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Date: Thu, 2 Apr 2015 19:15:45 -0700
From: Eitan Adler <>
To: FreeBSD Security Team <>, "" <>,,
Subject: Fwd: CVE Request : IPv6 Hop limit lowering via RA messages

+ FreeBSD lists since I haven't seen any relevant patches (although I
might have missed them).

---------- Forwarded message ----------
From: D.S. Ljungmark <>
Date: 2 April 2015 at 10:19
Subject: [oss-security] CVE Request : IPv6 Hop limit lowering via RA messages

An unprivileged user on a local network can use IPv6 Neighbour
Discovery ICMP to broadcast a non-route with a low hop limit, this
causing machines to lower the hop limit on existing IPv6 routes.

Linux Patch:
Redhat bugzilla:

Projects impacted:  Linux kernel,  NetworkManager, FreeBSD Kernel

  D.S. Ljungmark

Eitan Adler

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