Digium Asterisk up to 10.0.0 chan_sip.c null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Digium Asterisk and classified as problematic. This affects an unknown part of the file chan_sip.c. This manipulation causes null pointer dereference. This vulnerability is tracked as CVE-2012-0885. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Digium Asterisk (Communications System) and classified as problematic. Affected by this vulnerability is an unknown part of the file chan_sip.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

chan_sip.c in Asterisk Open Source 1.8.x before 1.8.8.2 and 10.x before 10.0.1, when the res_srtp module is used and media support is improperly configured, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted SDP message with a crypto attribute and a (1) video or (2) text media type, as demonstrated by CSipSimple.

The weakness was disclosed 01/25/2012 (Website). It is possible to read the advisory at downloads.asterisk.org. This vulnerability is known as CVE-2012-0885 since 01/19/2012. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 58431 (Asterisk SRTP Video Stream Negotiation Remote Crash (AST-2012-001)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc..

Upgrading to version 1.8.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (72556), Tenable (58431), SecurityFocus (BID 51581†) and Vulnerability Center (SBV-34356†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 58431
Nessus Name: Asterisk SRTP Video Stream Negotiation Remote Crash (AST-2012-001)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 71181
OpenVAS Name: Gentoo Security Advisory GLSA 201202-06 (asterisk)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Asterisk 1.8.0

Timelineinfo

01/19/2012 🔍
01/20/2012 +1 days 🔍
01/25/2012 +5 days 🔍
01/25/2012 +0 days 🔍
01/25/2012 +0 days 🔍
01/31/2012 +6 days 🔍
03/22/2012 +51 days 🔍
03/23/2015 +1096 days 🔍
11/29/2021 +2443 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: downloads.asterisk.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-0885 (🔍)
GCVE (CVE): GCVE-0-2012-0885
GCVE (VulDB): GCVE-100-60007
X-Force: 72556
SecurityFocus: 51581 - Asterisk SRTP Video Denial Of Service Vulnerability
Vulnerability Center: 34356 - Asterisk Open Source chan_sip.c SRTP Stream Negotiation DoS via a Crafted SDP Message, Low

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/29/2021 08:05
Changes: 03/23/2015 16:50 (59), 12/24/2017 09:37 (11), 11/29/2021 08:05 (3)
Complete: 🔍
Cache ID: 216:BD5:103

Be aware that VulDB is the high quality source for vulnerability data.

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