FUSE 'fusermount' Race Condition Vulnerability

BID:37983

Info

FUSE 'fusermount' Race Condition Vulnerability

Bugtraq ID: 37983
Class: Race Condition Error
CVE: CVE-2009-3297
CVE-2010-0789
Remote: No
Local: Yes
Published: Jan 27 2010 12:00AM
Updated: Apr 13 2015 09:37PM
Credit: Dan Rosenberg
Vulnerable: Ubuntu Ubuntu Linux 9.10 sparc
Ubuntu Ubuntu Linux 9.10 powerpc
Ubuntu Ubuntu Linux 9.10 lpia
Ubuntu Ubuntu Linux 9.10 i386
Ubuntu Ubuntu Linux 9.10 ARM
Ubuntu Ubuntu Linux 9.10 amd64
Ubuntu Ubuntu Linux 8.04 LTS sparc
Ubuntu Ubuntu Linux 8.04 LTS powerpc
Ubuntu Ubuntu Linux 8.04 LTS lpia
Ubuntu Ubuntu Linux 8.04 LTS i386
Ubuntu Ubuntu Linux 8.04 LTS amd64
Ubuntu Ubuntu Linux 10.10 powerpc
Ubuntu Ubuntu Linux 10.10 i386
Ubuntu Ubuntu Linux 10.10 ARM
Ubuntu Ubuntu Linux 10.10 amd64
Ubuntu Ubuntu Linux 10.04 sparc
Ubuntu Ubuntu Linux 10.04 powerpc
Ubuntu Ubuntu Linux 10.04 i386
Ubuntu Ubuntu Linux 10.04 ARM
Ubuntu Ubuntu Linux 10.04 amd64
SuSE SUSE Linux Enterprise SDK 10
SuSE Suse Linux Enterprise Desktop 10
SuSE SUSE Linux Enterprise 11
SuSE SUSE Linux Enterprise 10 SP3
SuSE SUSE Linux Enterprise 10 SP2
SuSE Moblin 2.1
SuSE Moblin 2.0
S.u.S.E. openSUSE 11.2
S.u.S.E. openSUSE 11.1
S.u.S.E. openSUSE 11.0
Redhat Enterprise Linux 5 Server
Pardus Linux 2009 0
Miklos Szeredi FUSE 0
Mandriva Linux Mandrake 2010.0 x86_64
Mandriva Linux Mandrake 2010.0
Mandriva Linux Mandrake 2009.1 x86_64
Mandriva Linux Mandrake 2009.1
Mandriva Linux Mandrake 2009.0 x86_64
Mandriva Linux Mandrake 2009.0
MandrakeSoft Enterprise Server 5 x86_64
MandrakeSoft Enterprise Server 5
Debian Linux 5.0 sparc
Debian Linux 5.0 s/390
Debian Linux 5.0 powerpc
Debian Linux 5.0 mipsel
Debian Linux 5.0 mips
Debian Linux 5.0 m68k
Debian Linux 5.0 ia-64
Debian Linux 5.0 ia-32
Debian Linux 5.0 hppa
Debian Linux 5.0 armel
Debian Linux 5.0 arm
Debian Linux 5.0 amd64
Debian Linux 5.0 alpha
Debian Linux 5.0
Debian Linux 4.0 sparc
Debian Linux 4.0 s/390
Debian Linux 4.0 powerpc
Debian Linux 4.0 mipsel
Debian Linux 4.0 mips
Debian Linux 4.0 m68k
Debian Linux 4.0 ia-64
Debian Linux 4.0 ia-32
Debian Linux 4.0 hppa
Debian Linux 4.0 armel
Debian Linux 4.0 arm
Debian Linux 4.0 amd64
Debian Linux 4.0 alpha
Debian Linux 4.0
Not Vulnerable:

Discussion

FUSE 'fusermount' Race Condition Vulnerability

FUSE is prone to a race-condition vulnerability.

A local attacker can exploit this issue to cause a denial of service via symlink attacks involving FUSE shares belonging to privileged users.

NOTE: For an exploit to succeed, the attacker must be a member of the 'fuse' group.

Exploit / POC

FUSE 'fusermount' Race Condition Vulnerability

Attackers can use standard commands to exploit this issue.

Solution / Fix

FUSE 'fusermount' Race Condition Vulnerability

Solution:
Updates are available. Please see the references for more information.


Ubuntu Ubuntu Linux 9.10 sparc

Debian Linux 5.0 ia-64

Ubuntu Ubuntu Linux 8.04 LTS powerpc

Ubuntu Ubuntu Linux 8.04 LTS sparc

Ubuntu Ubuntu Linux 9.10 powerpc

Debian Linux 5.0 alpha

Ubuntu Ubuntu Linux 8.04 LTS amd64

Ubuntu Ubuntu Linux 9.10 lpia

Debian Linux 5.0 mipsel

Debian Linux 4.0 amd64

Ubuntu Ubuntu Linux 10.10 amd64

Debian Linux 4.0 ia-32

Ubuntu Ubuntu Linux 10.04 powerpc

Debian Linux 4.0 hppa

Ubuntu Ubuntu Linux 9.10 i386

Ubuntu Ubuntu Linux 10.04 amd64

Debian Linux 5.0 armel

Ubuntu Ubuntu Linux 9.10 ARM

Ubuntu Ubuntu Linux 9.10 amd64

Debian Linux 4.0 mipsel

Ubuntu Ubuntu Linux 10.04 ARM

Debian Linux 5.0 mips

Debian Linux 4.0 ia-64

Debian Linux 5.0 sparc

Ubuntu Ubuntu Linux 10.04 i386

Debian Linux 4.0 arm

Debian Linux 4.0 powerpc

Debian Linux 5.0 ia-32

Ubuntu Ubuntu Linux 10.10 ARM

Debian Linux 5.0 s/390

Ubuntu Ubuntu Linux 8.04 LTS lpia

Debian Linux 5.0 hppa

Debian Linux 4.0 sparc

Debian Linux 4.0 s/390

Debian Linux 5.0 arm

Ubuntu Ubuntu Linux 10.10 powerpc

Debian Linux 4.0 alpha

Ubuntu Ubuntu Linux 8.04 LTS i386

Debian Linux 5.0 amd64

Ubuntu Ubuntu Linux 10.10 i386

Ubuntu Ubuntu Linux 10.04 sparc

Debian Linux 5.0 powerpc

References

FUSE 'fusermount' Race Condition Vulnerability

References:

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