Linux Kernel FS/Buffer.C Local Information Disclosure Vulnerability

BID:21522

Info

Linux Kernel FS/Buffer.C Local Information Disclosure Vulnerability

Bugtraq ID: 21522
Class: Design Error
CVE: CVE-2006-4813
Remote: No
Local: Yes
Published: Sep 21 2006 12:00AM
Updated: Mar 19 2015 09:01AM
Credit: This issue was discovered by Dmitriy Monakhov.
Vulnerable: Ubuntu Ubuntu Linux 5.10 sparc
Ubuntu Ubuntu Linux 5.10 powerpc
Ubuntu Ubuntu Linux 5.10 i386
Ubuntu Ubuntu Linux 5.10 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
SuSE SUSE Linux Enterprise Server 9
SuSE SUSE Linux Enterprise Server 10
SuSE SUSE Linux Enterprise Desktop 10
S.u.S.E. Open-Enterprise-Server 0
S.u.S.E. Novell Linux POS 9
S.u.S.E. Novell Linux Desktop 9.0
S.u.S.E. Linux Professional 10.0 OSS
S.u.S.E. Linux Professional 9.3 x86_64
S.u.S.E. Linux Professional 9.3
S.u.S.E. Linux Professional 10.1
S.u.S.E. Linux Personal 10.0 OSS
S.u.S.E. Linux Personal 9.3 x86_64
S.u.S.E. Linux Personal 9.3
S.u.S.E. Linux Personal 10.1
RedHat Enterprise Linux WS 4
RedHat Enterprise Linux ES 4
RedHat Desktop 4.0
Red Hat Enterprise Linux AS 4
Mandriva Linux Mandrake 2006.0 x86_64
Mandriva Linux Mandrake 2006.0
MandrakeSoft Multi Network Firewall 2.0
MandrakeSoft Corporate Server 4.0 x86_64
MandrakeSoft Corporate Server 3.0 x86_64
MandrakeSoft Corporate Server 3.0
MandrakeSoft Corporate Server 4.0
Linux kernel 2.6.16 .9
Linux kernel 2.6.14
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 2.6.12 .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 2.6.12 -rc5
Linux kernel 2.6.12 -rc4
Linux kernel 2.6.12 -rc1
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
+ Red Hat Fedora Core4
 Linux kernel 2.6.10 rc2
Linux kernel 2.6.10
+ Red Hat Fedora Core3
 + Red Hat Fedora Core2
 + Trustix Secure Linux 3.0
+ Ubuntu Ubuntu Linux 5.0 4 powerpc
 + Ubuntu Ubuntu Linux 5.0 4 i386
 + Ubuntu Ubuntu Linux 5.0 4 amd64
 Linux kernel 2.6.9
Linux kernel 2.6.8 rc3
Linux kernel 2.6.8 rc2
Linux kernel 2.6.8 rc1
+ Ubuntu Ubuntu Linux 4.1 ppc
 + Ubuntu Ubuntu Linux 4.1 ia64
 + Ubuntu Ubuntu Linux 4.1 ia32
 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 2.6.18
Linux kernel 2.6.11.4
Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
Avaya SES 2.0
Avaya S8710 R2.0.1
Avaya S8710 R2.0.0
Avaya S8710 CM 3.1
Avaya S8710 CM 2.0
Avaya S8700 R2.0.1
Avaya S8700 R2.0.0
Avaya S8700 CM 3.1
Avaya S8700 CM 2.0
Avaya S8500 R2.0.1
Avaya S8500 R2.0.0
Avaya S8500 CM 3.1
Avaya S8500 CM 2.0
Avaya S8500 0
Avaya S8300 R2.0.1
Avaya S8300 R2.0.0
Avaya S8300 CM 3.1
Avaya S8300 CM 2.0
Avaya S8300 0
Avaya Messaging Storage Server MM3.0
Avaya CCS 3.0
Avaya CCS 2.0
Avaya Aura SIP Enablement Services 3.0
Avaya Aura Application Enablement Services 3.1
Not Vulnerable: Linux kernel 2.6.13

Discussion

Linux Kernel FS/Buffer.C Local Information Disclosure Vulnerability

The Linux kernel is prone to a local information-disclosure vulnerability because the kernel fails to properly clear kernel memory after certain errors.

Successfully exploiting this issue allows local attackers to gain access to potentially sensitive information contained in kernel memory, aiding them in further attacks.

Linux kernel versions prior to 2.6.13 are vulnerable to this issue.

Exploit / POC

Linux Kernel FS/Buffer.C Local Information Disclosure Vulnerability

Currently we are not aware of any 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

Linux Kernel FS/Buffer.C Local Information Disclosure Vulnerability

Solution:
The vendor has released version 2.6.13 to address this issue.

Please see the referenced advisories for more information.


Linux kernel 2.6.11.4

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 -test11

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 -rc3

Linux kernel 2.6.11 .11

Linux kernel 2.6.11 .7

Linux kernel 2.6.11

Linux kernel 2.6.11 .6

Linux kernel 2.6.12 .4

Linux kernel 2.6.12 .1

Linux kernel 2.6.12 -rc4

Linux kernel 2.6.12 .2

Linux kernel 2.6.12 -rc1

Linux kernel 2.6.12 .3

Linux kernel 2.6.13 -rc4

Linux kernel 2.6.13 -rc7

Linux kernel 2.6.16 .9

Linux kernel 2.6.2

Linux kernel 2.6.3

Linux kernel 2.6.4

Linux kernel 2.6.6 rc1

Linux kernel 2.6.6

Linux kernel 2.6.7

Linux kernel 2.6.8 rc2

Linux kernel 2.6.8 rc1

Linux kernel 2.6.9

References

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