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Category:   Application (VoIP)  >   Asterisk Vendors:   Digium (Linux Support Services)
Asterisk TCP/TLS iostream Read Error Lets Remote Authenticated Users Deny Service
SecurityTracker Alert ID:  1041087
SecurityTracker URL:  http://securitytracker.com/id/1041087
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Jun 12 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 15.x
Description:   A vulnerability was reported in Asterisk. A remote authenticated user can cause denial of service conditions on the target system.

A remote authenticated user can send specially crafted data via TCP/TLS or abruptly disconnect to trigger an iostream read error and cause the target service to enter an infinite loop and become unusable.

Sean Bright reported this vulnerability.

Impact:   A remote authenticated user can cause the target system to become unusable.
Solution:   The vendor has issued a fix (15.4.1).

The vendor advisory is available at:

http://downloads.asterisk.org/pub/security/AST-2018-007.html

Vendor URL:  downloads.asterisk.org/pub/security/AST-2018-007.html (Links to External Site)
Cause:   State error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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