CVE-2018-17281

HIGH

Asterisk 13.0.0-13.23.0, 14.0.0-14.7.7, 15.0.0-15.6.0 DoS via WebSocket Upgrade

Title source: llm
STIX 2.1

Description

There is a stack consumption vulnerability in the res_http_websocket.so module of Asterisk through 13.23.0, 14.7.x through 14.7.7, and 15.x through 15.6.0 and Certified Asterisk through 13.21-cert2. It allows an attacker to crash Asterisk via a specially crafted HTTP request to upgrade the connection to a websocket.

References (10)

Core 10
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1041694
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2018/Sep/31
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2018/dsa-4320
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_bugtraq
https://seclists.org/bugtraq/2018/Sep/53
Issue Tracking, Third Party Advisory x_refsource_confirm
https://issues.asterisk.org/jira/browse/ASTERISK-28013
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2018/09/msg00034.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201811-11
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/105389
Patch, Vendor Advisory x_refsource_confirm
http://downloads.asterisk.org/pub/security/AST-2018-009.html

Scores

CVSS v3 7.5
EPSS 0.5338
EPSS Percentile 98.9%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-400
Status published
Products (10)
debian/debian_linux 8.0
debian/debian_linux 9.0
digium/asterisk 13.0.0 - 13.23.0
digium/asterisk 14.0.0 - 14.7.7
digium/asterisk 15.0.0 - 15.6.0
digium/certified_asterisk 11.6 cert12 (7 CPE variants)
digium/certified_asterisk 13.1 cert3 (6 CPE variants)
digium/certified_asterisk 13.8 cert1 (4 CPE variants)
digium/certified_asterisk 13.13 cert1 (9 CPE variants)
digium/certified_asterisk 13.21 cert1 (2 CPE variants)
Published Sep 24, 2018
Tracked Since Feb 18, 2026