Linux Kernel NFS and EXT3 Combination Remote Denial of Service Vulnerability

BID:19396

CVE-2006-3468 |

Info

Linux Kernel NFS and EXT3 Combination Remote Denial of Service Vulnerability

Bugtraq ID: 19396
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2006-3468
Remote: No
Local: Yes
Published: Aug 07 2006 12:00AM
Updated: Mar 19 2015 09:30AM
Credit: James McKenzie discovered this issue.
Vulnerable: Ubuntu Ubuntu Linux 5.10 sparc
Ubuntu Ubuntu Linux 5.10 powerpc
Ubuntu Ubuntu Linux 5.10 i386
Ubuntu Ubuntu Linux 5.10 amd64
Ubuntu Ubuntu Linux 5.0 4 powerpc
Ubuntu Ubuntu Linux 5.0 4 i386
Ubuntu Ubuntu Linux 5.0 4 amd64
Ubuntu Ubuntu Linux 6.06 LTS sparc
Ubuntu Ubuntu Linux 6.06 LTS powerpc
Ubuntu Ubuntu Linux 6.06 LTS i386
Ubuntu Ubuntu Linux 6.06 LTS amd64
Trustix Secure Linux 3.0
SuSE SUSE Linux Enterprise Server 9
SuSE SUSE Linux Enterprise Server 8
+ Linux kernel 2.4.21
+ Linux kernel 2.4.19
SuSE SUSE Linux Enterprise Server 10
SuSE SUSE Linux Enterprise Desktop 10
S.u.S.E. UnitedLinux 1.0
S.u.S.E. SuSE Linux Standard Server 8.0
S.u.S.E. SuSE Linux School Server for i386
S.u.S.E. SUSE LINUX Retail Solution 8.0
S.u.S.E. SuSE Linux Openexchange Server 4.0
S.u.S.E. Open-Enterprise-Server 9.0
S.u.S.E. Open-Enterprise-Server 1
S.u.S.E. Open-Enterprise-Server 0
S.u.S.E. Office Server
S.u.S.E. Novell Linux POS 9
S.u.S.E. Novell Linux Desktop 9.0
S.u.S.E. Novell Linux Desktop 1.0
S.u.S.E. Linux Professional 10.0 OSS
S.u.S.E. Linux Professional 10.0
S.u.S.E. Linux Professional 9.3 x86_64
S.u.S.E. Linux Professional 9.3
S.u.S.E. Linux Professional 9.2 x86_64
S.u.S.E. Linux Professional 9.2
S.u.S.E. Linux Professional 9.1 x86_64
S.u.S.E. Linux Professional 9.1
S.u.S.E. Linux Professional 10.1
S.u.S.E. Linux Personal 10.0 OSS
S.u.S.E. Linux Personal 9.3 x86_64
S.u.S.E. Linux Personal 9.3
S.u.S.E. Linux Personal 9.2 x86_64
S.u.S.E. Linux Personal 9.2
S.u.S.E. Linux Personal 9.1 x86_64
S.u.S.E. Linux Personal 9.1
S.u.S.E. Linux Personal 10.1
S.u.S.E. Linux Openexchange Server
S.u.S.E. Linux Office Server
S.u.S.E. Linux Enterprise Server for S/390 9.0
S.u.S.E. Linux Enterprise Server for S/390
S.u.S.E. Linux Desktop 1.0
S.u.S.E. Linux Database Server 0
S.u.S.E. Linux Connectivity Server
RedHat Enterprise Linux WS 4
RedHat Enterprise Linux ES 4
RedHat Desktop 4.0
Red Hat Enterprise Linux AS 4
Mandriva Linux Mandrake 2006.0 x86_64
Mandriva Linux Mandrake 2006.0
MandrakeSoft Multi Network Firewall 2.0
MandrakeSoft Corporate Server 3.0 x86_64
MandrakeSoft Corporate Server 3.0
Linux kernel 2.6.17 .7
Linux kernel 2.6.17 .6
Linux kernel 2.6.17 .5
Linux kernel 2.6.17 .4
Linux kernel 2.6.17 .3
Linux kernel 2.6.17 .1
Linux kernel 2.6.17 -rc5
Linux kernel 2.6.17
Linux kernel 2.6.16 27
Linux kernel 2.6.16 13
Linux kernel 2.6.16 .9
Linux kernel 2.6.16 .8
Linux kernel 2.6.16 .7
Linux kernel 2.6.16 .5
Linux kernel 2.6.16 .4
Linux kernel 2.6.16 .3
Linux kernel 2.6.16 .23
Linux kernel 2.6.16 .21
Linux kernel 2.6.16 .2
Linux kernel 2.6.16 .19
Linux kernel 2.6.16 .18
Linux kernel 2.6.16 .17
Linux kernel 2.6.16 .16
Linux kernel 2.6.16 .12
Linux kernel 2.6.16 .11
Linux kernel 2.6.16 .1
Linux kernel 2.6.16 -rc1
Linux kernel 2.6.16
Linux kernel 2.6.15 .6
Linux kernel 2.6.15 .4
Linux kernel 2.6.15 .3
Linux kernel 2.6.15 .2
Linux kernel 2.6.15 .1
Linux kernel 2.6.15 -rc6
Linux kernel 2.6.15 -rc5
Linux kernel 2.6.15 -rc4
Linux kernel 2.6.15 -rc3
Linux kernel 2.6.15 -rc2
Linux kernel 2.6.15 -rc1
Linux kernel 2.6.15
Linux kernel 2.6.14 .5
Linux kernel 2.6.14 .4
Linux kernel 2.6.14 .3
Linux kernel 2.6.14 .2
Linux kernel 2.6.14 .1
Linux kernel 2.6.14 -rc4
Linux kernel 2.6.14 -rc3
Linux kernel 2.6.14 -rc2
Linux kernel 2.6.14 -rc1
Linux kernel 2.6.14
Linux kernel 2.6.13 .4
Linux kernel 2.6.13 .3
Linux kernel 2.6.13 .2
Linux kernel 2.6.13 .1
Linux kernel 2.6.13 -rc7
Linux kernel 2.6.13 -rc6
Linux kernel 2.6.13 -rc4
Linux kernel 2.6.13 -rc1
Linux kernel 2.6.13
Linux kernel 2.6.12 .6
Linux kernel 2.6.12 .5
Linux kernel 2.6.12 .4
Linux kernel 2.6.12 .3
Linux kernel 2.6.12 .2
Linux kernel 2.6.12 .1
Linux kernel 2.6.12 -rc5
Linux kernel 2.6.12 -rc4
Linux kernel 2.6.12 -rc1
Linux kernel 2.6.12
Linux kernel 2.6.11 .8
Linux kernel 2.6.11 .7
Linux kernel 2.6.11 .6
Linux kernel 2.6.11 .5
Linux kernel 2.6.11 .12
Linux kernel 2.6.11 .11
Linux kernel 2.6.11 -rc4
Linux kernel 2.6.11 -rc3
Linux kernel 2.6.11 -rc2
Linux kernel 2.6.11
Linux kernel 2.6.10 rc2
Linux kernel 2.6.10
+ Red Hat Fedora Core3
 + Red Hat Fedora Core2
 + Trustix Secure Linux 3.0
+ Ubuntu Ubuntu Linux 5.0 4 powerpc
 + Ubuntu Ubuntu Linux 5.0 4 i386
 + Ubuntu Ubuntu Linux 5.0 4 amd64
 Linux kernel 2.6.9
Linux kernel 2.6.8 rc3
Linux kernel 2.6.8 rc2
Linux kernel 2.6.8 rc1
+ Ubuntu Ubuntu Linux 4.1 ppc
 + Ubuntu Ubuntu Linux 4.1 ia64
 + Ubuntu Ubuntu Linux 4.1 ia32
 Linux kernel 2.6.8
Linux kernel 2.6.7 rc1
Linux kernel 2.6.7
Linux kernel 2.6.6 rc1
Linux kernel 2.6.6
Linux kernel 2.6.5
Linux kernel 2.6.4
Linux kernel 2.6.3
Linux kernel 2.6.2
Linux kernel 2.6.1 -rc2
Linux kernel 2.6.1 -rc1
Linux kernel 2.6.1
Linux kernel 2.6 .10
Linux kernel 2.6 -test9-CVS
Linux kernel 2.6 -test9
Linux kernel 2.6 -test8
Linux kernel 2.6 -test7
Linux kernel 2.6 -test6
Linux kernel 2.6 -test5
Linux kernel 2.6 -test4
Linux kernel 2.6 -test3
Linux kernel 2.6 -test2
Linux kernel 2.6 -test11
Linux kernel 2.6 -test10
Linux kernel 2.6 -test1
Linux kernel 2.6
Linux kernel 2.6.15.5
Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
Avaya S8710 CM 3.1
Avaya S8700 CM 3.1
Avaya S8500 CM 3.1
Avaya S8300 CM 3.1
Not Vulnerable: Linux kernel 2.6.17 .8

Discussion

Linux Kernel NFS and EXT3 Combination Remote Denial of Service Vulnerability

The Linux kernel is susceptible to a remote denial-of-service vulnerability because the EXT3 filesystem code fails to properly handle unexpected conditions.

Remote attackers may trigger this issue by sending crafted UDP datagrams to affected computers that are configured as NFS servers, causing filesystem errors. Depending on the mount-time options of affected filesystems, this may result in remounting filesystems as read-only or cause a kernel panic.

Linux kernel versions 2.6.14.4, 2.6.17.6, and 2.6.17.7 are vulnerable to this issue; other versions in the 2.6 series are also likely affected.

Exploit / POC

Linux Kernel NFS and EXT3 Combination Remote Denial of Service Vulnerability

The following code is sufficient to trigger this issue:

Solution / Fix

Linux Kernel NFS and EXT3 Combination Remote Denial of Service Vulnerability

Solution:
The vendor has released version 2.6.17.8 to address this issue.

Please see the references for more information.


Linux kernel 2.6.10

Linux kernel 2.6.3

References

Linux Kernel NFS and EXT3 Combination Remote Denial of Service Vulnerability

References:

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