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Category:   Device (VoIP/Phone/FAX)  >   Cisco IP Phones Vendors:   Cisco
Cisco IP Phones Can Be Crashed With Specially Crafted Compressed DNS Data
SecurityTracker Alert ID:  1014043
SecurityTracker URL:
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  May 24 2005
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7902/7905/7912
Description:   A vulnerability was reported in Cisco IP Phones in the processing of DNS messages. A remote user can cause denial of service conditions.

A remote user can send a DNS packet with specially crafted message compression data to cause an error on the target system. The target device may function abnormally or crash.

Impact:   A remote user can cause the target device to crash or function abnormally.
Solution:   The vendor has issued a fix. A fix matrix is available at:

Vendor URL: (Links to External Site)
Cause:   Exception handling error

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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