Linux Kernel NFS Client Denial of Service Vulnerability

BID:16922

Info

Linux Kernel NFS Client Denial of Service Vulnerability

Bugtraq ID: 16922
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2006-0555
Remote: No
Local: Yes
Published: Mar 02 2006 12:00AM
Updated: Jan 18 2007 02:40AM
Credit: Announced in the kernel changelog.
Vulnerable: 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 4.1 ppc
Ubuntu Ubuntu Linux 4.1 ia64
Ubuntu Ubuntu Linux 4.1 ia32
SuSE SUSE Linux Enterprise Server 8
+ Linux kernel 2.4.21
+ Linux kernel 2.4.19
SuSE Linux Enterprise Server 9
SuSE Linux Desktop 1.0
S.u.S.E. UnitedLinux 1.0
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 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 Enterprise Server for S/390 9.0
S.u.S.E. Linux Enterprise Server for S/390
Redhat Fedora Core4
Redhat Enterprise Linux WS 4
Redhat Enterprise Linux ES 4
Redhat Enterprise Linux AS 4
Redhat Desktop 4.0
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 2.6.15 .3
Linux kernel 2.6.15 .2
Linux kernel 2.6.15 .1
Linux kernel 2.6.15 -rc3
Linux kernel 2.6.15 -rc2
Linux kernel 2.6.15 -rc1
Linux kernel 2.6.15
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 R2.0.1
Avaya S8710 R2.0.0
Avaya S8710 CM 3.1
Avaya S8700 R2.0.1
Avaya S8700 R2.0.0
Avaya S8700 CM 3.1
Avaya S8500 R2.0.1
Avaya S8500 R2.0.0
Avaya S8500 CM 3.1
Avaya S8300 R2.0.1
Avaya S8300 R2.0.0
Avaya S8300 CM 3.1
Not Vulnerable: Linux kernel 2.6.15.5

Discussion

Linux Kernel NFS Client Denial of Service Vulnerability

Linux kernel NFS client is prone to a denial-of-service vulnerability. An unprivileged local user can panic the NFS client and cause it to fail.

This issue was addressed in Linux kernel 2.6.15.5; earlier versions are vulnerable.

Exploit / POC

Linux Kernel NFS Client Denial of Service Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected]

Solution / Fix

Linux Kernel NFS Client Denial of Service Vulnerability

Solution:
Linux kernel 2.6.15.5 has been released to address this and other issues.

Please see the referenced advisories for details on obtaining and applying fixes.


Linux kernel 2.6.15

Linux kernel 2.6.15 -rc1

Linux kernel 2.6.15 -rc3

Linux kernel 2.6.15 .2

Linux kernel 2.6.15 .1

Linux kernel 2.6.15 .3

Linux kernel 2.6.15 -rc2

References

Linux Kernel NFS Client Denial of Service Vulnerability

References:

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