package libpam-modules 1.1.8-3.1ubuntu3.1 failed to install/upgrade: trying to overwrite shared '/usr/share/man/man8/pam_unix.8.gz', which is different from other instances of package libpam-modules:i386

[matt davis]

E: /var/cache/apt/archives/libpam-modules_1.1.8-3.1ubuntu3.1_i386.deb: trying to overwrite shared '/usr/share/man/man8/pam_unix.8.gz', which is different from other instances of package libpam-modules:i386

ProblemType: Package
DistroRelease: Ubuntu 15.10
Package: libpam-modules 1.1.8-3.1ubuntu3.1
ProcVersionSignature: Ubuntu 4.2.0-34.39-generic 4.2.8-ckt4
Uname: Linux 4.2.0-34-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
Date: Wed Mar 16 10:47:24 2016
DuplicateSignature: package:libpam-modules:1.1.8-3.1ubuntu3.1:trying to overwrite shared '/usr/share/man/man8/pam_unix.8.gz', which is different from other instances of package libpam-modules:i386
ErrorMessage: trying to overwrite shared '/usr/share/man/man8/pam_unix.8.gz', which is different from other instances of package libpam-modules:i386
InstallationDate: Installed on 2013-03-15 (1097 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130314)
RelatedPackageVersions:
 dpkg 1.18.2ubuntu5.1
 apt 1.0.10.2ubuntu1
SourcePackage: pam
Title: package libpam-modules 1.1.8-3.1ubuntu3.1 failed to install/upgrade: trying to overwrite shared '/usr/share/man/man8/pam_unix.8.gz', which is different from other instances of package libpam-modules:i386
UpgradeStatus: Upgraded to wily on 2015-10-23 (145 days ago)

[matt davis (mtthwldvs)]

The following packages have unmet dependencies:
 libpam-modules : Recommends: update-motd but it is not installed
                  Breaks: libpam-modules:i386 (!= 1.1.8-3.1ubuntu3.1) but 1.1.8-3.1ubuntu3 is installed
 libpam-modules:i386 : PreDepends: libpam-modules-bin:i386 (= 1.1.8-3.1ubuntu3)
                       Recommends: update-motd:i386 but it is not installable
                       Breaks: libpam-modules (!= 1.1.8-3.1ubuntu3) but 1.1.8-3.1ubuntu3.1 is installed

[Steve Langasek (vorlon)]

Confirmed; this seems to be a regression in multiarch compatibility introduced by this latest security update. This needs to be addressed by including the manpage in the cve diff, along with the changes to modules/pam_unix/pam_unix.8.xml, so that the file is not regenerated (differently) at build time.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Steve Langasek (vorlon)]

/usr/share/man/man8/pam_exec.8.gz is also affected.

[Steve Langasek (vorlon)]

As a workaround, a user hitting this issue can run:
  sudo rm -f /usr/share/man/man8/pam_exec.8.gz /usr/share/man/man8/pam_unix.8.gz && sudo apt-get -f install

[Launchpad Janitor (janitor)]

This bug was fixed in the package pam - 1.1.3-7ubuntu2.2

---------------
pam (1.1.3-7ubuntu2.2) precise-security; urgency=medium

  * SECURITY REGRESSION: multiarch update issue (LP: #1558114)
    - debian/patches-applied/cve-2015-3238.patch: removed manpage changes
      so they don't get regenerated during build.
    - CVE-2015-3238

 -- Marc Deslauriers <email address hidden> Wed, 16 Mar 2016 13:32:15 -0400

[Launchpad Janitor (janitor)]

This bug was fixed in the package pam - 1.1.8-1ubuntu2.2

---------------
pam (1.1.8-1ubuntu2.2) trusty-security; urgency=medium

  * SECURITY REGRESSION: multiarch update issue (LP: #1558114)
    - debian/patches-applied/cve-2015-3238.patch: removed manpage changes
      so they don't get regenerated during build.
    - CVE-2015-3238

 -- Marc Deslauriers <email address hidden> Wed, 16 Mar 2016 13:30:15 -0400

[Launchpad Janitor (janitor)]

This bug was fixed in the package pam - 1.1.8-3.1ubuntu3.2

---------------
pam (1.1.8-3.1ubuntu3.2) wily-security; urgency=medium

  * SECURITY REGRESSION: multiarch update issue (LP: #1558114)
    - debian/patches-applied/cve-2015-3238.patch: removed manpage changes
      so they don't get regenerated during build.
    - CVE-2015-3238

 -- Marc Deslauriers <email address hidden> Wed, 16 Mar 2016 13:27:40 -0400

[Steve Langasek (vorlon)]

According to bug #1558597, the precise version is still buggy.

[Tyler Hicks (tyhicks)]

I've fixed the issue in Precise using bug #1558597 to track it.

[Launchpad Janitor (janitor)]

This bug was fixed in the package pam - 1.1.8-3.2ubuntu2

---------------
pam (1.1.8-3.2ubuntu2) xenial; urgency=medium

  * debian/patches-applied/cve-2015-3238.patch: removed manpage changes
    so they don't get regenerated during build and cause a multiarch
    installation issue. (LP: #1558114)

 -- Marc Deslauriers <email address hidden> Wed, 16 Mar 2016 13:34:02 -0400