Comment 26 for bug 670622

Ubuntu has released advisories to correct this:

http://www.ubuntu.com/usn/usn-1045-1 (fuse)
http://www.ubuntu.com/usn/usn-1045-2 (mount)

But I can still reproduce the issue on 10.04 LTS (although it doesn't like the Makefile too much):

user@ubuntu:~/CVE-2010-3879$ make
[[ -x DirModifyInotify ]] && rm -f DirModifyInotify || :
/bin/sh: [[: not found
[[ -x FuseMinimal ]] && rm -f FuseMinimal || :
/bin/sh: [[: not found
[[ -L tmp ]] && rm -f tmp || :
/bin/sh: [[: not found
[[ -d tmp-moved ]] && rm -rf tmp-moved || :
/bin/sh: [[: not found
[[ -d tmp-moved ]] && sudo umount tmp-moved/proc && rm -rf tmp-moved || :
/bin/sh: [[: not found
gcc -o DirModifyInotify DirModifyInotify.c
gcc -D_FILE_OFFSET_BITS=64 -lfuse -Wall FuseMinimal.c -o FuseMinimal
ps ax | grep init | grep -v grep
    1 ? Ss 0:01 /sbin/init
sh Test.sh
Using target call count 8
Move triggered at count 8
Cannot find /proc/version - is /proc mounted?
make: *** [test] Error 1
user@ubuntu:~/CVE-2010-3879$ dpkg -l mount libfuse2
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Description
+++-==============-==============-============================================
ii libfuse2 2.8.1-1.1ubunt Filesystem in USErspace library
ii mount 2.17.2-0ubuntu Tools for mounting and manipulating filesyst

Those are the packages that are supposed to fix the flaw.