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FreeBSD: VID-974A6D32-3FDA-11E8-AEA4-001B216D295B (CVE-2016-10396): ipsec-tools -- remotely exploitable computational-complexity attack

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FreeBSD: VID-974A6D32-3FDA-11E8-AEA4-001B216D295B (CVE-2016-10396): ipsec-tools -- remotely exploitable computational-complexity attack

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
12/02/2016
Created
07/25/2018
Added
04/19/2018
Modified
05/07/2019

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.

Solution(s)

  • freebsd-upgrade-package-ipsec-tools

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