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.
CVE-2011-1147 is a security vulnerability that . Impacting 3 products from digium, from digium, from digium organizations running these solutions should prioritize assessment and patching.
Documented in 2011, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.
2011-03-15T17:55:05.953
2025-04-11T00:51:21.963
Deferred
CVSSv2: 6.8 (MEDIUM)
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | digium | asterisk | 1.4.0 | Yes |
| Application | digium | asterisk | 1.4.0 | Yes |
| Application | digium | asterisk | 1.4.0 | Yes |
| Application | digium | asterisk | 1.4.0 | Yes |
| Application | digium | asterisk | 1.4.0 | Yes |
| Application | digium | asterisk | 1.4.1 | Yes |
| Application | digium | asterisk | 1.4.2 | Yes |
| Application | digium | asterisk | 1.4.3 | Yes |
| Application | digium | asterisk | 1.4.10 | Yes |
| Application | digium | asterisk | 1.4.10.1 | Yes |
| Application | digium | asterisk | 1.4.11 | Yes |
| Application | digium | asterisk | 1.4.12 | Yes |
| Application | digium | asterisk | 1.4.12.1 | Yes |
| Application | digium | asterisk | 1.4.13 | Yes |
| Application | digium | asterisk | 1.4.14 | Yes |
| Application | digium | asterisk | 1.4.15 | Yes |
| Application | digium | asterisk | 1.4.16 | Yes |
| Application | digium | asterisk | 1.4.16.1 | Yes |
| Application | digium | asterisk | 1.4.16.2 | Yes |
| Application | digium | asterisk | 1.4.17 | Yes |
| Application | digium | asterisk | 1.4.18 | Yes |
| Application | digium | asterisk | 1.4.19 | Yes |
| Application | digium | asterisk | 1.4.19 | Yes |
| Application | digium | asterisk | 1.4.19 | Yes |
| Application | digium | asterisk | 1.4.19 | Yes |
| Application | digium | asterisk | 1.4.19 | Yes |
| Application | digium | asterisk | 1.4.19.1 | Yes |
| Application | digium | asterisk | 1.4.19.2 | Yes |
| Application | digium | asterisk | 1.4.20 | Yes |
| Application | digium | asterisk | 1.4.20 | Yes |
| Application | digium | asterisk | 1.4.20 | Yes |
| Application | digium | asterisk | 1.4.20 | Yes |
| Application | digium | asterisk | 1.4.20.1 | Yes |
| Application | digium | asterisk | 1.4.21 | Yes |
| Application | digium | asterisk | 1.4.21 | Yes |
| Application | digium | asterisk | 1.4.21 | Yes |
| Application | digium | asterisk | 1.4.21.1 | Yes |
| Application | digium | asterisk | 1.4.21.2 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22 | Yes |
| Application | digium | asterisk | 1.4.22.1 | Yes |
| Application | digium | asterisk | 1.4.22.2 | Yes |
| Application | digium | asterisk | 1.4.23 | Yes |
| Application | digium | asterisk | 1.4.23 | Yes |
| Application | digium | asterisk | 1.4.23 | Yes |
| Application | digium | asterisk | 1.4.23 | Yes |
| Application | digium | asterisk | 1.4.23 | Yes |
| Application | digium | asterisk | 1.4.23.1 | Yes |
| Application | digium | asterisk | 1.4.23.2 | Yes |
| Application | digium | asterisk | 1.4.24 | Yes |
| Application | digium | asterisk | 1.4.24 | Yes |
| Application | digium | asterisk | 1.4.24.1 | Yes |
| Application | digium | asterisk | 1.4.25 | Yes |
| Application | digium | asterisk | 1.4.25 | Yes |
| Application | digium | asterisk | 1.4.25.1 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26 | Yes |
| Application | digium | asterisk | 1.4.26.1 | Yes |
| Application | digium | asterisk | 1.4.26.2 | Yes |
| Application | digium | asterisk | 1.4.26.3 | Yes |
| Application | digium | asterisk | 1.4.27 | Yes |
| Application | digium | asterisk | 1.4.27 | Yes |
| Application | digium | asterisk | 1.4.27 | Yes |
| Application | digium | asterisk | 1.4.27 | Yes |
| Application | digium | asterisk | 1.4.27 | Yes |
| Application | digium | asterisk | 1.4.27 | Yes |
| Application | digium | asterisk | 1.4.27.1 | Yes |
| Application | digium | asterisk | 1.4.28 | Yes |
| Application | digium | asterisk | 1.4.28 | Yes |
| Application | digium | asterisk | 1.4.29 | Yes |
| Application | digium | asterisk | 1.4.29 | Yes |
| Application | digium | asterisk | 1.4.29.1 | Yes |
| Application | digium | asterisk | 1.4.30 | Yes |
| Application | digium | asterisk | 1.4.30 | Yes |
| Application | digium | asterisk | 1.4.30 | Yes |
| Application | digium | asterisk | 1.4.31 | Yes |
| Application | digium | asterisk | 1.4.31 | Yes |
| Application | digium | asterisk | 1.4.31 | Yes |
| Application | digium | asterisk | 1.4.32 | Yes |
| Application | digium | asterisk | 1.4.32 | Yes |
| Application | digium | asterisk | 1.4.33 | Yes |
| Application | digium | asterisk | 1.4.33 | Yes |
| Application | digium | asterisk | 1.4.33 | Yes |
| Application | digium | asterisk | 1.4.33.1 | Yes |
| Application | digium | asterisk | 1.4.34 | Yes |
| Application | digium | asterisk | 1.4.34 | Yes |
| Application | digium | asterisk | 1.4.34 | Yes |
| Application | digium | asterisk | 1.4.35 | Yes |
| Application | digium | asterisk | 1.4.35 | Yes |
| Application | digium | asterisk | 1.4.36 | Yes |
| Application | digium | asterisk | 1.4.36 | Yes |
| Application | digium | asterisk | 1.4.37 | Yes |
| Application | digium | asterisk | 1.4.37 | Yes |
| Application | digium | asterisk | 1.4.38 | Yes |
| Application | digium | asterisk | 1.4.38 | Yes |
| Application | digium | asterisk | 1.4.39 | Yes |
| Application | digium | asterisk | 1.4.39 | Yes |
| Application | digium | asterisk | 1.4.39.1 | Yes |
| Application | digium | asterisk | 1.6.2.0 | Yes |
| Application | digium | asterisk | 1.6.2.0 | Yes |
| Application | digium | asterisk | 1.6.2.0 | Yes |
| Application | digium | asterisk | 1.6.2.0 | Yes |
| Application | digium | asterisk | 1.6.2.0 | Yes |
| Application | digium | asterisk | 1.6.2.0 | Yes |
| Application | digium | asterisk | 1.6.2.0 | Yes |
| Application | digium | asterisk | 1.6.2.0 | Yes |
| Application | digium | asterisk | 1.6.2.1 | Yes |
| Application | digium | asterisk | 1.6.2.1 | Yes |
| Application | digium | asterisk | 1.6.2.2 | Yes |
| Application | digium | asterisk | 1.6.2.3 | Yes |
| Application | digium | asterisk | 1.6.2.4 | Yes |
| Application | digium | asterisk | 1.6.2.5 | Yes |
| Application | digium | asterisk | 1.6.2.6 | Yes |
| Application | digium | asterisk | 1.6.2.6 | Yes |
| Application | digium | asterisk | 1.6.2.6 | Yes |
| Application | digium | asterisk | 1.6.2.15 | Yes |
| Application | digium | asterisk | 1.6.2.16 | Yes |
| Application | digium | asterisk | 1.6.2.16 | Yes |
| Application | digium | asterisk | 1.6.2.16.1 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.0 | Yes |
| Application | digium | asterisk | 1.8.1 | Yes |
| Application | digium | asterisk | 1.8.1 | Yes |
| Application | digium | asterisk | 1.8.1.1 | Yes |
| Application | digium | asterisk | 1.8.1.2 | Yes |
| Application | digium | asterisk | 1.8.2 | Yes |
| Application | digium | asterisk | 1.8.2.1 | Yes |
| Application | digium | asterisk | 1.8.2.2 | Yes |
| Application | digium | asterisk | 1.8.2.3 | Yes |
| Application | digium | asterisk | c.1.0 | Yes |
| Application | digium | asterisk | c.1.0 | Yes |
| Application | digium | asterisk | c.1.6 | Yes |
| Application | digium | asterisk | c.1.6.1 | Yes |
| Application | digium | asterisk | c.1.6.2 | Yes |
| Application | digium | asterisk | c.1.8.0 | Yes |
| Application | digium | asterisk | c.1.8.1 | Yes |
| Application | digium | asterisk | c.2.3 | Yes |
| Application | digium | asterisk | c.3.0 | Yes |
| Application | digium | asterisk | c.3.1.0 | Yes |
| Application | digium | asterisk | c.3.1.1 | Yes |
| Application | digium | asterisk | c.3.2.2 | Yes |
| Application | digium | asterisk | c.3.2.3 | Yes |
| Application | digium | asterisk | c.3.3.2 | Yes |
| Application | digium | asterisk | c.3.6.2 | Yes |
| Application | digium | asterisknow | 1.5 | Yes |
| Hardware | digium | s800i | * | Yes |
| Application | digium | asterisk | 1.6.1.0 | Yes |
| Application | digium | asterisk | 1.6.1.0 | Yes |
| Application | digium | asterisk | 1.6.1.0 | Yes |
| Application | digium | asterisk | 1.6.1.0 | Yes |
| Application | digium | asterisk | 1.6.1.0 | Yes |
| Application | digium | asterisk | 1.6.1.1 | Yes |
| Application | digium | asterisk | 1.6.1.2 | Yes |
| Application | digium | asterisk | 1.6.1.3 | Yes |
| Application | digium | asterisk | 1.6.1.4 | Yes |
| Application | digium | asterisk | 1.6.1.5 | Yes |
| Application | digium | asterisk | 1.6.1.5 | Yes |
| Application | digium | asterisk | 1.6.1.6 | Yes |
| Application | digium | asterisk | 1.6.1.7 | Yes |
| Application | digium | asterisk | 1.6.1.7 | Yes |
| Application | digium | asterisk | 1.6.1.8 | Yes |
| Application | digium | asterisk | 1.6.1.9 | Yes |
| Application | digium | asterisk | 1.6.1.10 | Yes |
| Application | digium | asterisk | 1.6.1.10 | Yes |
| Application | digium | asterisk | 1.6.1.10 | Yes |
| Application | digium | asterisk | 1.6.1.10 | Yes |
| Application | digium | asterisk | 1.6.1.11 | Yes |
| Application | digium | asterisk | 1.6.1.12 | Yes |
| Application | digium | asterisk | 1.6.1.12 | Yes |
| Application | digium | asterisk | 1.6.1.13 | Yes |
| Application | digium | asterisk | 1.6.1.13 | Yes |
| Application | digium | asterisk | 1.6.1.14 | Yes |
| Application | digium | asterisk | 1.6.1.15 | Yes |
| Application | digium | asterisk | 1.6.1.16 | Yes |
| Application | digium | asterisk | 1.6.1.17 | Yes |
| Application | digium | asterisk | 1.6.1.18 | Yes |
| Application | digium | asterisk | 1.6.1.18 | Yes |
| Application | digium | asterisk | 1.6.1.18 | Yes |
| Application | digium | asterisk | 1.6.1.19 | Yes |
| Application | digium | asterisk | 1.6.1.19 | Yes |
| Application | digium | asterisk | 1.6.1.19 | Yes |
| Application | digium | asterisk | 1.6.1.19 | Yes |
| Application | digium | asterisk | 1.6.1.20 | Yes |
| Application | digium | asterisk | 1.6.1.20 | Yes |
| Application | digium | asterisk | 1.6.1.20 | Yes |
| Application | digium | asterisk | 1.6.1.21 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For digium's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.