DescriptionThe IAX2 channel driver (chan_iax2) in Asterisk Open Source 1.0.x, 1.2.x before 1.2.28, and 1.4.x before 184.108.40.206; 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 220.127.116.11, 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.
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
|National Vulnerability Database|
SUSE Timeline for this CVECVE page created: Fri Jun 28 03:53:14 2013
CVE page last modified: Fri Oct 7 12:45:41 2022