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FreeBSD Security Advisory (FreeBSD-SA-07:03.ipv6.asc)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update to the system as announced in the referenced advisory FreeBSD-SA-07:03.ipv6.asc
Insight
Insight
IPv6 provides a routing header option which allows a packet sender to indicate how the packet should be routed, overriding the routing knowledge present in a network. This functionality is roughly equivalent to the source routing option in IPv4. All nodes in an IPv6 network -- both routers and hosts -- are required by RFC 2640 to process such headers. There is no mechanism for preventing IPv6 routing headers from being used to route packets over the same link(s) many times.
Solution
Solution
Upgrade your system to the appropriate stable release or security branch dated after the correction date https://secure1.securityspace.com/smysecure/catid.html?in=FreeBSD-SA-07:03.ipv6.asc