BID:43816

Linux Kernel TIOCGICOUNT 'drivers/char/nozomi.c' Information Disclosure Vulnerability

Info

Linux Kernel TIOCGICOUNT 'drivers/char/nozomi.c' Information Disclosure Vulnerability

Bugtraq ID:	43816
Class:	Design Error
CVE:
Remote:	No
Local:	Yes
Published:	Oct 06 2010 12:00AM
Updated:	Jan 25 2014 06:58AM
Credit:	Dan Rosenberg
Vulnerable:	Linux kernel 2.6.35 Linux kernel 2.6.34 Linux kernel 2.6.33 .1 Linux kernel 2.6.33 Linux kernel 2.6.32 .9 Linux kernel 2.6.32 Linux kernel 2.6.31 5 Linux kernel 2.6.31 13 Linux kernel 2.6.31 .2 Linux kernel 2.6.31 .11 Linux kernel 2.6.31 -rc7 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 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 -git8 Linux kernel 2.6.29 -git14 Linux kernel 2.6.29 -git1 Linux kernel 2.6.29 Linux kernel 2.6.28 .9 Linux kernel 2.6.28 .8 Linux kernel 2.6.28 .6 Linux kernel 2.6.28 .5 Linux kernel 2.6.28 .3 Linux kernel 2.6.28 .2 Linux kernel 2.6.28 .1 Linux kernel 2.6.28 -rc7 Linux kernel 2.6.28 -rc5 Linux kernel 2.6.28 -rc1 Linux kernel 2.6.28 -git7 Linux kernel 2.6.28 Linux kernel 2.6.27 6 Linux kernel 2.6.27 3 Linux kernel 2.6.27 12 Linux kernel 2.6.27 .8 Linux kernel 2.6.27 .5 Linux kernel 2.6.27 .5 Linux kernel 2.6.27 .46 Linux kernel 2.6.27 .24 Linux kernel 2.6.27 .14 Linux kernel 2.6.27 .13 Linux kernel 2.6.27 .12 Linux kernel 2.6.27 -rc8-git5 Linux kernel 2.6.27 -rc8 Linux kernel 2.6.27 -rc6-git6 Linux kernel 2.6.27 -rc6 Linux kernel 2.6.27 -rc5 Linux kernel 2.6.27 -rc4 Linux kernel 2.6.27 -rc2 Linux kernel 2.6.27 -rc1 Linux kernel 2.6.27 Linux kernel 2.6.26 .6 Linux kernel 2.6.26 .4 Linux kernel 2.6.26 .3 Linux kernel 2.6.25 .6 Linux kernel 2.6.25 .5 Linux kernel 2.6.25 Linux kernel 2.6.3 rc4 Linux kernel 2.6.3 rc3 Linux kernel 2.6.3 rc2 Linux kernel 2.6.3 rc1 Linux kernel 2.6.3 Linux kernel 2.6.3 Linux kernel 2.6.36-rc4 Linux kernel 2.6.36-rc1 Linux kernel 2.6.35.5 Linux kernel 2.6.35.4 Linux kernel 2.6.35.1 Linux kernel 2.6.35-rc6 Linux kernel 2.6.35-rc5-git5 Linux kernel 2.6.35-rc5 Linux kernel 2.6.35-rc4 Linux kernel 2.6.35-rc1 Linux kernel 2.6.34.2 Linux kernel 2.6.34-rc6 Linux kernel 2.6.34-rc5 Linux kernel 2.6.34-rc4 Linux kernel 2.6.34-rc2-git1 Linux kernel 2.6.34-rc2 Linux kernel 2.6.34-rc1 Linux kernel 2.6.33.7 Linux kernel 2.6.33-rc8 Linux kernel 2.6.33-rc7 Linux kernel 2.6.33-rc7 Linux kernel 2.6.33-rc6-git5 Linux kernel 2.6.33-rc6 Linux kernel 2.6.33-rc5 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.33-rc4 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.33-rc1 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.32.8 Linux kernel 2.6.32.7 Linux kernel 2.6.32.4 Linux kernel 2.6.32.3 Linux kernel 2.6.32.22 Linux kernel 2.6.32.17 Linux kernel 2.6.32.12 Linux kernel 2.6.32.11 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 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 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 Linux kernel 2.6.29-rc2-git1 Linux kernel 2.6.29-rc2 Linux kernel 2.6.29-rc1 Linux kernel 2.6.28.4 Linux kernel 2.6.28.10 Linux kernel 2.6.28-rc7 Linux kernel 2.6.28-rc6 Linux kernel 2.6.28-rc5 Linux kernel 2.6.28-rc4 Linux kernel 2.6.27.54 Linux kernel 2.6.27.51 Linux kernel 2.6.27.49 Linux kernel 2.6.27-git3 Linux kernel 2.6.26.1 Linux kernel 2.6.26-rc5-git1 Linux kernel 2.6.25.4 Linux kernel 2.6.25.3 Linux kernel 2.6.25.2

Not Vulnerable:	Linux kernel 2.6.36-rc5

Discussion

Linux Kernel TIOCGICOUNT 'drivers/char/nozomi.c' Information Disclosure Vulnerability

The Linux kernel is prone to an information-disclosure vulnerability.

Successful exploits may allow attackers to obtain potentially sensitive information from the stack that may aid in other attacks.

Linux kernel 2.6.19 up to but not including 2.6.36-rc5 are vulnerable.

Exploit / POC

Linux Kernel TIOCGICOUNT 'drivers/char/nozomi.c' Information Disclosure Vulnerability

Attackers can use readily available tools to exploit this issue.

Solution / Fix

Linux Kernel TIOCGICOUNT 'drivers/char/nozomi.c' Information Disclosure Vulnerability

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

References

Linux Kernel TIOCGICOUNT 'drivers/char/nozomi.c' Information Disclosure Vulnerability

References:

CVE request: multiple kernel stack memory disclosures (Dan Rosenberg)
Linux kernel Homepage (kernel.org)