[Bug 1575239] Re: sudo sssd ldap segmentation fault

[Ben Kulbertis]

Thanks Marc. I just tested with 1.8.16-0ubuntu1.1 on xenial and it fixed
the issue for me. It would seem to me this is a duplicate.

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https://bugs.launchpad.net/bugs/1575239

Title:
  sudo sssd ldap segmentation fault

Status in sudo package in Ubuntu:
  Confirmed

Bug description:
  This seems to be comparable to this bug: https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/1327268
  The same situation with the same results but in 16.04 Xenial Release - sudo_1.8.16-0ubuntu1_amd64.deb.

  The problem is resolved by installing the Trusty sudo package -
  sudo_1.8.9p5-1ubuntu1.1_amd64.deb.

  This problem does not exist if sssd is not installed.

  lsb_release -rd
  Description:	Ubuntu 16.04 LTS
  Release:	16.04

  apt-cache policy sudo
  sudo:
    Installed: 1.8.16-0ubuntu1
    Candidate: 1.8.16-0ubuntu1
    Version table:
   *** 1.8.16-0ubuntu1 500
          500 ftp://ls-mirror.csir.co.za/mirrors/ubuntu/repositories/xenial xenial/main amd64 Packages
          100 /var/lib/dpkg/status

  The local repo is built from archive.ubuntu.com via debmirror.
  All updates installed.

  Expected result:
  sudo -l to show sudo permissions

  Received result:
  Segmentation fault (core dumped)

  /var/log/syslog:
  Apr 26 17:17:24 cstrydom-vm1 kernel: [  709.535083] sudo[10116]: segfault at 0 ip 00007fa7a7aac944 sp 00007ffe547c4458 error 4 in sudoers.so[7fa7a7a80000+4b000]

  gdb output:
  Starting program: /usr/bin/sudo
  [Thread debugging using libthread_db enabled]
  Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
  sudo: effective uid is not 0, is /usr/bin/sudo on a file system with the 'nosuid' option set or an NFS file system without root privileges?
  [Inferior 1 (process 4911) exited with code 01]

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