe:2.3:a:digium:asterisk:1.4.26.3:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.27 | cpe:2.3:a:digium:asterisk:1.4.27:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.27 | cpe:2.3:a:digium:asterisk:1.4.27:rc1:*:*:*:*:*:* |
| digium | asterisk | 1.4.27 | cpe:2.3:a:digium:asterisk:1.4.27:rc2:*:*:*:*:*:* |
| digium | asterisk | 1.4.27 | cpe:2.3:a:digium:asterisk:1.4.27:rc3:*:*:*:*:*:* |
| digium | asterisk | 1.4.27 | cpe:2.3:a:digium:asterisk:1.4.27:rc4:*:*:*:*:*:* |
| digium | asterisk | 1.4.27 | cpe:2.3:a:digium:asterisk:1.4.27:rc5:*:*:*:*:*:* |
| digium | asterisk | 1.4.27.1 | cpe:2.3:a:digium:asterisk:1.4.27.1:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.28 | cpe:2.3:a:digium:asterisk:1.4.28:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.28 | cpe:2.3:a:digium:asterisk:1.4.28:rc1:*:*:*:*:*:* |
| digium | asterisk | 1.4.29 | cpe:2.3:a:digium:asterisk:1.4.29:*:*:*:*:*:*:* |
| digium | asterisk | 1.4.29 | cpe:2.3:a:digium:asterisk:1.4.29:rc1:*:*:*:*:*:* |