lp:ubuntu/hardy-security/fuse

Created by James Westby and last modified
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Status:
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34. By Marc Deslauriers

* SECURITY UPDATE: arbitrary unprivileged unmount
  - debian/patches/CVE-2011-0541.dpatch: don't follow symlinks when
    unmounting in case of a failed mtab update in util/fusermount.c.
  - debian/patches/CVE-2011-0542.dpatch: chdir to / before performing
    mount/umount in util/fusermount.c.
  - debian/patches/CVE-2011-0543.dpatch: remove legacy util-linux
    support so symlinks don't get followed upon fallback in
    lib/mount_util.c, util/fusermount.c.
  - CVE-2011-0541
  - CVE-2011-0542
  - CVE-2011-0543

33. By Marc Deslauriers

* SECURITY UPDATE: arbitrary unprivileged unmount (LP: #670622)
  - debian/patches/CVE-2010-3879.dpatch: backported numerous fuse fixes
    from git tree to fix security issues.
    - Block SIGCHLD when executing mount and umount
    - Use "--no-canonicalize' option of mount(8)
    - Fix race if two "fusermount -u" instances are run in parallel
    - Make sure the path to be unmounted doesn't refer to a symlink
    - Use umount --fake to update /etc/mtab
  - debian/patches/200-fix_mount_symlink_handling: removed, changes are
    in the new patch.
  - debian/control: make libfuse2 depend on version of mount that
    contains backported --fake support.
  - CVE-2010-3879

32. By Kees Cook

* SECURITY UPDATE: local attacker can trick fuse into unmounting a
  filesystem from the wrong location.
  - debian/patches/200-fix_mount_symlink_handling: backported upstream
    fixes.
  - CVE-2009-3297

31. By Oliver Grawert

* add update-notifier message about required fuse group membership
* use /bin/sh in fuse-utils.postinst instead of /bin/bash

30. By Colin Watson

* Resynchronise with Debian. Remaining changes:
  - Don't install the init script; install the udev rule and the module
    configuration file instead.
  - debian/45-fuse.rules: set /dev/fuse group to fuse.
  - debian/fuse-utils.modprobe: module configuration file that mounts the
    control filesystem when fuse is loaded and unmounts it when fuse is
    unloaded, along with checking that the control FS is mounting before
    unmounting it.
  - debian/fuse-utils.install: add the udev rule, the module configuration
    file, and ulockmgr_server.
  - Load fuse on install, and set it so it gets loaded on reboot.
  - Move fusermount and ulockmgr_server to /bin and associated libraries
    to /lib.
  - Create libfuse2-udeb and fuse-utils-udeb.
  - Copy /sbin/mount.fuse and the fuse kernel module into the initramfs.

29. By Colin Watson

* Resynchronise with Debian. Remaining changes:
  - Don't install the init script; install the udev rule and the module
    configuration file instead.
  - debian/45-fuse.rules: set /dev/fuse group to fuse.
  - debian/fuse-utils.modprobe: module configuration file that mounts the
    control filesystem when fuse is loaded and unmounts it when fuse is
    unloaded, along with checking that the control FS is mounting before
    unmounting it.
  - debian/fuse-utils.install: add the udev rule, the module configuration
    file, and ulockmgr_server.
  - Load fuse on install, and set it so it gets loaded on reboot.
  - Move fusermount and ulockmgr_server to /bin and associated libraries
    to /lib.
  - Create libfuse2-udeb and fuse-utils-udeb.
  - Copy /sbin/mount.fuse and the fuse kernel module into the initramfs.

28. By Colin Watson

* Resynchronise with Debian. Remaining changes:
  - Don't install the init script; install the udev rule and the module
    configuration file instead.
  - debian/45-fuse.rules: set /dev/fuse group to fuse.
  - debian/fuse-utils.modprobe: module configuration file that mounts the
    control filesystem when fuse is loaded and unmounts it when fuse is
    unloaded, along with checking that the control FS is mounting before
    unmounting it.
  - debian/fuse-utils.install: add the udev rule, the module configuration
    file, and ulockmgr_server.
  - Load fuse on install, and set it so it gets loaded on reboot.
  - Move fusermount and ulockmgr_server to /bin and associated libraries
    to /lib.
  - Create libfuse2-udeb and fuse-utils-udeb.
  - Copy /sbin/mount.fuse and the fuse kernel module into the initramfs.

27. By Colin Watson

Add udeb shlibs entries.

26. By Colin Watson

Copy the fuse kernel module into the initramfs.

25. By Colin Watson

Copy /sbin/mount.fuse into the initramfs.

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