The sctp_send_initiate_ack function in sys/netinet/sctp_output.c in the SCTP implementation in the kernel in FreeBSD 8.3 through 9.2-PRERELEASE does not properly initialize the state-cookie data structure, which allows remote attackers to obtain sensitive information from kernel stack memory by reading packet data in INIT-ACK chunks.
https://bugzilla.mozilla.org/show_bug.cgi?id=905080
http://www.securitytracker.com/id/1028940
http://www.securityfocus.com/bid/61939
http://www.freebsd.org/security/advisories/FreeBSD-SA-13:10.sctp.asc
http://svnweb.freebsd.org/base?view=revision&revision=254338