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.
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 |