Public bug reported:

The sbsign program in Ubuntu 16.04 is segfaulting randomly:

root@gil:/home/ubuntu# /usr/bin/sbsign --key 
//etc/refind.d/keys/refind_local.key --cert 
//etc/refind.d/keys/refind_local.crt --output /tmp/refind_local/refind_x64.efi 
/usr/share/refind/refind/refind_x64.efi
warning: data remaining[204288 vs 227742]: gaps between PE/COFF sections?
warning: data remaining[204288 vs 227744]: gaps between PE/COFF sections?
warning: overwriting existing signature
Segmentation fault (core dumped)
root@gil:/home/ubuntu# /usr/bin/sbsign --key 
//etc/refind.d/keys/refind_local.key --cert 
//etc/refind.d/keys/refind_local.crt --output /tmp/refind_local/refind_x64.efi 
/usr/share/refind/refind/refind_x64.efi
warning: data remaining[204288 vs 227742]: gaps between PE/COFF sections?
warning: data remaining[204288 vs 227744]: gaps between PE/COFF sections?
root@gil:/home/ubuntu# /usr/bin/sbsign --key 
//etc/refind.d/keys/refind_local.key --cert 
//etc/refind.d/keys/refind_local.crt --output /tmp/refind_local/refind_x64.efi 
/usr/share/refind/refind/refind_x64.efi
warning: data remaining[204288 vs 227742]: gaps between PE/COFF sections?
warning: data remaining[204288 vs 227744]: gaps between PE/COFF sections?
root@gil:/home/ubuntu# /usr/bin/sbsign --key 
//etc/refind.d/keys/refind_local.key --cert 
//etc/refind.d/keys/refind_local.crt --output /tmp/refind_local/refind_x64.efi 
/usr/share/refind/refind/refind_x64.efi
warning: data remaining[204288 vs 227742]: gaps between PE/COFF sections?
warning: data remaining[204288 vs 227744]: gaps between PE/COFF sections?
root@gil:/home/ubuntu# /usr/bin/sbsign --key 
//etc/refind.d/keys/refind_local.key --cert 
//etc/refind.d/keys/refind_local.crt --output /tmp/refind_local/refind_x64.efi 
/usr/share/refind/refind/refind_x64.efi
warning: data remaining[204288 vs 227742]: gaps between PE/COFF sections?
warning: data remaining[204288 vs 227744]: gaps between PE/COFF sections?
warning: overwriting existing signature
Segmentation fault (core dumped)

Note that on two of those five runs, the program segfaulted. This
problem is new with Ubuntu 16.04; it did not occur with Ubuntu 16.04 or
15.10.

Here's my version information:

$ lsb_release -rd
Description:    Ubuntu 16.04 LTS
Release:        16.04

$ apt-cache policy sbsigntool
sbsigntool:
  Installed: 0.6-0ubuntu10
  Candidate: 0.6-0ubuntu10
  Version table:
 *** 0.6-0ubuntu10 500
        500 http://nessus.rodsbooks.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status

I'm attaching a crash dump from /var/crash.

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

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https://bugs.launchpad.net/bugs/1574372

Title:
  sbsign crashes randomly

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