Network UPS Tools (NUT) 'addchar()' Function Buffer Overflow Vulnerability

BID:53743

Info

Network UPS Tools (NUT) 'addchar()' Function Buffer Overflow Vulnerability

Bugtraq ID: 53743
Class: Boundary Condition Error
CVE: CVE-2012-2944
Remote: Yes
Local: No
Published: May 29 2012 12:00AM
Updated: Sep 27 2012 09:30PM
Credit: Sebastian Pohle
Vulnerable: Ubuntu Ubuntu Linux 12.04 LTS i386
Ubuntu Ubuntu Linux 12.04 LTS amd64
Ubuntu Ubuntu Linux 11.10 i386
Ubuntu Ubuntu Linux 11.10 amd64
Ubuntu Ubuntu Linux 11.04 powerpc
Ubuntu Ubuntu Linux 11.04 i386
Ubuntu Ubuntu Linux 11.04 ARM
Ubuntu Ubuntu Linux 11.04 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
Mandriva Linux Mandrake 2011 x86_64
Mandriva Linux Mandrake 2011
Mandriva Linux Mandrake 2010.1 x86_64
Mandriva Linux Mandrake 2010.1
MandrakeSoft Enterprise Server 5 x86_64
MandrakeSoft Enterprise Server 5
Gentoo Linux
Eaton Corporation Network UPS Tools (NUT) 2.6.3
Debian Linux 6.0 sparc
Debian Linux 6.0 s/390
Debian Linux 6.0 powerpc
Debian Linux 6.0 mips
Debian Linux 6.0 ia-64
Debian Linux 6.0 ia-32
Debian Linux 6.0 arm
Debian Linux 6.0 amd64
Not Vulnerable: Eaton Corporation Network UPS Tools (NUT) 2.6.4

Discussion

Network UPS Tools (NUT) 'addchar()' Function Buffer Overflow Vulnerability

Network UPS Tools (NUT) is prone to a buffer-overflow vulnerability because it fails to perform boundary checks before copying user-supplied data to insufficiently sized memory buffers.

An attacker may exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in a denial-of-service condition.

Versions prior to Network UPS Tools (NUT) 2.6.4 are vulnerable.

Exploit / POC

Network UPS Tools (NUT) 'addchar()' Function Buffer Overflow Vulnerability

Currently we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Solution / Fix

Network UPS Tools (NUT) 'addchar()' Function Buffer Overflow Vulnerability

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


Mandriva Linux Mandrake 2010.1

MandrakeSoft Enterprise Server 5 x86_64

Mandriva Linux Mandrake 2011 x86_64

Mandriva Linux Mandrake 2011

MandrakeSoft Enterprise Server 5

Mandriva Linux Mandrake 2010.1 x86_64

References

Network UPS Tools (NUT) 'addchar()' Function Buffer Overflow Vulnerability

References:
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