DescriptionThe 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
Debian Bugs867986

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ipsec-tools (PTS)wheezy, wheezy (security)1:0.8.0-14+deb7u1vulnerable
jessie (security), jessie1:0.8.2+20140711-2+deb8u1vulnerable
buster, sid, stretch1:0.8.2+20140711-8vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


NetBSD applied patch:
NetBSD Problem report:
patch disputed, cf.

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