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

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CVE-2009-0871

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
11/03/2009
Last modified:
09/04/2025

Description

The SIP channel driver in Asterisk Open Source 1.4.22, 1.4.23, and 1.4.23.1; 1.6.0 before 1.6.0.6; 1.6.1 before 1.6.1.0-rc2; and Asterisk Business Edition C.2.3, with the pedantic option enabled, allows remote authenticated users to cause a denial of service (crash) via a SIP INVITE request without any headers, which triggers a NULL pointer dereference in the (1) sip_uri_headers_cmp and (2) sip_uri_params_cmp functions.

Impact

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

Base Score: 3.50 LOW
Vector: AV:N/AC:M/Au:S/C:N/I:N/A:P

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

Base Score 2.0
3.50
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:digium:asterisk:1.4.22:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.23:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.4.23.1:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:beta1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:beta2:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:beta3:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:beta4:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:beta5:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:beta6:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:beta7:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:beta7.1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:beta8:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:beta9:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:1.6.0:rc4:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools