Asterisk Multiple Vulnerabilities (AST-2013-001 / AST-2013-002 / AST-2013-003)

High Nessus Network Monitor Plugin ID 6750


The remote VoIP server is affected by multiple vulnerabilities.


According to the version in its SIP banner, the version of Asterisk running on the remote host is potentially affected by the following vulnerabilities :

- A buffer overflow exists in the SIP SDP headers and h264 video handling. NOTE:Only Affects version less than 11.2.2 (CVE-2013-2685)

- A denial of server exists in the HTTP POST requests with very large 'Conten-Length' header values. (CVE-2013-2686)

- An information disclosure exists in the INVITE, SUBSCRIBE and REGISTER transactions and improper settings for the configureatio options. (CVE-2013-2264)


Upgrade to Asterisk / 10.12.2 / 11.2.2, Certified Asterisk 1.8.15-cert2 or apply the patches listed in the Asterisk advisory

See Also

Plugin Details

Severity: High

ID: 6750

Family: Generic

Published: 2013/04/10

Updated: 2019/03/06

Dependencies: 3768

Nessus ID: 65896, 65897, 65898

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 9.3

Temporal Score: 6.9

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:digium:asterisk

Patch Publication Date: 2013/03/27

Vulnerability Publication Date: 2013/02/27

Reference Information

CVE: CVE-2013-2685, CVE-2013-2686, CVE-2013-2264

BID: 58756, 58760, 58764