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Category:   Application (VoIP)  >   Asterisk Vendors:   Digium (Linux Support Services)
Asterisk IAX2 Channel Driver Invalid Pointer Lets Remote Users Deny Service
SecurityTracker Alert ID:  1027102
SecurityTracker URL:
CVE Reference:   CVE-2012-2947   (Links to External Site)
Date:  May 30 2012
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to, 10.4.1
Description:   A vulnerability was reported in Asterisk. A remote user can cause denial of service conditions.

When an established call is placed on hold (without a suggested music-on-hold class name) and the 'mohinterpret' configuration is set to 'passthrough' at the call generation point, an invalid pointer bug may occur.

mgrobecker reported this vulnerability.

Impact:   A remote user can cause the target system to crash.
Solution:   The vendor has issued a fix (, 10.4.1).

The vendor's 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

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