Format string vulnerability in Asterisk Open Source 1.6.x before 1.6.0-beta6 might allow remote attackers to execute arbitrary code via logging messages that are not properly handled by (1) the ast_verbose logging API call, or (2) the astman_append function.
downloads.digium.com/pub/security/AST-2008-004.html
secunia.com/advisories/29426
secunia.com/advisories/29456
securitytracker.com/id?1019630
www.asterisk.org/node/48466
www.debian.org/security/2008/dsa-1525
www.securityfocus.com/archive/1/489823/100/0/threaded
www.securityfocus.com/bid/28311
www.vupen.com/english/advisories/2008/0928
exchange.xforce.ibmcloud.com/vulnerabilities/41301