Intrusion Prevention

Digium.Asterisk.PJSIP.Channel.Driver.REGISTER.DoS

Description

This indicates an attack attempt to exploit a Denial of Service vulnerability in Digium Asterisk.
The vulnerability is due to an error when the vulnerable application handles crafted SIP messages. A remote attacker may be able to exploit this to cause a denial of service condition on the affected system.

Affected Products

Digium Asterisk Open Source 13.x
Digium Certified Asterisk 13.1

Impact

Denial of Service: Remote attackers can crash vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
http://downloads.asterisk.org/pub/security/AST-2016-004.html