Linux Kernel IPTables Logging Rules Integer Underflow Vulnerability

BID:11488

Info

Linux Kernel IPTables Logging Rules Integer Underflow Vulnerability

Bugtraq ID: 11488
Class: Boundary Condition Error
CVE: CVE-2004-0816
Remote: Yes
Local: No
Published: Oct 21 2004 12:00AM
Updated: Jul 12 2009 08:06AM
Credit: Discovery of this vulnerability is credited to Richard Hart.
Vulnerable: S.u.S.E. Linux Personal 9.1
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
+ S.u.S.E. Linux Personal 9.1 x86_64
 + S.u.S.E. Linux Personal 9.1 x86_64
 + S.u.S.E. Linux Personal 9.1
+ S.u.S.E. Linux Personal 9.1
+ SuSE Linux Enterprise Server 9
 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
Not Vulnerable:

Discussion

Linux Kernel IPTables Logging Rules Integer Underflow Vulnerability

It is reported that an integer underflow vulnerability is present in the iptables logging rules of the Linux kernel 2.6 branch.

A remote attacker may exploit this vulnerability to crash a computer that is running the affected kernel.

The 2.6 Linux kernel is reported prone to this vulnerability, the 2.4 kernel is not reported to be vulnerable.

Exploit / POC

Linux Kernel IPTables Logging Rules Integer Underflow Vulnerability

A proof of concept exploit is provided by [email protected]:

Solution / Fix

Linux Kernel IPTables Logging Rules Integer Underflow Vulnerability

Solution:
It is reported that this issue is already fixed in the 2.6.8 upstream Linux kernel.

SuSE has released an advisory (SUSE-SA:2004:037) and fixes to address this vulnerability in SuSE products. Customers are advised to peruse the referenced advisory for further information pertaining to obtaining and applying appropriate fixes.

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.


Linux kernel 2.6

Linux kernel 2.6.3

Linux kernel 2.6.4

References

Linux Kernel IPTables Logging Rules Integer Underflow Vulnerability

References:

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