what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

Asterisk Project Security Advisory - AST-2018-009

Asterisk Project Security Advisory - AST-2018-009
Posted Sep 20, 2018
Authored by Richard Mudgett | Site asterisk.org

Asterisk Project Security Advisory - There is a stack overflow vulnerability in the res_http_websocket.so module of Asterisk that allows an attacker to crash Asterisk via a specially crafted HTTP request to upgrade the connection to a websocket. The attacker's request causes Asterisk to run out of stack space and crash.

tags | advisory, web, overflow
advisories | CVE-2018-17281
SHA-256 | 999593047c91cf17e94b5126542d0b61c193e900ccb49dfceb842eb260de225f

Asterisk Project Security Advisory - AST-2018-009

Change Mirror Download
               Asterisk Project Security Advisory - AST-2018-009

Product Asterisk
Summary Remote crash vulnerability in HTTP websocket upgrade
Nature of Advisory Denial Of Service
Susceptibility Remote Unauthenticated Sessions
Severity Moderate
Exploits Known No
Reported On August 16, 2018
Reported By Sean Bright
Posted On
Last Updated On September 20, 2018
Advisory Contact Rmudgett AT digium DOT com
CVE Name CVE-2018-17281

Description There is a stack overflow vulnerability in the
res_http_websocket.so module of Asterisk that allows an
attacker to crash Asterisk via a specially crafted HTTP
request to upgrade the connection to a websocket. The
attackeras request causes Asterisk to run out of stack
space and crash.

Resolution Disable HTTP websocket access by not loading the
res_http_websocket.so module or upgrade Asterisk to a fixed
version.

Affected Versions
Product Release
Series
Asterisk Open Source 13.x All releases
Asterisk Open Source 14.x All releases
Asterisk Open Source 15.x All releases
Certified Asterisk 13.21 All releases

Corrected In
Product Release
Asterisk Open Source 13.23.1, 14.7.8, 15.6.1
Certified Asterisk 13.21-cert3

Patches
SVN URL Revision
http://downloads.asterisk.org/pub/security/AST-2018-009-13.diff Asterisk
13
http://downloads.asterisk.org/pub/security/AST-2018-009-14.diff Asterisk
14
http://downloads.asterisk.org/pub/security/AST-2018-009-15.diff Asterisk
15
http://downloads.asterisk.org/pub/security/AST-2018-009-13.21.diff Certified
Asterisk
13.21

Links https://issues.asterisk.org/jira/browse/ASTERISK-28013

Asterisk Project Security Advisories are posted at
http://www.asterisk.org/security

This document may be superseded by later versions; if so, the latest
version will be posted at
http://downloads.digium.com/pub/security/AST-2018-009.pdf and
http://downloads.digium.com/pub/security/AST-2018-009.html

Revision History
Date Editor Revisions Made
August 31, 2018 Richard Mudgett Initial revision
September 20, 2018 Richard Mudgett Added CVE name.

Asterisk Project Security Advisory - AST-2018-009
Copyright A(c) 2018 Digium, Inc. All Rights Reserved.
Permission is hereby granted to distribute and publish this advisory in its
original, unaltered form.
Login or Register to add favorites

File Archive:

February 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Feb 1st
    16 Files
  • 2
    Feb 2nd
    19 Files
  • 3
    Feb 3rd
    0 Files
  • 4
    Feb 4th
    0 Files
  • 5
    Feb 5th
    24 Files
  • 6
    Feb 6th
    2 Files
  • 7
    Feb 7th
    10 Files
  • 8
    Feb 8th
    25 Files
  • 9
    Feb 9th
    37 Files
  • 10
    Feb 10th
    0 Files
  • 11
    Feb 11th
    0 Files
  • 12
    Feb 12th
    17 Files
  • 13
    Feb 13th
    20 Files
  • 14
    Feb 14th
    25 Files
  • 15
    Feb 15th
    15 Files
  • 16
    Feb 16th
    6 Files
  • 17
    Feb 17th
    0 Files
  • 18
    Feb 18th
    0 Files
  • 19
    Feb 19th
    35 Files
  • 20
    Feb 20th
    25 Files
  • 21
    Feb 21st
    18 Files
  • 22
    Feb 22nd
    15 Files
  • 23
    Feb 23rd
    0 Files
  • 24
    Feb 24th
    10 Files
  • 25
    Feb 25th
    0 Files
  • 26
    Feb 26th
    37 Files
  • 27
    Feb 27th
    34 Files
  • 28
    Feb 28th
    0 Files
  • 29
    Feb 29th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close