PXE Server DHCP Packet Denial Of Service Vulnerability

BID:5596

Info

PXE Server DHCP Packet Denial Of Service Vulnerability

Bugtraq ID: 5596
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2002-0835
Remote: Yes
Local: No
Published: Aug 30 2002 12:00AM
Updated: Jul 11 2009 03:56PM
Credit: Published in a Red Hat Security Advisory.
Vulnerable: Redhat PXE Server 0.1
+ Redhat Linux 7.3 i386
 + Redhat Linux 7.3
+ Redhat Linux 7.2 i386
 + Redhat Linux 7.2
+ Redhat Linux 7.1 i386
 + Redhat Linux 7.1
+ Redhat Linux 7.0 i386
 + Redhat Linux 7.0
+ Redhat Linux 6.2 i386
 + Redhat Linux 6.2
 HP Secure OS software for Linux 1.0
Caldera OpenLinux Workstation 3.1.1
Caldera OpenLinux Workstation 3.1
Caldera OpenLinux Server 3.1.1
Caldera OpenLinux Server 3.1
Not Vulnerable:

Discussion

PXE Server DHCP Packet Denial Of Service Vulnerability

Red Hat Linux includes a Preboot eXecution Environment (PXE) server. PXE can be used to boot a Linux based system from a remote disk image.

The PXE server included with some versions of Red Hat may crash if unexpected DHCP packets are received. Exploitation may result in a denial of service condition.

Exploit / POC

PXE Server DHCP Packet Denial Of Service 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

PXE Server DHCP Packet Denial Of Service Vulnerability

Solution:
HP advises that the packages listed in RHSA-2002:162 under Red Hat Linux 7.1 i386 are installed to patch HP Secure OS Software for Linux Release 1.0.

The SCO Group has released an advisory for OpenLinux. Further details are available in the referenced advisory.

Updates are available:


Redhat PXE Server 0.1

HP Secure OS software for Linux 1.0

Caldera OpenLinux Server 3.1

Caldera OpenLinux Workstation 3.1

Caldera OpenLinux Server 3.1.1

Caldera OpenLinux Workstation 3.1.1

References

PXE Server DHCP Packet Denial Of Service Vulnerability

References:

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