The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades. http://downloads.digium.com/pub/security/AST-2012-011.html http://downloads.digium.com/pub/security/AST-2012-012.html https://www.asterisk.org/security http://www.vuxml.org/freebsd/4c1ac2dd-c788-11e1-be25-14dae9ebcf89.html

The following packages are affected: asterisk asterisk18 CVE-2012-3812 Double free vulnerability in apps/app_voicemail.c in Asterisk Open Source 1.8.x before 1.8.13.1 and 10.x before 10.5.2, Certified Asterisk 1.8.11-certx before 1.8.11-cert4, and Asterisk Digiumphones 10.x.x-digiumphones before 10.5.2-digiumphones allows remote authenticated users to cause a denial of service (daemon crash) by establishing multiple voicemail sessions and accessing both the Urgent mailbox and the INBOX mailbox.