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[Launchpad Bug Tracker <851986@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package apparmor - 2.7.0-0ubuntu1

---------------
apparmor (2.7.0-0ubuntu1) precise; urgency=low

  * New upstream release. Fixes the following:
    - LP: #794974
    - LP: #815883
    - LP: #840973
  * Drop the following patches, included upstream:
    - af_names-generation.patch
    - 0004-adjust-logprof-log-search-order.patch
    - 0005-lp826914.patch
    - 0006-lp838275.patch
    - 0007-fix-introspection-tests.patch
  * Rename 0003-add-debian-integration-to-lighttpd.patch to 0002
  * debian/patches/0003-commits-through-r1882.patch: several bug,
    documentation and performance fixes on our road to AppArmor 2.8
    (LP: #840734, LP: #905412)
  * debian/patches/0004-lp887992.patch: cups-client abstraction should allow
    owner read of @{HOME}/.cups/client.conf and @{HOME}/.cups/lpoptions
    (LP: #887992)
  * update debian/patches/0001-add-chromium-browser.patch for deeper
    directories of /sys/devices/pci (LP: #885833)
  * debian/patches/0005-lp884748.patch: allow kate as text editor in the
    browsers abstraction (LP: #884748)
  * debian/patches/0006-lp870992.patch: abstractions/fonts should allow access
    to ~/.fonts.conf.d (LP: #870992)
  * debian/patches/0007-lp860856.patch: allow read access to sitecustomize.py
    in the python abstraction, which is needed for apport hooks to work in
    python applications (LP: #860856)
  * debian/patches/0008-lp852062.patch: update binaries for transmission
    clients (LP: #852062)
  * debian/patches/0009-lp851977.patch: allow ixr access to exo-open for
    Xubuntu and friends (LP: #851977)
  * debian/patches/0010-lp890894.patch: allow access to Thunar as well as
    thunar in ubuntu-integration abstraction (LP: #890894)
  * debian/patches/0011-lp817956.patch: update usr.sbin.sshd example profile
    (LP: #817956)
  * debian/patches/0012-lp458922.patch: update dovecot deliver profile to
    access various .conf files for dovecot (LP: #458922)
  * debian/patches/0013-lp769148.patch: allow avahi to do dbus introspection
    (LP: #769148)
  * debian/patches/0014-lp904548.patch: fix typo for multiarch line for gconv
    (LP: #904548)
  * debian/patches/0015-lp712584.patch: Nvidia users need access to
    /dev/nvidia* files for various plugins to work right. Since these are all
    focused around multimedia, add the acceses to the multimedia abstraction.
    (LP: #712584)
  * debian/patches/0016-lp562831.patch: allow fireclam plugin to work
    (LP: #562831)
  * debian/patches/0017-lp662906.patch: allow software-center in the ubuntu
    integration browser abstraction (LP: #662906)
  * debian/patches/0018-deny-home-pki-so.patch: update private-files
    abstraction to deny write and link to ~/.pki/nssdb/*so files (LP: #911847)
  * debian/patches/0019-lp899963.patch: add audacity to the
    ubuntu-media-players abstraction (LP: #899963)
  * debian/patches/0020-lp912754a.patch,0021-lp912754b.patch: add p11-kit
    abstraction and add it to the authentication abstraction (LP: #912754)
  * debian/patches/0022-workaround-lp851986.patch: instead of using Ux
    in the ubuntu and launchpad abstractions, use a helper child profile.
    This will help work around the lack of environment filtering
    (LP: #851986)
  * debian/patches/0023-syslog-ng-needs-dac-read-search.patch: adjust syslog-ng
    profile for dac_read_search
  * debian/patches/0024-fix-python-and-ruby-autogeneration.patch: fix python
    and ruby autogeneration when using aa-autodep and aa-genprof
  * debian/patches/0025-lp914184.patch: allow the creation of enchant .config
    directory in the enchant abstraction (LP: #914184)
  * debian/patches/0026-lp914190.patch: block write access to ~/.kde/env
    because KDE automatically sources scripts in that folder on startup
    (LP: #914190)
  * debian/pathes/0027-lp914386.patch: add xdg-desktop abstraction and
    adjust gnome and kde abstractions to use it (LP: #914386)
  * debian/patches/0028-testsuite-fixes.patch: testsuite fixes in the kernel
    regression tests
 -- Jamie Strandboge <jamie@xxxxxxxxxx>   Thu, 12 Jan 2012 12:55:17 +0100

** Changed in: apparmor (Ubuntu Precise)
       Status: Fix Committed => Fix Released

-- 
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https://bugs.launchpad.net/bugs/851986

Title:
  use of Ux in ubuntu-* abstractions and profiles is too lenient and
  should be improved

Status in “apparmor” package in Ubuntu:
  Fix Released
Status in “cups” package in Ubuntu:
  Triaged
Status in “evince” package in Ubuntu:
  In Progress
Status in “firefox” package in Ubuntu:
  Invalid
Status in “apparmor” source package in Oneiric:
  Won't Fix
Status in “cups” source package in Oneiric:
  Won't Fix
Status in “evince” source package in Oneiric:
  Won't Fix
Status in “firefox” source package in Oneiric:
  Won't Fix
Status in “apparmor” source package in Precise:
  Fix Released
Status in “cups” source package in Precise:
  Won't Fix
Status in “evince” source package in Precise:
  In Progress
Status in “firefox” source package in Precise:
  Invalid

Bug description:
  Ux clears potentially harmful environment variables such as LD_PRELOAD
  and LD_LIBRARY_PATH (and others). Because it doesn't clear out all
  variables that can influence child processes, the confined parent
  process may have too much influence over the child. When considering
  GUI applications such as those based on gtk, child processes can also
  be called with --gtk-module.

  Since there are several applications in the ubuntu-specific
  abstractions that can be affected in this manner, evince, firefox, the
  chromium profile as included in apparmor-profiles and the ubuntu-
  specific abstractions themselves should be adjusted to address this
  issue. Cups is also affected because of its use of Ux with filters,
  however it runs these filters as non-root and the environment under
  which these filters is run is more tightly controlled. Cups should be
  investigated more and we should consider confining (at least) those
  filters that we ship in Ubuntu.

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