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.
Ubuntu 12.04 ESM (Precise Pangolin):released (1:0.8.0-9ubuntu1.2)
Ubuntu 14.04 LTS (Trusty Tahr):needed
Ubuntu 16.04 LTS (Xenial Xerus):needed
Ubuntu 18.04 LTS (Bionic Beaver):released (1:0.8.2+20140711-10)
Ubuntu 18.10 (Cosmic Cuttlefish):released (1:0.8.2+20140711-10)
Ubuntu 19.04 (Disco Dingo):released (1:0.8.2+20140711-10)
Ubuntu 19.10 (Eoan):released (1:0.8.2+20140711-10)
More Information

Updated: 2019-04-22 21:18:48 UTC (commit 750f6738e68600bdf0b7c7ef543b49378c330e4e)