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GLSA-200802-11 : Asterisk: Multiple vulnerabilities

high Nessus Plugin ID 31294

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200802-11 (Asterisk: Multiple vulnerabilities)

 Multiple vulnerabilities have been found in Asterisk:
 Russel Bryant reported a stack-based buffer overflow in the IAX2 channel driver (chan_iax2) when bridging calls between chan_iax2 and any channel driver that uses RTP for media (CVE-2007-3762).
 Chris Clark and Zane Lackey (iSEC Partners) reported a NULL pointer dereference in the IAX2 channel driver (chan_iax2) (CVE-2007-3763).
 Will Drewry (Google Security) reported a vulnerability in the Skinny channel driver (chan_skinny), resulting in an overly large memcpy (CVE-2007-3764).
 Will Drewry (Google Security) reported a vulnerability in the IAX2 channel driver (chan_iax2), that does not correctly handle unauthenticated transactions using a 3-way handshake (CVE-2007-4103).
 Impact :

 By sending a long voice or video RTP frame, a remote attacker could possibly execute arbitrary code on the target machine. Sending specially crafted LAGRQ or LAGRP frames containing information elements of IAX frames, or a certain data length value in a crafted packet, or performing a flood of calls not completing a 3-way handshake, could result in a Denial of Service.
 Workaround :

 There is no known workaround at this time.

Solution

All Asterisk users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=net-misc/asterisk-1.2.17-r1'

See Also

https://security.gentoo.org/glsa/200802-11

Plugin Details

Severity: High

ID: 31294

File Name: gentoo_GLSA-200802-11.nasl

Version: 1.17

Type: local

Published: 2/27/2008

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 7.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:asterisk, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/26/2008

Vulnerability Publication Date: 7/17/2007

Reference Information

CVE: CVE-2007-3762, CVE-2007-3763, CVE-2007-3764, CVE-2007-4103

GLSA: 200802-11