Linux Kernel Terminal Locking Race Condition Vulnerability

BID:11492

Info

Linux Kernel Terminal Locking Race Condition Vulnerability

Bugtraq ID: 11492
Class: Race Condition Error
CVE: CVE-2004-0814
Remote: Yes
Local: No
Published: Oct 21 2004 12:00AM
Updated: Jul 12 2009 08:06AM
Credit: This issue was announced by Alan Cox.
Vulnerable: Ubuntu Ubuntu Linux 4.1 ppc
Ubuntu Ubuntu Linux 4.1 ia64
Ubuntu Ubuntu Linux 4.1 ia32
Redhat Linux 9.0 i386
Redhat Linux 7.3 i386
Redhat Fedora Core1
Mandriva Linux Mandrake 10.1 x86_64
Mandriva Linux Mandrake 10.1
Mandriva Linux Mandrake 10.0 AMD64
Mandriva Linux Mandrake 10.0
Mandriva Linux Mandrake 9.2 amd64
Mandriva Linux Mandrake 9.2
MandrakeSoft Multi Network Firewall 2.0
MandrakeSoft Corporate Server 3.0
MandrakeSoft Corporate Server 2.1 x86_64
MandrakeSoft Corporate Server 2.1
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 2.6.7 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 -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 2.4.27 -pre5
Linux kernel 2.4.27 -pre4
Linux kernel 2.4.27 -pre3
Linux kernel 2.4.27 -pre2
Linux kernel 2.4.27 -pre1
Linux kernel 2.4.26
Linux kernel 2.4.25
Linux kernel 2.4.24 -ow1
Linux kernel 2.4.24
Linux kernel 2.4.23 -pre9
Linux kernel 2.4.23 -ow2
Linux kernel 2.4.23
Linux kernel 2.4.22
+ Devil-Linux Devil-Linux 1.0.5
+ Devil-Linux Devil-Linux 1.0.4
+ Mandriva Linux Mandrake 9.2 amd64
 + Mandriva Linux Mandrake 9.2
+ Redhat Fedora Core1
 + Slackware Linux 9.1
Linux kernel 2.4.21 pre7
Linux kernel 2.4.21 pre4
+ Mandriva Linux Mandrake 9.1 ppc
 + Mandriva Linux Mandrake 9.1
Linux kernel 2.4.21 pre1
Linux kernel 2.4.21
+ Mandriva Linux Mandrake 9.1 ppc
 + Mandriva Linux Mandrake 9.1
+ Redhat Desktop 3.0
+ Redhat Enterprise Linux AS 3
 + Redhat Enterprise Linux ES 3
 + Redhat Enterprise Linux WS 3
 + S.u.S.E. Linux Personal 9.0 x86_64
 + S.u.S.E. Linux Personal 9.0
+ SuSE SUSE Linux Enterprise Server 8
 Linux kernel 2.4.20
+ CRUX CRUX Linux 1.0
+ Gentoo Linux 1.4
+ Gentoo Linux 1.2
+ Redhat Linux 9.0 i386
 + Slackware Linux 9.0
+ WOLK WOLK 4.4 s
 Linux kernel 2.4.19 -pre6
Linux kernel 2.4.19 -pre5
Linux kernel 2.4.19 -pre4
Linux kernel 2.4.19 -pre3
Linux kernel 2.4.19 -pre2
Linux kernel 2.4.19 -pre1
Linux kernel 2.4.19
Linux kernel 2.4.18 pre-8
Linux kernel 2.4.18 pre-7
Linux kernel 2.4.18 pre-6
Linux kernel 2.4.18 pre-5
Linux kernel 2.4.18 pre-4
Linux kernel 2.4.18 pre-3
Linux kernel 2.4.18 pre-2
Linux kernel 2.4.18 pre-1
Linux kernel 2.4.18 x86
Linux kernel 2.4.18
Linux kernel 2.4.17
Linux kernel 2.4.16
Linux kernel 2.4.15
Linux kernel 2.4.14
Linux kernel 2.4.13
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Workstation 3.1.1
Linux kernel 2.4.12
Linux kernel 2.4.11
Linux kernel 2.4.10
+ SuSE Linux 7.3
Linux kernel 2.4.9
Linux kernel 2.4.8
Linux kernel 2.4.7
+ Redhat Linux 7.2
+ SuSE Linux 7.2
+ SuSE Linux 7.1
Linux kernel 2.4.6
Linux kernel 2.4.5
+ Slackware Linux 8.0
Linux kernel 2.4.4
Linux kernel 2.4.3
+ Mandriva Linux Mandrake 8.0 ppc
 + Mandriva Linux Mandrake 8.0
Linux kernel 2.4.2
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1
+ Redhat Linux 7.1 i386
 + Redhat Linux 7.1 alpha
 Linux kernel 2.4.1
Linux kernel 2.4 .0-test9
Linux kernel 2.4 .0-test8
Linux kernel 2.4 .0-test7
Linux kernel 2.4 .0-test6
Linux kernel 2.4 .0-test5
Linux kernel 2.4 .0-test4
Linux kernel 2.4 .0-test3
Linux kernel 2.4 .0-test2
Linux kernel 2.4 .0-test12
Linux kernel 2.4 .0-test11
Linux kernel 2.4 .0-test10
Linux kernel 2.4 .0-test1
Linux kernel 2.4
Linux kernel 2.2.25
Linux kernel 2.2.24
Linux kernel 2.2.23
Linux kernel 2.2.22
Linux kernel 2.2.21
Linux kernel 2.2.20
+ Mandriva Linux Mandrake 8.2 ppc
 + Mandriva Linux Mandrake 8.2
Linux kernel 2.2.19
Linux kernel 2.2.18
+ Caldera OpenLinux 2.4
+ Debian Linux 2.2 sparc
 + Debian Linux 2.2 powerpc
 + Debian Linux 2.2 arm
 + Debian Linux 2.2 alpha
 + Debian Linux 2.2 68k
 + Debian Linux 2.2
+ Mandriva Linux Mandrake 7.2
+ Mandriva Linux Mandrake 7.1
+ Mandriva Linux Mandrake 7.0
+ Mandriva Linux Mandrake 6.1
+ Mandriva Linux Mandrake 6.0
+ Redhat Linux 7.0 sparc
 + Redhat Linux 7.0 i386
 + Redhat Linux 7.0 alpha
 + Redhat Linux 6.2 sparc
 + Redhat Linux 6.2 i386
 + Redhat Linux 6.2 alpha
 + Redhat Linux 6.1 sparc
 + Redhat Linux 6.1 i386
 + Redhat Linux 6.1 alpha
 + Redhat Linux 6.0 sparc
 + Redhat Linux 6.0 alpha
 + Redhat Linux 6.0
+ SCO eDesktop 2.4
+ SCO eServer 2.3.1
+ Slackware Linux 7.1
+ Slackware Linux 7.0
+ Slackware Linux 4.0
+ SuSE Linux 7.0
+ SuSE Linux 6.4 ppc
 + SuSE Linux 6.4 alpha
 + SuSE Linux 6.4
+ SuSE Linux 6.3 ppc
 + SuSE Linux 6.3 alpha
 + SuSE Linux 6.3
+ SuSE Linux 6.1 alpha
 + SuSE Linux 6.1
+ SuSE Linux 6.0
+ Wirex Immunix OS 7.0 -Beta
 + Wirex Immunix OS 7.0
+ Wirex Immunix OS 6.2
Linux kernel 2.2.17
+ Mandriva Linux Mandrake 7.2
+ SuSE Linux 7.0
+ Trustix Secure Linux 1.2
Linux kernel 2.2.16 pre6
Linux kernel 2.2.16
+ Redhat Linux 7.0
+ Sun Cobalt Qube 3
+ Sun Cobalt RaQ XTR
+ Trustix Secure Linux 1.1
Linux kernel 2.2.15 pre20
Linux kernel 2.2.15 pre16
Linux kernel 2.2.15
+ MandrakeSoft Corporate Server 1.0.1
+ Mandriva Linux Mandrake 7.1
Linux kernel 2.2.14
+ Redhat Linux 6.2
 + SCO eDesktop 2.4
+ SCO eServer 2.3.1
+ Sun Cobalt RaQ 4
Linux kernel 2.2.13
+ SuSE Linux 6.4
+ SuSE Linux 6.3
Linux kernel 2.2.12
Linux kernel 2.2.11
Linux kernel 2.2.10
+ Caldera OpenLinux 2.3
Linux kernel 2.2.9
Linux kernel 2.2.8
Linux kernel 2.2.7
Linux kernel 2.2.3
Linux kernel 2.2.2
Linux kernel 2.2.1
Linux kernel 2.2
Avaya S8710 R2.0.1
Avaya S8710 R2.0.0
Avaya S8700 R2.0.1
Avaya S8700 R2.0.0
Avaya S8500 R2.0.1
Avaya S8500 R2.0.0
Avaya S8300 R2.0.1
Avaya S8300 R2.0.0
Avaya Modular Messaging (MSS) 2.0
Avaya Modular Messaging (MSS) 1.1
Avaya MN100
Avaya Intuity LX
Avaya Integrated Management
Avaya CVLAN
Avaya Converged Communications Server 2.0
Not Vulnerable: Linux kernel 2.6.9

Discussion

Linux Kernel Terminal Locking Race Condition Vulnerability

A race condition vulnerability exists in the Linux Kernel terminal subsystem. This issue is related to terminal locking and is exposed when a remote user connects to the computer through a PPP dialup port.

Reportedly, when the remote user issues the switch from console to PPP, there is a small window of opportunity to send data that will trigger the vulnerability. The report indicates that this may cause a denial of service. It is unknown if there are other impacts for this vulnerability.

Exploit / POC

Linux Kernel Terminal Locking Race Condition Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Linux Kernel Terminal Locking Race Condition Vulnerability

Solution:
This issue has been addressed in version 2.6.9 of the Linux Kernel. Patches are also available for 2.4.x releases.

The Fedora Legacy project has released advisory FLSA:2336 to address this issue for Red Hat Fedora Core 1, Red Hat Linux 7.3 and 9. Please see the referenced advisory for further information.

Ubuntu Linux has released advisory USN-38-1 along with fixes to address this, and other issues. Please see the referenced advisory for further information.

MandrakeSoft has issued fixes in advisory MDKSA-2005:022. See reference section.

TurboLinux has released Turbolinux Security Announcement 28/Feb/2005 dealing with this and other issues. Please see the referenced advisory for more information.

SuSE Linux has released advisory SUSE-SA:2005:018 along with fixes dealing with this and other issues. Please see the referenced advisory for more information.

Red Hat released advisory RHSA-2005:293-16 as well as fixes to address this and other issues on Red Hat Linux Enterprise platforms. Customers who are affected by this issue are advised to apply the appropriate updates. Customers subscribed to the Red Hat Network may apply the appropriate fixes using the Red Hat Update Agent (up2date). Please see referenced advisories for additional information.

Avaya has released advisory ASA-2005-120 stating which Avaya products are vulnerable to this issue. Please see the referenced advisory for further details. No Avaya fixes are currently available.


Linux kernel 2.4.20

Linux kernel 2.4.21

Linux kernel 2.4.22

Linux kernel 2.4.25

Linux kernel 2.4.5

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 2.6.2

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

References

Linux Kernel Terminal Locking Race Condition Vulnerability

References:

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