Linux Kernel JFS xattr Namespace Rules Security Bypass Vulnerability

Bugtraq ID:	42589
Class:	Access Validation Error
CVE:	CVE-2010-2946
Remote:	No
Local:	Yes
Published:	Aug 09 2010 12:00AM
Updated:	Mar 19 2015 09:05AM
Credit:	Dave Kleikamp
Vulnerable:	Ubuntu Ubuntu Linux 9.10 sparc Ubuntu Ubuntu Linux 9.10 powerpc Ubuntu Ubuntu Linux 9.10 lpia Ubuntu Ubuntu Linux 9.10 i386 Ubuntu Ubuntu Linux 9.10 ARM Ubuntu Ubuntu Linux 9.10 amd64 Ubuntu Ubuntu Linux 9.04 sparc Ubuntu Ubuntu Linux 9.04 powerpc Ubuntu Ubuntu Linux 9.04 lpia Ubuntu Ubuntu Linux 9.04 i386 Ubuntu Ubuntu Linux 9.04 amd64 Ubuntu Ubuntu Linux 8.04 LTS sparc Ubuntu Ubuntu Linux 8.04 LTS powerpc Ubuntu Ubuntu Linux 8.04 LTS lpia Ubuntu Ubuntu Linux 8.04 LTS i386 Ubuntu Ubuntu Linux 8.04 LTS 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 Ubuntu Ubuntu Linux 10.10 powerpc Ubuntu Ubuntu Linux 10.10 i386 Ubuntu Ubuntu Linux 10.10 amd64 Ubuntu Ubuntu Linux 10.04 sparc Ubuntu Ubuntu Linux 10.04 powerpc Ubuntu Ubuntu Linux 10.04 i386 Ubuntu Ubuntu Linux 10.04 ARM Ubuntu Ubuntu Linux 10.04 amd64 SuSE SUSE Linux Enterprise Server Unsupported Extras 11 SuSE SUSE Linux Enterprise Server 9 SuSE SUSE Linux Enterprise Server 11 SP1 SuSE SUSE Linux Enterprise Server 11 SuSE SUSE Linux Enterprise Server 10 SP3 SuSE SUSE Linux Enterprise SDK 10 SP3 SuSE SUSE Linux Enterprise Real Time 11 SP1 + Linux kernel 2.6.5 SuSE SUSE Linux Enterprise High Availability Extension 11 SP1 SuSE SUSE Linux Enterprise High Availability Extension 11 SuSE SUSE Linux Enterprise Desktop 11 SP1 SuSE SUSE Linux Enterprise Desktop 11 SuSE SUSE Linux Enterprise Desktop 10 SP3 S.u.S.E. openSUSE 11.2 S.u.S.E. openSUSE 11.1 S.u.S.E. Open-Enterprise-Server 0 S.u.S.E. Novell Linux POS 9 MandrakeSoft Corporate Server 4.0 x86_64 MandrakeSoft Corporate Server 4.0 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 7 Linux kernel 2.6.26 .6 Linux kernel 2.6.26 .4 Linux kernel 2.6.26 .3 Linux kernel 2.6.26 -rc6 Linux kernel 2.6.26 Linux kernel 2.6.25 19 Linux kernel 2.6.25 .9 Linux kernel 2.6.25 .8 Linux kernel 2.6.25 .7 Linux kernel 2.6.25 .6 Linux kernel 2.6.25 .5 Linux kernel 2.6.25 .15 Linux kernel 2.6.25 .13 Linux kernel 2.6.25 .12 Linux kernel 2.6.25 .11 Linux kernel 2.6.25 .10 Linux kernel 2.6.25 Linux kernel 2.6.24 .2 Linux kernel 2.6.24 .1 Linux kernel 2.6.24 -rc5 Linux kernel 2.6.24 -rc4 Linux kernel 2.6.24 -rc3 Linux kernel 2.6.24 -git13 Linux kernel 2.6.24 Linux kernel 2.6.23 .7 Linux kernel 2.6.23 .6 Linux kernel 2.6.23 .5 Linux kernel 2.6.23 .4 Linux kernel 2.6.23 .3 Linux kernel 2.6.23 .2 Linux kernel 2.6.23 -rc2 Linux kernel 2.6.23 -rc1 Linux kernel 2.6.23 Linux kernel 2.6.23 Linux kernel 2.6.22 rc6 Linux kernel 2.6.22 .8 Linux kernel 2.6.22 .7 Linux kernel 2.6.22 .6 Linux kernel 2.6.22 .5 Linux kernel 2.6.22 .4 Linux kernel 2.6.22 .3 Linux kernel 2.6.22 .2 Linux kernel 2.6.22 .17 Linux kernel 2.6.22 .16 Linux kernel 2.6.22 .15 Linux kernel 2.6.22 .14 Linux kernel 2.6.22 .13 Linux kernel 2.6.22 .12 Linux kernel 2.6.22 .11 Linux kernel 2.6.22 .1 Linux kernel 2.6.22 Linux kernel 2.6.22 Linux kernel 2.6.21 rc7 Linux kernel 2.6.21 git5 Linux kernel 2.6.21 git4 Linux kernel 2.6.21 git3 Linux kernel 2.6.21 git2 Linux kernel 2.6.21 git1 Linux kernel 2.6.21 git 7 Linux kernel 2.6.21 git 6 Linux kernel 2.6.21 4 Linux kernel 2.6.21 .7 Linux kernel 2.6.21 .6 Linux kernel 2.6.21 .3 Linux kernel 2.6.21 .2 Linux kernel 2.6.21 .1 Linux kernel 2.6.21 -git8 Linux kernel 2.6.21 Linux kernel 2.6.20 .9 Linux kernel 2.6.20 .8 Linux kernel 2.6.20 .7 Linux kernel 2.6.20 .6 Linux kernel 2.6.20 .5 Linux kernel 2.6.20 .4 Linux kernel 2.6.20 .15 Linux kernel 2.6.20 .14 Linux kernel 2.6.20 .12 Linux kernel 2.6.20 .10 Linux kernel 2.6.20 .1 Linux kernel 2.6.20 -git5 Linux kernel 2.6.20 Linux kernel 2.6.19 .4 Linux kernel 2.6.19 .3 Linux kernel 2.6.19 .2 Linux kernel 2.6.19 .1 Linux kernel 2.6.19 -rc4 Linux kernel 2.6.19 -rc3 Linux kernel 2.6.19 -rc2 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secure Linux 2.0 Linux kernel 2.6.19 -rc1 Linux kernel 2.6.19 Linux kernel 2.6.18 rc7 Linux kernel 2.6.18 rc6 Linux kernel 2.6.18 rc5 Linux kernel 2.6.18 rc4 Linux kernel 2.6.18 rc3 Linux kernel 2.6.18 rc2 Linux kernel 2.6.18 rc1 Linux kernel 2.6.18 .8 Linux kernel 2.6.18 .7 Linux kernel 2.6.18 .6 Linux kernel 2.6.18 .5 Linux kernel 2.6.18 .4 Linux kernel 2.6.18 .3 Linux kernel 2.6.18 .2 Linux kernel 2.6.18 .1 Linux kernel 2.6.17 rc6 Linux kernel 2.6.17 rc4 Linux kernel 2.6.17 rc3 Linux kernel 2.6.17 rc2 Linux kernel 2.6.17 rc1 Linux kernel 2.6.17 .9 Linux kernel 2.6.17 .8 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 2.6.16 rc6 Linux kernel 2.6.16 rc5 Linux kernel 2.6.16 rc4 Linux kernel 2.6.16 rc3 Linux kernel 2.6.16 rc2 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 .6 Linux kernel 2.6.16 .53 Linux kernel 2.6.16 .52 Linux kernel 2.6.16 .51 Linux kernel 2.6.16 .50 Linux kernel 2.6.16 .5 Linux kernel 2.6.16 .49 Linux kernel 2.6.16 .48 Linux kernel 2.6.16 .47 Linux kernel 2.6.16 .46 Linux kernel 2.6.16 .45 Linux kernel 2.6.16 .44 Linux kernel 2.6.16 .43 Linux kernel 2.6.16 .41 Linux kernel 2.6.16 .40 Linux kernel 2.6.16 .4 Linux kernel 2.6.16 .39 Linux kernel 2.6.16 .38 Linux kernel 2.6.16 .37 Linux kernel 2.6.16 .36 Linux kernel 2.6.16 .35 Linux kernel 2.6.16 .34 Linux kernel 2.6.16 .33 Linux kernel 2.6.16 .32 Linux kernel 2.6.16 .31 Linux kernel 2.6.16 .30 Linux kernel 2.6.16 .3 Linux kernel 2.6.16 .29 Linux kernel 2.6.16 .28 Linux kernel 2.6.16 .27 Linux kernel 2.6.16 .26 Linux kernel 2.6.16 .25 Linux kernel 2.6.16 .24 Linux kernel 2.6.16 .23 Linux kernel 2.6.16 .23 Linux kernel 2.6.16 .22 Linux kernel 2.6.16 .21 Linux kernel 2.6.16 .20 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 .15 Linux kernel 2.6.16 .14 Linux kernel 2.6.16 .12 Linux kernel 2.6.16 .11 Linux kernel 2.6.16 .10 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 rc7 Linux kernel 2.6.15 .7 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 .7 Linux kernel 2.6.14 .6 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 -rc5 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 rc5 Linux kernel 2.6.13 rc3 Linux kernel 2.6.13 rc2 Linux kernel 2.6.13 .5 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 rc6 Linux kernel 2.6.12 rc3 Linux kernel 2.6.12 rc2 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 rc5 Linux kernel 2.6.11 rc1 Linux kernel 2.6.11 .9 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 .3 Linux kernel 2.6.11 .2 Linux kernel 2.6.11 .12 Linux kernel 2.6.11 .11 Linux kernel 2.6.11 .10 Linux kernel 2.6.11 .1 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 rc3 Linux kernel 2.6.10 rc2 Linux kernel 2.6.10 rc1 Linux kernel 2.6.10 Linux kernel 2.6.10 Linux kernel 2.6.2 rc3 Linux kernel 2.6.2 rc2 Linux kernel 2.6.2 rc1 Linux kernel 2.6.2 Linux kernel 2.6.2 Linux kernel 2.6.1 rc3 Linux kernel 2.6.1 0 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 2.6.27.49 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 Linux kernel 2.6.25.1 Linux kernel 2.6.25-rc1 Linux kernel 2.6.24.6 Linux kernel 2.6.24-rc2 Linux kernel 2.6.24-rc1 Linux kernel 2.6.24 Rc3 Linux kernel 2.6.24 Rc2 Linux kernel 2.6.23.14 Linux kernel 2.6.23.10 Linux kernel 2.6.23.1 Linux kernel 2.6.23.1 Linux kernel 2.6.23.09 Linux kernel 2.6.23 Rc2 Linux kernel 2.6.22-rc7 Linux kernel 2.6.22-rc1 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 2.6.20.13 Linux kernel 2.6.20.11 Linux kernel 2.6.20-rc2 Linux kernel 2.6.20-2 Linux kernel 2.6.19 -rc6 Linux kernel 2.6.18.1 Linux kernel 2.6.18-8.1.8.el5 Linux kernel 2.6.18-53 Linux kernel 2.6.18 Linux kernel 2.6.16.9 Linux kernel 2.6.16.7 Linux kernel 2.6.16.19 Linux kernel 2.6.16.13 Linux kernel 2.6.16.12 Linux kernel 2.6.16.11 Linux kernel 2.6.15.5 Linux kernel 2.6.15.4 Linux kernel 2.6.15.11 Linux kernel 2.6.15-27.48 Linux kernel 2.6.14.3 Linux kernel 2.6.14.2 Linux kernel 2.6.14.1 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 2.6.12.6 Linux kernel 2.6.12.5 Linux kernel 2.6.12.4 Linux kernel 2.6.12.3 Linux kernel 2.6.12.2 Linux kernel 2.6.12.1 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 2.6.0
Not Vulnerable:	Linux kernel 2.6.27.51

Linux Kernel JFS xattr Namespace Rules Security Bypass Vulnerability

The Linux kernel is prone to a security-bypass vulnerability that affects the JFS filesystem.

Local attackers can exploit this issue to bypass certain security restrictions and perform unauthorized actions.

Linux Kernel JFS xattr Namespace Rules Security Bypass Vulnerability

Attackers can use readily available tools to exploit this issue.

Linux Kernel JFS xattr Namespace Rules Security Bypass Vulnerability

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


Ubuntu Ubuntu Linux 10.04 powerpc

• Ubuntu linux-headers-2.6.35-25_2.6.35-25.44~lucid1_all.deb
  http://security.ubuntu.com/ubuntu/pool/main/l/linux-lts-backport-maver ick/linux-headers-2.6.35-25_2.6.35-25.44~lucid1_all.deb

Linux Kernel JFS xattr Namespace Rules Security Bypass Vulnerability

References:

• ChangeLog-2.6.27.51 (kernel.org)
  
• CVE request - kernel: jfs: don't allow os2 xattr namespace overlap with others (Eugene Teo)
  
• Linux kernel Homepage (kernel.org)
  
• USN-1000-1: Linux kernel vulnerabilities (Ubuntu)