[Bug 1234649] Re: UEFI shim verification against microsoft-uefica-public.pem fails with 20131003 saucy images

[Steve Langasek]

Both shim and TianoCore include the following code:

static int check_cert_time(X509_STORE_CTX *ctx, X509 *x)
        {
#if defined(OPENSSL_SYS_UEFI)
  /* Bypass Certificate Time Checking for UEFI version. */
  return 1;
#else
      [...]
#endif
        }

So effectively, we don't do verification of signature times in UEFI.  So
this is a bug in sbsigntool.

** Changed in: sbsigntool (Ubuntu)
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1234649

Title:
  UEFI shim verification against microsoft-uefica-public.pem fails with
  20131003 saucy images

Status in “sbsigntool” package in Ubuntu:
  In Progress

Bug description:
  UEFI shim verification fails (PKCS7 verification failed) with the images of 20131003 against the microsoft-uefica-public. keys present in
  http://bazaar.launchpad.net/~ubuntu-bugcontrol/qa-regression-testing/master/files/head:/notes_testing/secure-boot/keys/

  The following is the failure results (http://bazaar.launchpad.net/~utah/utah/dev/view/head:/utah/isotest/iso_static_validation.py)
  DEBUG: Using iso at: /tmp/utah-saucy-server-amd64.iso
  INFO: Preparing image: /tmp/utah-saucy-server-amd64.iso
  INFO: /tmp/utah-saucy-server-amd64.iso is locally available as /tmp/utah-saucy-server-amd64.iso
  INFO: Getting image type of /tmp/utah-saucy-server-amd64.iso
  DEBUG: bsdtar list command: bsdtar -t -f /tmp/utah-saucy-server-amd64.iso
  INFO: Image type is: server
  DEBUG: Using normal image
  DEBUG: bsdtar list command: bsdtar -t -v -f /tmp/utah-saucy-server-amd64.iso ./.disk/info
  DEBUG: bsdtar extract command: bsdtar -x -f /tmp/utah-saucy-server-amd64.iso -O .disk/info
  INFO: Arch is: amd64
  INFO: Series is saucy
  DEBUG: Standard name for this iso is: saucy-server-amd64.iso
  DEBUG: Generating verification certificates
  DEBUG: Extracting UEFI boot and kernel images
  DEBUG: bsdtar list command: bsdtar -t -v -f /tmp/utah-saucy-server-amd64.iso ./EFI/BOOT/BOOTx64.EFI
  DEBUG: bsdtar extract command: bsdtar -x -f /tmp/utah-saucy-server-amd64.iso -O EFI/BOOT/BOOTx64.EFI
  DEBUG: bsdtar list command: bsdtar -t -v -f /tmp/utah-saucy-server-amd64.iso ./EFI/BOOT/grubx64.efi
  DEBUG: bsdtar extract command: bsdtar -x -f /tmp/utah-saucy-server-amd64.iso -O EFI/BOOT/grubx64.efi
  DEBUG: bsdtar list command: bsdtar -t -v -f /tmp/utah-saucy-server-amd64.iso ./install/vmlinuz
  DEBUG: bsdtar extract command: bsdtar -x -f /tmp/utah-saucy-server-amd64.iso -O install/vmlinuz
  DEBUG: Verifying UEFI shim
  ERROR: test_efi_secure_boot_signatures (__main__.TestValidateISO)
  ERROR: Traceback (most recent call last):
    File "/usr/lib/python2.7/unittest/case.py", line 327, in run
      testMethod()
    File "/usr/share/utah/isotest/iso_static_validation.py", line 481, in test_efi_secure_boot_signatures
      self.assertEqual(stdout, 'Signature verification OK\n')
    File "/usr/lib/python2.7/unittest/case.py", line 511, in assertEqual
      assertion_func(first, second, msg=msg)
    File "/usr/lib/python2.7/unittest/case.py", line 504, in _baseAssertEqual
      raise self.failureException(msg)
  AssertionError: 'PKCS7 verification failed\nSignature verification failed\n' != 'Signature verification OK\n'

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