Linux Kernel VFat Compat IOCTLS Local Denial of Service Vulnerability
BID:24134
Info
Linux Kernel VFat Compat IOCTLS Local Denial of Service Vulnerability
| Bugtraq ID: | 24134 |
| Class: | Design Error |
| CVE: |
CVE-2007-2878 |
| Remote: | No |
| Local: | Yes |
| Published: | May 24 2007 12:00AM |
| Updated: | Jan 29 2008 07:18PM |
| Credit: | This issue was reported by Bart Oldeman. |
| Vulnerable: |
Ubuntu Ubuntu Linux 7.04 sparc Ubuntu Ubuntu Linux 7.04 powerpc Ubuntu Ubuntu Linux 7.04 i386 Ubuntu Ubuntu Linux 7.04 amd64 Ubuntu Ubuntu Linux 6.10 sparc Ubuntu Ubuntu Linux 6.10 powerpc Ubuntu Ubuntu Linux 6.10 i386 Ubuntu Ubuntu Linux 6.10 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 Redhat Enterprise Linux WS 4 Redhat Enterprise Linux ES 4 Redhat Enterprise Linux Desktop 5 client Redhat Enterprise Linux AS 4 Redhat Enterprise Linux 5 Server Redhat Desktop 4.0 Linux kernel 2.6.21 .1 Linux kernel 2.6.21 -git8 Linux kernel 2.6.20 .9 Linux kernel 2.6.20 .8 Linux kernel 2.6.20 .5 Linux kernel 2.6.20 .4 Linux kernel 2.6.20 .1 Linux kernel 2.6.20 Linux kernel 2.6.20 Linux kernel 2.6.19 .2 Linux kernel 2.6.19 .1 Linux kernel 2.6.19 .1 Linux kernel 2.6.19 -rc4 Linux kernel 2.6.19 -rc3 Linux kernel 2.6.19 -rc2 Linux kernel 2.6.19 -rc1 Linux kernel 2.6.19 Linux kernel 2.6.18 .4 Linux kernel 2.6.18 .3 Linux kernel 2.6.18 .1 Linux kernel 2.6.18 Linux kernel 2.6.17 .9 Linux kernel 2.6.17 .8 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 .2 Linux kernel 2.6.17 .14 Linux kernel 2.6.17 .13 Linux kernel 2.6.17 .12 Linux kernel 2.6.17 .11 Linux kernel 2.6.17 .10 Linux kernel 2.6.17 .1 Linux kernel 2.6.17 -rc5 Linux kernel 2.6.17 Linux kernel 2.6.17 Linux kernel 2.6.17 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 2.6.16 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 2.6.15 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 2.6.14 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 2.6.13 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 .22 Linux kernel 2.6.12 .2 Linux kernel 2.6.12 .12 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 2.6.12 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 .4 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 2.6.11 Linux kernel 2.6.10 rc2 Linux kernel 2.6.10 Linux kernel 2.6.10 Linux kernel 2.6.9 Linux kernel 2.6.8 rc3 Linux kernel 2.6.8 rc2 Linux kernel 2.6.8 rc1 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 2.6.8.1 Linux kernel 2.6.21-RC6 Linux kernel 2.6.21-RC5 Linux kernel 2.6.21-RC4 Linux kernel 2.6.21-RC3 Linux kernel 2.6.20.3 Linux kernel 2.6.20.2 Linux kernel 2.6.20.11 Linux kernel 2.6.20-rc2 Linux kernel 2.6.20-2 Linux kernel 2.6.18 Linux kernel 2.6.15.5 Linux kernel 2.6.15.11 Linux kernel 2.6.11.4 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 arm Debian Linux 4.0 amd64 Debian Linux 4.0 alpha Debian Linux 4.0 Avaya SES 3.1.2 Avaya SES 3.1.1 Avaya SES 4.0 Avaya Messaging Storage Server MSS 3.0 Avaya Message Networking MN 3.1 Avaya Intuity AUDIX LX 2.0 Avaya Communication Manager 4.0 Avaya Communication Manager 3.1 Avaya Communication Manager 3.0 Avaya CCS 3.1.2 Avaya CCS 3.1.1 Avaya CCS 4.0 Avaya Aura Application Enablement Services 4.0.1 |
| Not Vulnerable: |
Linux kernel 2.6.21 .2 |
Discussion
Linux Kernel VFat Compat IOCTLS Local Denial of Service Vulnerability
The Linux Kernel is prone to a denial-of-service vulnerability.
A local attacker can exploit this issue to cause the kernel to crash, effectively denying service to legitimate users.
The Linux Kernel is prone to a denial-of-service vulnerability.
A local attacker can exploit this issue to cause the kernel to crash, effectively denying service to legitimate users.
Exploit / POC
Linux Kernel VFat Compat IOCTLS Local Denial of Service Vulnerability
The following exploit demonstrates this issue:
The following exploit demonstrates this issue:
Solution / Fix
Linux Kernel VFat Compat IOCTLS Local Denial of Service Vulnerability
Solution:
This issue is addressed in kernel version 2.6.21.2.
Linux kernel 2.6.20.2
Linux kernel 2.6.21-RC3
Linux kernel 2.6.11.4
Linux kernel 2.6.20-rc2
Linux kernel 2.6.20-2
Linux kernel 2.6.21-RC4
Linux kernel 2.6.20.3
Linux kernel 2.6.8.1
Linux kernel 2.6 -test6
Linux kernel 2.6 -test4
Linux kernel 2.6 -test2
Linux kernel 2.6 -test9-CVS
Linux kernel 2.6 -test7
Linux kernel 2.6 -test9
Linux kernel 2.6 -test10
Linux kernel 2.6.1 -rc2
Linux kernel 2.6.1
Linux kernel 2.6.10 rc2
Linux kernel 2.6.10
Linux kernel 2.6.11
Linux kernel 2.6.11 -rc3
Linux kernel 2.6.11 .11
Linux kernel 2.6.12 .4
Linux kernel 2.6.12 .1
Linux kernel 2.6.12 -rc4
Linux kernel 2.6.12 .12
Linux kernel 2.6.12 .22
Linux kernel 2.6.12 .2
Linux kernel 2.6.13 -rc4
Linux kernel 2.6.13
Linux kernel 2.6.14 .4
Linux kernel 2.6.15 -rc6
Linux kernel 2.6.15
Linux kernel 2.6.15
Linux kernel 2.6.15 -rc1
Linux kernel 2.6.15 -rc3
Linux kernel 2.6.15 .4
Linux kernel 2.6.15 -rc4
Linux kernel 2.6.16 .3
Linux kernel 2.6.16 .9
Linux kernel 2.6.16 .5
Linux kernel 2.6.16 .1
Linux kernel 2.6.16 .23
Linux kernel 2.6.16 -rc1
Linux kernel 2.6.16
Linux kernel 2.6.17
Linux kernel 2.6.17 .5
Linux kernel 2.6.17 .1
Linux kernel 2.6.17 .7
Linux kernel 2.6.17 .13
Linux kernel 2.6.17 .10
Linux kernel 2.6.17 .9
Linux kernel 2.6.17 -rc5
Linux kernel 2.6.18 .3
Linux kernel 2.6.19 -rc2
Linux kernel 2.6.2
Linux kernel 2.6.20 .4
Linux kernel 2.6.20
Linux kernel 2.6.21 -git8
Linux kernel 2.6.4
Linux kernel 2.6.6 rc1
Linux kernel 2.6.7
Linux kernel 2.6.8 rc2
Linux kernel 2.6.8 rc1
Solution:
This issue is addressed in kernel version 2.6.21.2.
Linux kernel 2.6.20.2
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.21-RC3
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.11.4
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.20-rc2
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.20-2
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.21-RC4
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.20.3
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.8.1
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6 -test6
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6 -test4
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6 -test2
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6 -test9-CVS
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6 -test7
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6 -test9
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6 -test10
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.1 -rc2
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.1
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.10 rc2
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.10
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.11
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.11 -rc3
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.11 .11
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.12 .4
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.12 .1
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.12 -rc4
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.12 .12
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.12 .22
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.12 .2
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.13 -rc4
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.13
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.14 .4
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.15 -rc6
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.15
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.15
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.15 -rc1
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.15 -rc3
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.15 .4
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.15 -rc4
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.16 .3
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.16 .9
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.16 .5
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.16 .1
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.16 .23
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.16 -rc1
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.16
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.17
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.17 .5
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.17 .1
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.17 .7
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.17 .13
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.17 .10
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.17 .9
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.17 -rc5
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.18 .3
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.19 -rc2
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.2
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.20 .4
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.20
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.21 -git8
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.4
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.6 rc1
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.7
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.8 rc2
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
Linux kernel 2.6.8 rc1
-
Linux linux-2.6.21.2.tar.gz
http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.2.tar.gz
References
Linux Kernel VFat Compat IOCTLS Local Denial of Service Vulnerability
References:
References:
- Linux 2.6.21.2 Changelog (Linux Kernel)
- Linux Kernel Homepage (Linux)
- kernel security update (RHSA-2007-0939) (Avaya)
- RHSA-2007:0705-2 kernel security update (Red Hat)
- RHSA-2007:0939-10 kernel security update (Red Hat)