CVE-2015-1558 Information

Description

Asterisk Open Source 12.x before 12.8.1 and 13.x before 13.1.1 when using the PJSIP channel driver does not properly reclaim RTP ports which allows remote authenticated users to cause a denial of service (file descriptor consumption) via an SDP offer containing only incompatible codecs.

Reference

http://downloads.asterisk.org/pub/security/AST-2015-001.html http://seclists.org/fulldisclosure/2015/Jan/116 http://www.securityfocus.com/archive/1/534573/100/0/threaded http://www.securitytracker.com/id/1031661