Digium Asterisk up to 1.2.8 IAX2 Channel Driver memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Digium Asterisk up to 1.2.8 and classified as problematic. Affected by this issue is some unknown functionality of the component IAX2 Channel Driver. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2006-2898. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Digium Asterisk up to 1.2.8 (Communications System) and classified as critical. Affected by this issue is an unknown code of the component IAX2 Channel Driver. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. CVE summarizes:

The IAX2 channel driver (chan_iax2) for Asterisk 1.2.x before 1.2.9 and 1.0.x before 1.0.11 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via truncated IAX 2 (IAX2) video frames, which bypasses a length check and leads to a buffer overflow involving negative length check. NOTE: the vendor advisory claims that only a DoS is possible, but the original researcher is reliable.

The weakness was published 06/07/2006 by Damian with Asterisk Team (Website). The advisory is shared for download at asterisk.org. This vulnerability is handled as CVE-2006-2898 since 06/07/2006. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 22668 (Debian DSA-1126-1 : asterisk - buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.digium.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 months after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 6513. In this case the pattern |00 00| is used for detection.

The vulnerability is also documented in the databases at X-Force (27045), Tenable (22668), SecurityFocus (BID 18295†), OSVDB (26187†) and Secunia (SA21222†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 22668
Nessus Name: Debian DSA-1126-1 : asterisk - buffer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 57162
OpenVAS Name: Debian Security Advisory DSA 1126-1 (asterisk)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: ftp.digium.com

Snort ID: 6513
Snort Message: EXPLOIT Asterisk IAX2 truncated video mini-frame packet overflow attempt
Snort Pattern: 🔍

Timelineinfo

06/06/2006 🔍
06/07/2006 +1 days 🔍
06/07/2006 +0 days 🔍
06/07/2006 +0 days 🔍
06/07/2006 +0 days 🔍
06/07/2006 +0 days 🔍
06/19/2006 +11 days 🔍
07/27/2006 +38 days 🔍
10/14/2006 +79 days 🔍
03/13/2021 +5264 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: asterisk.org
Researcher: Damian
Organization: Asterisk Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-2898 (🔍)
GCVE (CVE): GCVE-0-2006-2898
GCVE (VulDB): GCVE-100-2300
X-Force: 27045 - Asterisk IAX2 channel driver truncated video frame buffer overflow, High Risk
SecurityFocus: 18295 - Asterisk IAX2 Remote Buffer Overflow Vulnerability
Secunia: 21222 - Debian update for asterisk, Moderately Critical
OSVDB: 26187 - Asterisk chan_iax2 IAX2 Channel Driver Unspecified DoS
SecurityTracker: 1016236 - Asterisk IAX2 Channel Driver Lets Remote Users Deny Service
Vupen: ADV-2006-2181

Entryinfo

Created: 06/19/2006 11:11
Updated: 03/13/2021 08:08
Changes: 06/19/2006 11:11 (91), 12/24/2017 09:42 (5), 03/13/2021 08:08 (3)
Complete: 🔍
Cache ID: 216:043:103

Once again VulDB remains the best source for vulnerability data.

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