Executive Summary

Summary
Title Asterisk: Multiple vulnerabilities
Informations
Name GLSA-201209-15 First vendor Publication 2012-09-26
Vendor Gentoo Last vendor Modification 2012-09-26
Severity (Vendor) Normal Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:C/I:C/A:C)
Cvss Base Score 9 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

Multiple vulnerabilities have been found in Asterisk, the worst of which may allow execution of arbitrary code.

Background

Asterisk is an open source telephony engine and toolkit.

Description

Multiple vulnerabilities have been found in Asterisk:

* An error in manager.c allows shell access (CVE-2012-2186).
* An error in Asterisk could cause all RTP ports to be exhausted (CVE-2012-3812).
* A double-free error could occur when two parties attempt to manipulate the same voicemail account simultaneously (CVE-2012-3863).
* Asterisk does not properly implement certain ACL rules (CVE-2012-4737).

Impact

A remote, authenticated attacker could execute arbitrary code with the privileges of the process, cause a Denial of Service condition, or bypass outbound call restrictions.

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.15.1"

References

[ 1 ] CVE-2012-2186 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2186
[ 2 ] CVE-2012-3812 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3812
[ 3 ] CVE-2012-3863 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3863
[ 4 ] CVE-2012-4737 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4737

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201209-15.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-201209-15.xml

CWE : Common Weakness Enumeration

% Id Name
67 % CWE-399 Resource Management Errors
33 % CWE-264 Permissions, Privileges, and Access Controls

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:20005
 
Oval ID: oval:org.mitre.oval:def:20005
Title: DSA-2550-1 asterisk - several
Description: Several vulnerabilities were discovered in Asterisk, a PBX and telephony toolkit, allowing privilege escalation in the Asterisk Manager, denial of service or privilege escalation.
Family: unix Class: patch
Reference(s): DSA-2550-1
CVE-2012-2186
CVE-2012-3812
CVE-2012-3863
CVE-2012-4737
Version: 5
Platform(s): Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
Product(s): asterisk
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:29135
 
Oval ID: oval:org.mitre.oval:def:29135
Title: DSA-2550-2 -- asterisk -- several vulnerabilities
Description: Several vulnerabilities were discovered in Asterisk, a PBX and telephony toolkit, allowing privilege escalation in the Asterisk Manager, denial of service or privilege escalation.
Family: unix Class: patch
Reference(s): DSA-2550-2
CVE-2012-2186
CVE-2012-3812
CVE-2012-3863
CVE-2012-4737
Version: 3
Platform(s): Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
Product(s): asterisk
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 5
Application 6
Application 29
Application 396
Application 161
Application 3
Application 2
Application 7

OpenVAS Exploits

Date Description
2012-10-03 Name : Debian Security Advisory DSA 2550-2 (asterisk)
File : nvt/deb_2550_2.nasl
2012-10-03 Name : Gentoo Security Advisory GLSA 201209-15 (asterisk)
File : nvt/glsa_201209_15.nasl
2012-09-23 Name : Debian Security Advisory DSA 2550-1 (asterisk)
File : nvt/deb_2550_1.nasl
2012-09-22 Name : Fedora Update for asterisk FEDORA-2012-13338
File : nvt/gb_fedora_2012_13338_asterisk_fc17.nasl
2012-09-22 Name : Fedora Update for asterisk FEDORA-2012-13437
File : nvt/gb_fedora_2012_13437_asterisk_fc16.nasl
2012-08-30 Name : FreeBSD Ports: asterisk
File : nvt/freebsd_asterisk2.nasl
2012-08-30 Name : Fedora Update for asterisk FEDORA-2012-10324
File : nvt/gb_fedora_2012_10324_asterisk_fc17.nasl
2012-08-10 Name : FreeBSD Ports: asterisk
File : nvt/freebsd_asterisk1.nasl

Nessus® Vulnerability Scanner

Date Description
2012-09-27 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201209-15.nasl - Type : ACT_GATHER_INFO
2012-09-19 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2550.nasl - Type : ACT_GATHER_INFO
2012-09-18 Name : The remote Fedora host is missing a security update.
File : fedora_2012-13286.nasl - Type : ACT_GATHER_INFO
2012-09-18 Name : The remote Fedora host is missing a security update.
File : fedora_2012-13338.nasl - Type : ACT_GATHER_INFO
2012-09-18 Name : The remote Fedora host is missing a security update.
File : fedora_2012-13437.nasl - Type : ACT_GATHER_INFO
2012-09-06 Name : A telephony application running on the remote host is affected by a security ...
File : asterisk_ast_2012_012.nasl - Type : ACT_GATHER_INFO
2012-09-06 Name : A telephony application running on the remote host is affected by a security ...
File : asterisk_ast_2012_013.nasl - Type : ACT_GATHER_INFO
2012-08-31 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_4c53f007f2ed11e1a21514dae9ebcf89.nasl - Type : ACT_GATHER_INFO
2012-07-20 Name : The remote Fedora host is missing a security update.
File : fedora_2012-10324.nasl - Type : ACT_GATHER_INFO
2012-07-19 Name : A telephony application running on the remote host is affected by a denial of...
File : asterisk_ast_2012_010.nasl - Type : ACT_GATHER_INFO
2012-07-19 Name : A telephony application running on the remote host is affected by a denial of...
File : asterisk_ast_2012_011.nasl - Type : ACT_GATHER_INFO
2012-07-07 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_4c1ac2ddc78811e1be2514dae9ebcf89.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:37:34
  • Multiple Updates