CVE-2008-1923

2008-04-2300:00:00

ubuntu.com

7.1 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:N/I:N/A:C

0.019 Low

EPSS

Percentile

88.3%

JSON

The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630
and 1.4 before revision 65679, when configured to allow unauthenticated
calls, sends “early audio” to an unverified source IP address of a NEW
message, which allows remote attackers to cause a denial of service
(traffic amplification) via a spoofed NEW message.