This script is Copyright (C) 2009-2014 Tenable Network Security, Inc.
The remote Gentoo host is missing one or more security-related
The remote host is affected by the vulnerability described in GLSA-200905-01
(Asterisk: Multiple vulnerabilities)
Multiple vulnerabilities have been discovered in the IAX2 channel
driver when performing the 3-way handshake (CVE-2008-1897), when
handling a large number of POKE requests (CVE-2008-3263), when handling
authentication attempts (CVE-2008-5558) and when handling firmware
download (FWDOWNL) requests (CVE-2008-3264). Asterisk does also not
correctly handle SIP INVITE messages that lack a 'From' header
(CVE-2008-2119), and responds differently to a failed login attempt
depending on whether the user account exists (CVE-2008-3903,
Remote unauthenticated attackers could send specially crafted data to
Asterisk, possibly resulting in a Denial of Service via a daemon crash,
call-number exhaustion, CPU or traffic consumption. Remote
unauthenticated attackers could furthermore enumerate valid usernames
to facilitate brute-force login attempts.
There is no known workaround at this time.
See also :
All Asterisk users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-misc/asterisk-1.2.32'
Risk factor :
High / CVSS Base Score : 7.8