Linux Kernel FUSE 'iov_length()' Local Privilege-Escalation Vulnerability

Bugtraq ID:	46769
Class:	Boundary Condition Error
CVE:	CVE-2010-4650
Remote:	No
Local:	Yes
Published:	Mar 07 2011 12:00AM
Updated:	Mar 19 2015 08:31AM
Credit:	Miklos Szeredi
Vulnerable:	Ubuntu Ubuntu Linux 10.10 powerpc Ubuntu Ubuntu Linux 10.10 i386 Ubuntu Ubuntu Linux 10.10 ARM Ubuntu Ubuntu Linux 10.10 amd64 SuSE SUSE Linux Enterprise Server 11 SP1 + Linux kernel 2.6.5 SuSE SUSE Linux Enterprise High Availability Extension 11 SP1 SuSE Suse Linux Enterprise Desktop 11 SP1 + Linux kernel 2.6.5 S.u.S.E. openSUSE 11.4 S.u.S.E. openSUSE 11.3 S.u.S.E. openSUSE 11.2 Linux kernel 2.6.32 Linux kernel 2.6.31 5 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31 13 Linux kernel 2.6.31 .2 Linux kernel 2.6.31 .11 Linux kernel 2.6.31 -rc7 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31 -rc6 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31 -rc3 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31 -rc1 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31 Linux kernel 2.6.30 .10 Linux kernel 2.6.30 .1 Linux kernel 2.6.30 -rc6 Linux kernel 2.6.30 -rc5 Linux kernel 2.6.30 -rc3 Linux kernel 2.6.30 -rc2 Linux kernel 2.6.30 -rc1 Linux kernel 2.6.30 Linux kernel 2.6.29 .4 Linux kernel 2.6.29 .1 Linux kernel 2.6.29 Linux kernel 2.6.32.22 Linux kernel 2.6.32.2 Linux kernel 2.6.32.18 Linux kernel 2.6.32.17 Linux kernel 2.6.32.16 Linux kernel 2.6.32.15 Linux kernel 2.6.32.14 Linux kernel 2.6.32.13 Linux kernel 2.6.32.12 Linux kernel 2.6.32.11 Linux kernel 2.6.32.10 Linux kernel 2.6.32.1 Linux kernel 2.6.32-rc8 Linux kernel 2.6.32-rc7 Linux kernel 2.6.32-rc5 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.32-rc4 Linux kernel 2.6.32-rc3 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.32-rc2 Linux kernel 2.6.32-rc1 Linux kernel 2.6.31.6 Linux kernel 2.6.31.4 Linux kernel 2.6.31.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31-rc9 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31-rc8 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.31-rc5-git3 Linux kernel 2.6.31-rc4 Linux kernel 2.6.31-rc2 Linux kernel 2.6.31-git11 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.30.5 Linux kernel 2.6.30.4 Linux kernel 2.6.30.3
Not Vulnerable:	Linux kernel 2.6.32.28

Linux Kernel FUSE 'iov_length()' Local Privilege-Escalation Vulnerability

The Linux Kernel is prone to a local privilege-escalation vulnerability because it fails to properly validate user-supplied input.

Local attackers can exploit this issue to run arbitrary code with elevated privileges. Failed exploit attempts may crash the affected kernel, denying service to legitimate users.

Linux Kernel FUSE 'iov_length()' Local Privilege-Escalation Vulnerability

References:

• Linux kernel Homepage (kernel.org)
  
• Verify ioctl retries (Linux)