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Category:   Application (VoIP)  >   Asterisk Vendors:   Digium (Linux Support Services)
Asterisk SIP Channel Driver Can Be Crashed By Remote Users With 'BYE with Also' Method
SecurityTracker Alert ID:  1019152
SecurityTracker URL:
CVE Reference:   CVE-2008-0095   (Links to External Site)
Updated:  Jan 9 2008
Original Entry Date:  Jan 2 2008
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.4 prior to 1.4.17
Description:   A vulnerability was reported in Asterisk. A remote user can cause denial of service conditions.

A remote user can send a specially crafted BYE message using the 'BYE with Also' transfer method to trigger a NULL pointer error cause the target service to crash.

The vendor was notified on December 26, 2007.

Grey VoIP reported this vulnerability.

Impact:   A remote user can the target system to crash.
Solution:   The vendor has issued a fixed version (1.4.17).

The Asterisk advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.

 Source Message Contents

Subject:  AST-2008-001: Crash from transfer using BYE with Also header


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