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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS Bugs in Voice Services Let Remote Users Deny Service or Potentially Execute Arbitrary Code
SecurityTracker Alert ID:  1018533
SecurityTracker URL:  http://securitytracker.com/id/1018533
CVE Reference:   CVE-2007-4291, CVE-2007-4292, CVE-2007-4293, CVE-2007-4295   (Links to External Site)
Updated:  Apr 21 2008
Original Entry Date:  Aug 8 2007
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Several vulnerabilities were reported in Cisco IOS when running voice services. A remote user can cause denial of service conditions. A remote user may be able to execute arbitrary code on the target device.

A remote user can send a specially crafted SIP packet to cause the target device to crash or potentially execute arbitrary code.

A remote user can send a specially crafted MGCP packet to cause the target device to crash or become unresponsive (preventing new telephone calls). A reboot is required to return the system to normal operations.

A remote user can send a specially crafted H.323 packet to cause the target device to crash.

A remote user can send a specially crafted RTP packet to cause the target device to crash.

A remote user can send a specially crafted facsimile packet to cause the target device to crash.

Cisco discovered some of the vulnerabilities during internal testing. Other vulnerabilities were discovered in customer networks.

Impact:   A remote user can cause the target device to crash or become unresponsive.

A remote user may be able to execute arbitrary code on the target device.

Solution:   The vendor has issued fixed versions. A patch matrix is available in the Cisco advisory.

The Cisco advisory is available at:

http://www.cisco.com/warp/public/707/cisco-sa-20070808-IOS-voice.shtml

Vendor URL:  www.cisco.com/warp/public/707/cisco-sa-20070808-IOS-voice.shtml (Links to External Site)
Cause:   Boundary error, Exception handling error, Input validation error

Message History:   None.


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