exploit the possibilities

Asterisk Project Security Advisory - AST-2012-010

Asterisk Project Security Advisory - AST-2012-010
Posted Jul 6, 2012
Authored by Terry Wilson, Steve Davies | Site asterisk.org

Asterisk Project Security Advisory - If Asterisk sends a re-invite and an endpoint responds to the re-invite with a provisional response but never sends a final response, then the SIP dialog structure is never freed and the RTP ports for the call are never released. If an attacker has the ability to place a call, they could create a denial of service by using all available RTP ports.

tags | advisory, denial of service
MD5 | 97efa304659dce2c49033c6d442bd34c

Asterisk Project Security Advisory - AST-2012-010

Change Mirror Download
               Asterisk Project Security Advisory - AST-2012-010

Product Asterisk
Summary Possible resource leak on uncompleted re-invite
transactions
Nature of Advisory Denial of Service
Susceptibility Remote authenticated sessions
Severity Minor
Exploits Known No
Reported On June 13, 2012
Reported By Steve Davies
Posted On July 5, 2012
Last Updated On July 5, 2012
Advisory Contact Terry Wilson <twilson@digium.com>
CVE Name TBD

Description If Asterisk sends a re-invite and an endpoint responds to
the re-invite with a provisional response but never sends a
final response, then the SIP dialog structure is never
freed and the RTP ports for the call are never released. If
an attacker has the ability to place a call, they could
create a denial of service by using all available RTP
ports.

Resolution A re-invite that receives a provisional response without a
final response is detected and properly cleaned up at
hangup.

Affected Versions
Product Release Series
Asterisk Open Source 1.8.x All versions
Asterisk Open Source 10.x All versions
Asterisk Business Edition C.3.x All versions
Certified Asterisk 1.8.11-certx All versions
Asterisk Digiumphones 10.x.x-digiumphones All versions

Corrected In
Product Release
Asterisk Open Source 1.8.13.1, 10.5.2
Asterisk Business Edition C.3.7.5
Certified Asterisk 1.8.11-cert4
Asterisk Digiumphones 10.5.2-digiumphones

Patches
URL Revision
http://downloads.asterisk.org/pub/security/AST-2012-010-1.8.diff Asterisk
1.8
http://downloads.asterisk.org/pub/security/AST-2012-010-10.diff Asterisk
10

Links https://issues.asterisk.org/jira/browse/ASTERISK-19992

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This document may be superseded by later versions; if so, the latest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-2012-010.pdf and
http://downloads.digium.com/pub/security/AST-2012-010.html

Revision History
Date Editor Revisions Made
06/27/2012 Terry Wilson Initial Release

Asterisk Project Security Advisory - AST-2012-010
Copyright (c) 2012 Digium, Inc. All Rights Reserved.
Permission is hereby granted to distribute and publish this advisory in its
original, unaltered form.


Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

September 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Sep 1st
    1 Files
  • 2
    Sep 2nd
    38 Files
  • 3
    Sep 3rd
    30 Files
  • 4
    Sep 4th
    15 Files
  • 5
    Sep 5th
    12 Files
  • 6
    Sep 6th
    17 Files
  • 7
    Sep 7th
    3 Files
  • 8
    Sep 8th
    1 Files
  • 9
    Sep 9th
    24 Files
  • 10
    Sep 10th
    22 Files
  • 11
    Sep 11th
    22 Files
  • 12
    Sep 12th
    15 Files
  • 13
    Sep 13th
    5 Files
  • 14
    Sep 14th
    2 Files
  • 15
    Sep 15th
    1 Files
  • 16
    Sep 16th
    11 Files
  • 17
    Sep 17th
    16 Files
  • 18
    Sep 18th
    8 Files
  • 19
    Sep 19th
    14 Files
  • 20
    Sep 20th
    20 Files
  • 21
    Sep 21st
    3 Files
  • 22
    Sep 22nd
    0 Files
  • 23
    Sep 23rd
    0 Files
  • 24
    Sep 24th
    0 Files
  • 25
    Sep 25th
    0 Files
  • 26
    Sep 26th
    0 Files
  • 27
    Sep 27th
    0 Files
  • 28
    Sep 28th
    0 Files
  • 29
    Sep 29th
    0 Files
  • 30
    Sep 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close