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

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2013-5642

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
09/09/2013
Last modified:
11/04/2025

Description

The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.x before 1.8.23.1, 10.x before 10.12.3, and 11.x before 11.5.1; Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2; and Asterisk Digiumphones 10.x-digiumphones before 10.12.3-digiumphones allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an invalid SDP that defines a media description before the connection description in a SIP request.

Impact

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

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

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

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:digium:asterisk:1.8.17.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.17.0:rc1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.17.0:rc2:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.17.0:rc3:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.18.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.18.0:rc1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.18.1:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.19.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.19.0:rc1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.19.0:rc3:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.19.1:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.20.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.20.0:rc1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.20.0:rc2:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.8.21.0:rc1:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools