[Bug 1292019] [NEW] ubuntu causes DHCP DOS attack during install

[Launchpad Bug Tracker]

*** This bug is a security vulnerability ***

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While installing ubuntu server 14.4 or older version 13 we have an DOS
on DHCP

During the install at the detect network IP using DHCP we have had
issues where if this process is left on this screen overnight we have
about 10 million DHCP request/decline events.  (a request every ~4ms)

1.  click detect IP using DHCP... the bar goes across the screen then gives up...
2.  leave the installer at the screen [retry network detection].
3. /detection seems to still continue in a background process/

This is extremely aggressive on our network.

Please have someone look into this before the LTS release.

Thanks.

** Affects: netcfg (Ubuntu)
     Importance: Undecided
         Status: New

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ubuntu causes DHCP DOS attack during install
https://bugs.launchpad.net/bugs/1292019
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