Asterisk 13.x < 13.18.3 / 14.x < 14.7.3 / 15.x < 15.1.3 / 13.13 < 13.13-cert8 Memory Exhaustion Remote DoS (AST-2017-013)

Medium Nessus Plugin ID 105041

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 13.18.3, 14.x prior to 14.7.3, 15.x prior to 15.1.3, or 13.13 prior to 13.13-cert8. It is therefore, affected by a memory exhaustion remote denial-of-service attack as described in AST-2017-013.

Also 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 13.18.3 / 14.7.3 / 15.1.3 / 13.13-cert8 or later.

See Also

http://downloads.asterisk.org/pub/security/AST-2017-013.html

Plugin Details

Severity: Medium

ID: 105041

File Name: asterisk_ast_2017_013.nasl

Version: 1.7

Type: remote

Family: Misc.

Published: 2017/12/06

Updated: 2019/11/12

Dependencies: 63202

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2017-17090

CVSS v2.0

Base Score: 5

Temporal Score: 3.9

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

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

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: cpe:/a:digium:asterisk

Required KB Items: asterisk/sip_detected, Settings/ParanoidReport

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/12/01

Vulnerability Publication Date: 2017/11/29

Reference Information

CVE: CVE-2017-17090

BID: 102023