CVE-2016-10396

Name	CVE-2016-10396
Description	The racoon daemon in IPsec-Tools 0.8.2 contains a remotely exploitable computational-complexity attack when parsing and storing ISAKMP fragments. The implementation permits a remote attacker to exhaust computational resources on the remote endpoint by repeatedly sending ISAKMP fragment packets in a particular order such that the worst-case computational complexity is realized in the algorithm utilized to determine if reassembly of the fragments can take place.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
Debian Bugs	867986

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ipsec-tools (PTS)	wheezy, wheezy (security)	1:0.8.0-14+deb7u1	vulnerable
	jessie (security), jessie	1:0.8.2+20140711-2+deb8u1	vulnerable
	buster, sid, stretch	1:0.8.2+20140711-8	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
ipsec-tools	source	(unstable)	(unfixed)			867986

Notes

NetBSD applied patch: http://cvsweb.netbsd.org/bsdweb.cgi/src/crypto/dist/ipsec-tools/src/racoon/isakmp_frag.c.diff?r1=1.5&r2=1.5.36.1
NetBSD Problem report: https://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=51682
patch disputed, cf. https://bugs.debian.org/867986#19