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Category:   Application (VoIP)  >   Asterisk Vendors:   Digium (Linux Support Services)
Asterisk Accept Header Processing Error in 'res_pjsip_pubsub' Lets Remote Users Cause the Target Service to Crash
SecurityTracker Alert ID:  1040416
SecurityTracker URL:  http://securitytracker.com/id/1040416
CVE Reference:   CVE-2018-7284   (Links to External Site)
Date:  Feb 22 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 13.x, 14.x, 15.x
Description:   A vulnerability was reported in Asterisk. A remote user can cause the target service to crash.

A remote user can send a SUBSCRIBE request with specially crafted Accept headers to trigger a flaw in the 'res_pjsip_pubsub' module and cause the target service to crash. More than 32 Accept headers can trigger a crash.

Sandro Gauci reported this vulnerability.

Impact:   A remote user can cause the target service to crash.
Solution:   The vendor has issued a fix (13.19.2, 14.7.6, 15.2.2).

The vendor advisory is available at:

http://downloads.asterisk.org/pub/security/AST-2018-004.html

Vendor URL:  downloads.asterisk.org/pub/security/AST-2018-004.html (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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