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

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CVE-2016-7551

Severity CVSS v4.0:
Pending analysis
Type:
CWE-399 Resource Management Errors
Publication date:
17/04/2017
Last modified:
20/04/2025

Description

chain_sip in Asterisk Open Source 11.x before 11.23.1 and 13.x 13.11.1 and Certified Asterisk 11.6 before 11.6-cert15 and 13.8 before 13.8-cert3 allows remote attackers to cause a denial of service (port exhaustion).

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
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:11.0.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.0.0:beta1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.0.0:beta2:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.0.1:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.0.2:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.1.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.1.0:rc1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.1.0:rc3:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.1.1:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.1.2:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.2.0:*:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.2.0:rc1:*:*:*:*:*:*
cpe:2.3:a:digium:asterisk:11.2.0:rc2:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools