[Bug 1371833] Re: dhclient is unable to parse zero-length option values (breaks DHCPv6)

[Benjamin Drung]

This patch has been applied in the meantime. isc-dhcp 4.4.1-2.3ubuntu2
in Ubuntu 22.04 (jammy) carries it.

** Changed in: isc-dhcp (Ubuntu)
       Status: Confirmed => Fix Released

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Title:
  dhclient is unable to parse zero-length option values (breaks DHCPv6)

Status in isc-dhcp package in Ubuntu:
  Fix Released
Status in dhcp package in Fedora:
  Fix Released

Bug description:
  Description:    Ubuntu 14.04.1 LTS
  Release:        14.04

  isc-dhcp-client:
    Installed: 4.2.4-7ubuntu12
    Candidate: 4.2.4-7ubuntu12
    Version table:
   *** 4.2.4-7ubuntu12 0
          500 http://mirror.internode.on.net/pub/ubuntu/ubuntu/ trusty/main amd64 Packages
          100 /var/lib/dpkg/status

  Any option with a zero-length value, ie the common DHCPv6 option:

  option dhcp6.reconf-accept ;

  with isc-dhcp-client_4.2.4 produces a parser failure:

  dhclient: /var/lib/NetworkManager/dhclient6-...-wlan0.lease line 35:
  semicolon expected.

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