full-disclosure - Buffer Overflow in MultiTech VoIP Implementations

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Date: Mon Dec  5 18:18:17 2005
From: SLAB_research at securitylab.net (SecurityLab Research)
Subject: Buffer Overflow in MultiTech VoIP Implementations

			SecurityLab Technologies, Inc.
			--- www.securitylab.net ---

 Security Advisory
 Advisory Name: Buffer Overflow in MultiTech VoIP Implementations
  Release Date: December 05, 2005
   Application: MultiVoIP Gateway
	Platform: Multiple
	Severity: Moderate
	  Author: Ejovi Nuwere <SLAB_research[AT]securitylab.net>
 Vendor Status: Patched in Version x.08
     Reference: http://www.securitylab.net/research/

Overview:
The MultiVOIP voice over IP gateway provides toll-free voice and fax
communications over the Internet or Intranet. Occasionally MultiTech
develops and licenses their VoIP Gateways and VoIP related stacks for
inclusion in third party platforms. Therefore, this bug may affect
products outside of the MultiTech line.

SecurityLab technologies has discovered a remote buffer overflow in
MultiTech's MultiVOIP product line that may lead to remote code 
execution.

Details:
The buffer overflow occurs in the SIP packet INVITE field with a
string greater than 60 characters. Testing was performed on an
embedded device with limited debug environment. Source code was not
avaible for further analysys.

Vendor Response:
Patched. Version x.08

Recommendation:
Contact vendor for current release.

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