Asterisk SIP Channel Driver Invalid SDP Denial of Service (AST-2013-005)

Medium Nessus Network Monitor Plugin ID 8007

Synopsis

The remote VoIP server is affected by a denial of service vulnerability

Description

According to the version in its SIP banner, the version of Asterisk running on the remote host is potentially affected by a denial of service vulnerability. The application does not properly handle an invalid SDP in a SIP request if such a request defines media descriptions and then defines connection data.

Solution

Upgrade to Asterisk 1.8.23.1 / 10.12.3 / 11.5.1 / Certified Asterisk 1.8.15-cert3 / 11.2-cert2, or apply the appropriate patch listed in the Asterisk advisory.

See Also

http://www.nessus.org/u?0ab2e5f6

http://downloads.asterisk.org/pub/security/AST-2013-005.html

https://issues.asterisk.org/jira/browse/ASTERISK-22007

Plugin Details

Severity: Medium

ID: 8007

Family: Generic

Published: 2013/09/10

Modified: 2017/01/31

Dependencies: 3768

Nessus ID: 69559

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5

Temporal Score: 3.7

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

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

CVSSv3

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS3#AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS3#E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:digium:asterisk

Patch Publication Date: 2013/08/27

Vulnerability Publication Date: 2013/08/27

Reference Information

CVE: CVE-2013-5642

BID: 62022