Reviewed:  https://review.opendev.org/c/openstack/neutron/+/806746
Committed: 
https://opendev.org/openstack/neutron/commit/df891f0593d234e01f27d7c0376d9702e178ecfb
Submitter: "Zuul (22348)"
Branch:    master

commit df891f0593d234e01f27d7c0376d9702e178ecfb
Author: Slawek Kaplonski <[email protected]>
Date:   Tue Aug 31 15:43:11 2021 +0200

    Remove dhcp_extra_opt value after first newline character
    
    Passing newline to the dnsmasq may cause security issues, especially
    that in case of Neutron that dhcp options' values are controlled by
    cloud users.
    This patch removes everything what is after first newline character
    in the dhcp_extra_opt's values before passing them to dnsmasq.
    
    Closes-Bug: #1939733
    Change-Id: Ifeaf258f0b5ea86f25620ac4116d618980a7272e


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1939733

Title:
  [OSSA-2021-005] Arbitrary dnsmasq reconfiguration via extra_dhcp_opts
  (CVE-2021-40085)

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