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[Bug 1749667] Re: neutron doesn't correctly handle unknown protocols and should whitelist known and handled protocols

 

** Also affects: cloud-archive
   Importance: Undecided
       Status: New

** Changed in: cloud-archive
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1749667

Title:
  neutron doesn't correctly handle unknown protocols and should
  whitelist known and handled protocols

Status in Ubuntu Cloud Archive:
  Fix Released
Status in neutron:
  Fix Released

Bug description:
  We have had problems with openvswitch agent continuously restarting
  and never actually completing setup because of this:

  # Completed by iptables_manager
  ; Stdout: ; Stderr: iptables-restore v1.4.21: multiport only works with TCP, UDP, UDPLITE, SCTP and DCCP
  Error occurred at line: 83
  Try `iptables-restore -h' or 'iptables-restore --help' for more information.

      83. -I neutron-openvswi-<id> 69 -s <ip> -p 112 -m multiport --dports 1:65535 -j RETURN
  ---

  Someone has managed to inject a rule that is, effectively, a DoS.

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References