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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade ipsec-tools | Feb 25, 2019 | Jul 5, 2017 |
| Freebsd | — | Upgrade ipsec-tools | Apr 19, 2018 | Apr 14, 2018 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Dec 2, 2016 |
| Suse | — | Upgrade ipsec-tools | Feb 14, 2018 | Jul 5, 2017 |
| Ubuntu | — | Upgrade racoonUpgrade ipsec-tools | Nov 16, 2017 | Jul 5, 2017 |
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