[lwip-devel] [bug #47641] lwIP would accept IPv6 source addresses from the network that are mapped IPv4 adresses

[Dirk Ziegelmeier]

URL:
  <http://savannah.nongnu.org/bugs/?47641>

                 Summary: lwIP would accept IPv6 source addresses from the
network that are mapped IPv4 adresses
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: dziegel
            Submitted on: Do 07 Apr 2016 11:14:09 GMT
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 
            lwIP version: git head

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Details:

Potential security problem:

Not implemented yet, but IPv6 sockets should return IPv6 mapped IPv4 addresses
on incoming IPv4 traffic in dual-stack mode -> this is ambiguous when this
address type is not filtered on incoming IPv6 traffic




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  <http://savannah.nongnu.org/bugs/?47641>

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