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GLSA-200704-01 : Asterisk: Two SIP Denial of Service vulnerabilities

high Nessus Plugin ID 24934

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-200704-01 (Asterisk: Two SIP Denial of Service vulnerabilities)

 The Madynes research team at INRIA has discovered that Asterisk contains a NULL pointer dereferencing error in the SIP channel when handling INVITE messages. Furthermore qwerty1979 discovered that Asterisk 1.2.x fails to properly handle SIP responses with return code 0.
 Impact :

 A remote attacker could cause an Asterisk server listening for SIP messages to crash by sending a specially crafted SIP message or answering with a 0 return code.
 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 Note: Asterisk 1.0.x is no longer supported upstream so users should consider upgrading to Asterisk 1.2.x.

See Also

https://security.gentoo.org/glsa/200704-01

Plugin Details

Severity: High

ID: 24934

File Name: gentoo_GLSA-200704-01.nasl

Version: 1.17

Type: local

Published: 4/5/2007

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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: 4/2/2007

Vulnerability Publication Date: 3/21/2007

Reference Information

CVE: CVE-2007-1561, CVE-2007-1594

GLSA: 200704-01