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CVE-2008-1897

Status Candidate

Overview

The IAX2 channel driver (chan_iax2) in Asterisk Open Source 1.0.x, 1.2.x before 1.2.28, and 1.4.x before 1.4.19.1; Business Edition A.x.x, B.x.x before B.2.5.2, and C.x.x before C.1.8.1; AsteriskNOW before 1.0.3; Appliance Developer Kit 0.x.x; and s800i before 1.1.0.3, when configured to allow unauthenticated calls, does not verify that an ACK response contains a call number matching the server's reply to a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed ACK response that does not complete a 3-way handshake. NOTE: this issue exists because of an incomplete fix for CVE-2008-1923.

Related Files

Gentoo Linux Security Advisory 200905-1
Posted May 3, 2009
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory GLSA 200905-01 - Multiple vulnerabilities have been found in Asterisk allowing for Denial of Service and username disclosure.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2008-1897, CVE-2008-2119, CVE-2008-3263, CVE-2008-3264, CVE-2008-3903, CVE-2008-5558, CVE-2009-0041
SHA-256 | 8a221aac12797d099e480341a469baefe427ff3bc8ee0f6cb9b7b14595721e9d
Debian Linux Security Advisory 1563-1
Posted May 1, 2008
Authored by Debian | Site debian.org

Debian Security Advisory 1563-1 - Joel R. Voss discovered that the IAX2 module of Asterisk, a free software PBX and telephony toolkit performs insufficient validation of IAX2 protocol messages, which may lead to denial of service.

tags | advisory, denial of service, protocol
systems | linux, debian
advisories | CVE-2008-1897
SHA-256 | 97d037ca7b365b1c1889ff90e00b690dfb8d67d9335ff98918757842a39e8032
AST-2008-006.txt
Posted Apr 23, 2008
Authored by Javantea | Site asterisk.org

Asterisk Project Security Advisory - Javantea found multiple security issues in IAX2 including an incomplete 3-way handshake.

tags | advisory
advisories | CVE-2008-1897
SHA-256 | add784c1721895efd2acb383b937c9caa5e879556f5ec5e543e6590f319908a8
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