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Home arrow SecurityAlert Database

Arrow  Topic :

Nortel UNIStim IP Softphone Buffer-Overflow


Arrow  SecurityAlert : 3271
Arrow  CVE : CVE-2007-5636
Arrow  SecurityRisk : High  Security Risk High  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : Yes
Arrow  Exploit Available : No
Arrow  Credit : Cyrill Brunschwiler
Arrow  Published : 23.10.2007

Arrow  Affected Software : IP Softphone



Arrow  Advisory Content :  

#############################################################

#

# COMPASS SECURITY ADVISORY http://www.csnc.ch/

#

#############################################################

#

# Product: IP Softphone

# Vendor: Nortel

# Subject: UNIStim IP Softphone Buffer-Overflow

# Risk: High

# Effect: Currently not exploitable

# Author: Cyrill Brunschwiler (cyrill.brunschwiler (at) csnc (dot) ch

# Date: October, 18th 2007

#

#############################################################

Introduction:

-------------

Flooding an UNIStim IP Softphone on the RTCP Port with garbage immediately
results in a Microsoft Windows error message which is mostly caused by

memory corruption (buffer overflow).

This vulnerability may be exploitable to gain user privileges on the client
workstation and execute malicious commands or code.

Nortel has noted this as:

Title: UNIStim IP Softphone - Potential Vulnerability Due to Buffer
Overflow

Number: 2007008382

http://support.nortel.com/go/main.jsp?cscat=SECUREADVISORY

Vulnerable:

-----------

IP Softphone 2050

Vulnerability Management:

-------------------------

June 2007: Vulnerability found

June 2007: Nortel Security notified

October 2007: Nortel Advisory available

October 2007: Compass Security Information

Remediation:

------------

According to Nortel the vulnerability is still under investigation.

The Nortel advisory will be reissued if the investigation results in new
prevention information.

Reference:

http://www.csnc.ch/static/advisory/secadvisorylist.html






Arrow  Feedback :

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