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CVE-2016-10396

Published: 5 July 2017

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.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
ipsec-tools
Launchpad, Ubuntu, Debian
artful
Released (1:0.8.2+20140711-10)
bionic
Released (1:0.8.2+20140711-10)
cosmic
Released (1:0.8.2+20140711-10)
disco
Released (1:0.8.2+20140711-10)
eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist
(trusty was needed)
upstream Needs triage

xenial Needed

yakkety Ignored
(end of life)
zesty Ignored
(end of life)
mantic Does not exist

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H