Asterisk 13.x < 13.18.4 / 14.x < 14.7.4 / 15.x < 15.1.4 / 13.13 < 13.13-cert9 Improper Memory Storage Remote DoS (AST-2017-012)

medium Nessus Plugin ID 105390

Language:

Synopsis

A telephony application running on the remote host is affected by a memory exhaustion remote denial of service vulnerability.

Description

According to its SIP banner, the version of Asterisk running on the remote host is 13.x prior to 13.18.4, 14.x prior to 14.7.4, 15.x prior to 15.1.4, or 13.13 prior to 13.13-cert9. It is therefore, affected by an improper memory storage remote denial of service attack as described in AST-2017-012.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Asterisk version 13.18.4 / 14.7.4 / 15.1.4 / 13.13-cert9 or later.

Plugin Details

Severity: Medium

ID: 105390

File Name: asterisk_ast_2017_012.nasl

Version: 1.5

Type: remote

Family: Misc.

Published: 12/20/2017

Updated: 4/11/2022

Configuration: Enable paranoid mode, Enable thorough checks

Supported Sensors: Nessus

Risk Information

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/a:digium:asterisk

Required KB Items: Settings/ParanoidReport, asterisk/sip_detected

Patch Publication Date: 12/13/2017

Vulnerability Publication Date: 10/30/2017

Reference Information

BID: 102023

Detections

Analytics