[Bug 1686325] Re: undefined symbol in libpam-winbind

[Andrew Reis]

*** This bug is a duplicate of bug 1677329 ***
    https://bugs.launchpad.net/bugs/1677329

Also having this issue. After symlinking /lib/x86_64-linux-gnu/security
to /lib/security, receiving:

Jul 19 12:05:41 hostname login[28882]: PAM unable to dlopen(pam_winbind.so): /lib/security/pam_winbind.so: undefined symbol: wbcCtxFree
Jul 19 12:05:41 hostname login[28882]: PAM adding faulty module: pam_winbind.so

user at hostname:/lib$ dpkg -l | grep 'samba\|winbind' | awk '{print $2" --- "$3}'
libnss-winbind:amd64 --- 2:4.5.8+dfsg-0ubuntu0.17.04.4
libpam-winbind:amd64 --- 2:4.5.8+dfsg-0ubuntu0.17.04.4
libwbclient0:amd64 --- 2:4.5.8+dfsg-0ubuntu0.17.04.4
python-samba --- 2:4.5.8+dfsg-0ubuntu0.17.04.4
samba --- 2:4.5.8+dfsg-0ubuntu0.17.04.4
samba-common --- 2:4.5.8+dfsg-0ubuntu0.17.04.4
samba-common-bin --- 2:4.5.8+dfsg-0ubuntu0.17.04.4
samba-dsdb-modules --- 2:4.5.8+dfsg-0ubuntu0.17.04.4
samba-libs:amd64 --- 2:4.5.8+dfsg-0ubuntu0.17.04.4
samba-vfs-modules --- 2:4.5.8+dfsg-0ubuntu0.17.04.4
winbind --- 2:4.5.8+dfsg-0ubuntu0.17.04.4

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https://bugs.launchpad.net/bugs/1686325

Title:
  undefined symbol in libpam-winbind

Status in samba package in Ubuntu:
  Confirmed

Bug description:
  When trying to get PAM to authenticate to Active Directory, I get this
  in /var/log/auth.log:

  PAM unable to dlopen(pam_winbind.so): /lib/security/pam_winbind.so:
  undefined symbol: wbcCtxFree

  $ dpkg -l | grep winbind
  ii  libnss-winbind:amd64                                 2:4.5.8+dfsg-0ubuntu0.17.04.1                      amd64        Samba nameservice integration plugins
  ii  libpam-winbind:amd64                                 2:4.5.8+dfsg-0ubuntu0.17.04.1                      amd64        Windows domain authentication integration plugin
  ii  libwbclient0:amd64                                   2:4.5.8+dfsg-0ubuntu0.17.04.1                      amd64        Samba winbind client library
  ii  winbind                                              2:4.5.8+dfsg-0ubuntu0.17.04.1                      amd64        service to resolve user and group information from Windows NT servers

  $ lsb_release -rd
  Description:    Ubuntu 17.04
  Release:        17.04

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