| 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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1044-1 |
| Debian Bugs | 867986 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| ipsec-tools (PTS) | jessie, jessie (lts) | 1:0.8.2+20140711-2+deb8u1 | vulnerable |
| stretch | 1:0.8.2+20140711-8+deb9u1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[jessie] - ipsec-tools <no-dsa> (Will be fixed via point release)
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://bugzilla.suse.com/show_bug.cgi?id=1047443#c1
Updated patch: https://anonscm.debian.org/cgit/pkg-ipsec-tools/pkg-ipsec-tools.git/plain/debian/patches/CVE-2016-10396.patch?id=62ac12648a4eb7c5ba5dba0f81998d1acf310d8b