In a very quick analysis I found that all the packages (on my system) that use "if dpkg-maintscript-helper supports ..." are affected.
daniel@daydream:~$ grep dpkg-maintscript-helper /var/lib/dpkg/info/*.postinst | grep support /var/lib/dpkg/info/apparmor.postinst:if dpkg-maintscript-helper supports rm_conffile; then /var/lib/dpkg/info/libreoffice-common.postinst: if dpkg-maintscript-helper supports rm_conffile; then /var/lib/dpkg/info/libreoffice-common.postinst: if dpkg-maintscript-helper supports mv_conffile; then /var/lib/dpkg/info/lightdm.postinst:if dpkg-maintscript-helper supports mv_conffile; then /var/lib/dpkg/info/ntpdate.postinst:if dpkg-maintscript-helper supports rm_conffile; then /var/lib/dpkg/info/ntpdate.postinst:if dpkg-maintscript-helper supports mv_conffile; then daniel@daydream:~$ sudo dpkg-reconfigure libreoffice-common dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_NAME missing dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_PACKAGE missing dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_NAME missing dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_PACKAGE missing daniel@daydream:~$ sudo dpkg-reconfigure ntpdate dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_NAME missing dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_PACKAGE missing dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_NAME missing dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_PACKAGE missing daniel@daydream:~$ sudo dpkg-reconfigure apparmor dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_NAME missing dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_PACKAGE missing * Starting AppArmor profiles Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox [ OK ] * Reloading AppArmor profiles Skipping profile in /etc/apparmor.d/disable: usr.bin.firefox [ OK ] daniel@daydream:~$ Package WITHOUT "if dpkg-maintscript-helper supports ..." daniel@daydream:~$ sudo dpkg-reconfigure gedit update-alternatives: /usr/bin/gedit wird verwendet, um /usr/bin/gnome-text-editor (gnome-text-editor) im Auto-Modus bereitzustellen. daniel@daydream:~$ ** Also affects: lightdm (Ubuntu) Importance: Undecided Status: New ** Changed in: lightdm (Ubuntu) Status: New => Confirmed ** Also affects: ntp (Ubuntu) Importance: Undecided Status: New ** Changed in: ntp (Ubuntu) Status: New => Confirmed ** Also affects: libreoffice (Ubuntu) Importance: Undecided Status: New ** Changed in: libreoffice (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/706354 Title: dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_PACKAGE missing Status in AppArmor Linux application security framework: Invalid Status in “apparmor” package in Ubuntu: Confirmed Status in “debconf” package in Ubuntu: Confirmed Status in “libreoffice” package in Ubuntu: Confirmed Status in “lightdm” package in Ubuntu: Confirmed Status in “ntp” package in Ubuntu: Confirmed Bug description: Binary package hint: dpkg natty i386 updated into a terminal, get this output: oem@oem-desktop:~$ sudo dpkg-reconfigure apparmor [sudo] password for oem: dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_NAME missing dpkg-maintscript-helper: warning: environment variable DPKG_MAINTSCRIPT_PACKAGE missing * Starting AppArmor profiles ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: dpkg 1.15.8.7ubuntu2 ProcVersionSignature: Ubuntu 2.6.37-12.26-generic-pae 2.6.37 Uname: Linux 2.6.37-12-generic-pae i686 NonfreeKernelModules: nvidia Architecture: i386 Date: Sat Jan 22 18:48:00 2011 ProcEnviron: LANGUAGE=fr_FR:fr:en_GB:en LANG=fr_FR.UTF-8 LC_MESSAGES=fr_FR.utf8 SHELL=/bin/bash SourcePackage: dpkg To manage notifications about this bug go to: https://bugs.launchpad.net/apparmor/+bug/706354/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp