[Bug 1961864] Re: fwupd daemon failed verifying firmware signature

[Yuan-Chen Cheng]

I use WD19SC to upgrade its firmware, and it works fine.

I use fwupd 1.7.5 from this ppa: https://launchpad.net/~ycheng-twn/+archive/ubuntu/fwupd175-3-2
I didn't upgrade libjcat and it also works fine.

Use get-releases, the cab used is
https://fwupd.org/downloads/4e3f12fc1901c05790ab17ff2223a79631477aa87979498874c4c262cfafc144-WD19FirmwareUpdateLinux_01.00.21.cab

use gcab -x XXX.cab, there is firmware.jcat inside.

** Changed in: oem-priority
       Status: New => Triaged

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https://bugs.launchpad.net/bugs/1961864

Title:
  fwupd daemon failed verifying firmware signature

Status in OEM Priority Project:
  Triaged
Status in fwupd package in Ubuntu:
  New
Status in libjcat package in Ubuntu:
  New

Bug description:
  The firmware blobs in cabinet archive are presently LVFS signed with
  gpg and pkcs7, if libjcat at compilation time without one then the
  blobs signed with both can't be verified.

  Impact is fwupd daemon will fail the firmware install immediately
  because OnlyTrusted=true is defaulted (in fwupd 1.7.x) to verifying
  the signature for daemon.

  We need uprev libjcat at least 0.1.4 onward to fix this issue.

  Issue is reproducible with fwupd 1.7.4
  -> https://launchpad.net/~ycheng-twn/+archive/ubuntu/fwupd174

  $ fwupdmgr --version
  client version:	1.7.4
  compile-time dependency versions
   gusb:	0.3.4

  daemon version: 1.7.4

  $ dpkg -l | grep libjcat
  ii  libjcat1:amd64    0.1.3-2   amd64   JSON catalog library

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