On Sat, 29 May 2010, Christian PERRIER wrote:
Quoting Debian BTS (debb...@busoni.debian.org):
possible security breach
Where?
you are unable to unmount a remote volume, that could ave been mounted
with permisison wider than the ones on the romote one.
Package: smbfs
Version: 2:3.2.5-4lenny11
Severity: grave
Justification: causes non-serious data loss - locks machine on shutdown =
? How both could be related?
If you have to shutdown the host the only way I managed was to turn off
the power, this could make problem on unsaved files.
after mounting as an ordinary user on a subdirectory of his home directory a
volume on a windows2000 PDC this network volume become unmountable since
smbumount (as well umount) tell that only cifs shares can be umounted.
Upon shutdown of the machine the unmountable share provokes a lock requiring
a complete poweroff to complete shutdown.
Please provide the full sequence of events.
How did the user mount the volume? By using which command?
user$ cd ~ ; mkdir loc
user$ smbmount \\\\WIN2KSERVER\\SHARE loc
user$ less loc/sub/file.log
user$ smbumount loc -> says that can umount only cifs
What's the content of /etc/fstab?
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
/dev/sda1 / ext3 defaults,errors=remount-ro 0 1
/dev/sdb1 /backup ext3 defaults 0 2
/dev/sdb2 /home ext3 defaults 0 2
/dev/sda5 /var ext3 defaults 0 2
/dev/sda6 /var/mail ext3 defaults 0 2
/dev/sda2 none swap sw 0 0
/dev/hda /media/cdrom0 udf,iso9660 user,noauto 0 0
)
Is the volume mounted as smbfs or cifs?
smbfs
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