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Category:   Application (VoIP)  >   Asterisk Vendors:   Digium (Linux Support Services)
Asterisk Bug in Processing RTCP Packets Lets Remote Users Cause the Target Service to Crash
SecurityTracker Alert ID:  1040009
SecurityTracker URL:  http://securitytracker.com/id/1040009
CVE Reference:   CVE-2017-17664   (Links to External Site)
Updated:  Dec 31 2017
Original Entry Date:  Dec 13 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Asterisk. A remote user can cause the target service to crash.

A remote user can establish a call to the target system and send a specially crafted compound RTCP packet containing more than one report to trigger a memory error and cause the target service to crash.

Tzafrir Cohen and Vitezslav Novy reported this vulnerability.

Impact:   A remote user can cause the target service to crash.
Solution:   The vendor has issued a fix (13.18.4, 14.7.4, 15.1.4).

The vendor advisory is available at:

http://downloads.asterisk.org/pub/security/AST-2017-012.html

Vendor URL:  downloads.asterisk.org/pub/security/AST-2017-012.html (Links to External Site)
Cause:   Access control error, Input validation error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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