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.asterisk.org/pub/security/AST-2011-003.html http://downloads.asterisk.org/pub/security/AST-2011-004.html http://www.vuxml.org/freebsd/bfe9c75e-5028-11e0-b2d2-00215c6a37bb.html

The following packages are affected: asterisk16 asterisk18