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Nortel IP Softphone 2050 Buffer Overflow Vulnerability
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Secunia Advisory:
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SA27252
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Release Date:
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2007-10-18
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Last Update:
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2008-03-06
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Popularity:
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4,150 views
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Critical:
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Moderately critical
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Impact:
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DoS
System access
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| Software: | Nortel IP Softphone 2050
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| CVE reference: | CVE-2007-5636
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Description:
A vulnerability has been reported in Nortel IP Softphone 2050, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a vulnerable system.
The vulnerability is caused due to boundary errors when processing invalid packets sent to the RTCP port. This can be exploited to cause a buffer overflow and crash the application via specially crafted packets.
Successful exploitation may allow execution of arbitrary code.
Solution:
Update to release R2.2 Upgrade Version 264 (see vendor advisory for further details).
Provided and/or discovered by:
Daniel Stirnimann and Cyrill Brunschwiler, Compass Security Network Computing AG
Changelog:
2007-10-26: Added CVE reference.
2008-03-06: Updated "Solution" and "Original Advisory" sections.
Original Advisory:
Nortel:
http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=696882
Compass Security Network Computing AG:
http://www.csnc.ch/static/advisory/cs...IP_softphone_buffer-overflow_v1.0.txt
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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