KVM Block Device Backend Local Security Bypass Vulnerability

BID:28001

Info

KVM Block Device Backend Local Security Bypass Vulnerability

Bugtraq ID: 28001
Class: Access Validation Error
CVE: CVE-2008-0928
Remote: No
Local: Yes
Published: Feb 26 2008 12:00AM
Updated: Apr 16 2015 05:49PM
Credit: Ian Jackson is credited with discovering this issue.
Vulnerable: SuSE SUSE Linux Enterprise Server 11
+ Linux kernel 2.6.5
SuSE SUSE Linux Enterprise Server 10
SuSE openSUSE 10.3
S.u.S.E. openSUSE 11.1
S.u.S.E. openSUSE 11.0
Red Hat Fedora 7
Qumranet KVM 36
Pardus Linux 2008 0
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

KVM Block Device Backend Local Security Bypass Vulnerability

KVM (Kernel-based Virtual Machine) is prone to a local security-bypass vulnerability because it fails to validate user-supplied input.

Local attackers can leverage this issue to access memory outside of the virtualization jail. This could allow attackers to write to arbitrary host memory locations or crash the underlying KVM host. Other attacks may also be possible.

Exploit / POC

KVM Block Device Backend Local Security Bypass Vulnerability

Currently we are not aware of any working 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

KVM Block Device Backend Local Security Bypass Vulnerability

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


Debian Linux 5.0 ia-32

Debian Linux 4.0 amd64

Debian Linux 4.0 ia-32

Debian Linux 5.0 amd64

Debian Linux 5.0 powerpc

Debian Linux 5.0 sparc

References

KVM Block Device Backend Local Security Bypass Vulnerability

References:

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