Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-1147

Severity CVSS v4.0:
Pending analysis
Type:
CWE-119 Buffer Errors
Publication date:
15/03/2011
Last modified:
11/04/2025

Description

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.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:digium:asterisk:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.0:beta1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.0:beta2:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.0:beta3:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.0:beta4:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.2:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.3:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.10:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.10.1:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.11:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.12:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.12.1:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.13:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.14:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools