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Overview

Vulnerability Score 7.8 7.8
CVE Id CVE-2007-4103
Last Modified 07 Mar 2011 09:57:48
Published 31 Jul 2007 06:17:00
Confidentiality Impact NONE NONE
Integrity Impact NONE NONE
Availability Impact COMPLETE COMPLETE
Access Vector NETWORK
Access Complexity LOW
Authentication NONE

CVE-2007-4103

Summary

The IAX2 channel driver (chan_iax2) in Asterisk Open 1.2.x before 1.2.23, 1.4.x before 1.4.9, and Asterisk Appliance Developer Kit before 0.6.0, when configured to allow unauthenticated calls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of calls that do not complete a 3-way handshake, which causes an ast_channel to be allocated but not released.

Vulnerable Systems

Application

  • Digium Asterisk 1.2.20

  • Digium Asterisk 1.2.21

  • Digium Asterisk 1.2.21.1

  • Digium Asterisk 1.2.22

  • Digium Asterisk 1.4.5

  • Digium Asterisk 1.4.7

  • Digium Asterisk 1.4.7.1

  • Digium Asterisk 1.4.8

  • Digium Asterisk Appliance Developer Kit 0.5.0

  • Digium Asterisknow Pre-release Beta6


References

SECUNIA - 26274

CONFIRM - http://ftp.digium.com/pub/asa/ASA-2007-018.pdf

VUPEN - ADV-2007-2701

SECTRACK - 1018472

BUGTRAQ - 20070729 ASA-2007-018: Resource exhaustion vulnerability in IAX2 channel driver

OSVDB - 38197

BID - 24950

SREASON - 2960

GENTOO - GLSA-200802-11

SECUNIA - 29051

CONFIRM - http://bugs.gentoo.org/show_bug.cgi?id=185713


Last Updated: 27 May 2016 10:45:46