Updated dhcp packages that fix a security issue are now available for Red Hat Enterprise Linux 4 and 4.7 Extended Update Support. This update has been rated as having critical security impact by the Red Hat Security Response Team.

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====================================================================                   Red Hat Security Advisory

Synopsis:          Critical: dhcp security update
Advisory ID:       RHSA-2009:1136-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2009:1136.html
Issue date:        2009-07-14
CVE Names:         CVE-2009-0692 
====================================================================
1. Summary:

Updated dhcp packages that fix a security issue are now available for Red
Hat Enterprise Linux 4 and 4.7 Extended Update Support.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux AS version 4.7.z - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux ES version 4.7.z - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Description:

The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows
individual devices on an IP network to get their own network configuration
information, including an IP address, a subnet mask, and a broadcast
address.

The Mandriva Linux Engineering Team discovered a stack-based buffer
overflow flaw in the ISC DHCP client. If the DHCP client were to receive a
malicious DHCP response, it could crash or execute arbitrary code with the
permissions of the client (root). (CVE-2009-0692)

Users of DHCP should upgrade to these updated packages, which contain a
backported patch to correct this issue.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network.  Details on how to use
the Red Hat Network to apply this update are available at

5. Bugs fixed (http://bugzilla.redhat.com/):

507717 - CVE-2009-0692 dhclient: stack overflow leads to arbitrary code execution as root

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:

i386:
dhclient-3.0.1-65.el4_8.1.i386.rpm
dhcp-3.0.1-65.el4_8.1.i386.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.i386.rpm
dhcp-devel-3.0.1-65.el4_8.1.i386.rpm

ia64:
dhclient-3.0.1-65.el4_8.1.ia64.rpm
dhcp-3.0.1-65.el4_8.1.ia64.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.ia64.rpm
dhcp-devel-3.0.1-65.el4_8.1.ia64.rpm

ppc:
dhclient-3.0.1-65.el4_8.1.ppc.rpm
dhcp-3.0.1-65.el4_8.1.ppc.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.ppc.rpm
dhcp-devel-3.0.1-65.el4_8.1.ppc.rpm

s390:
dhclient-3.0.1-65.el4_8.1.s390.rpm
dhcp-3.0.1-65.el4_8.1.s390.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.s390.rpm
dhcp-devel-3.0.1-65.el4_8.1.s390.rpm

s390x:
dhclient-3.0.1-65.el4_8.1.s390x.rpm
dhcp-3.0.1-65.el4_8.1.s390x.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.s390x.rpm
dhcp-devel-3.0.1-65.el4_8.1.s390x.rpm

x86_64:
dhclient-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-devel-3.0.1-65.el4_8.1.x86_64.rpm

Red Hat Enterprise Linux AS version 4.7.z:

Source:

i386:
dhclient-3.0.1-62.el4_7.1.i386.rpm
dhcp-3.0.1-62.el4_7.1.i386.rpm
dhcp-debuginfo-3.0.1-62.el4_7.1.i386.rpm
dhcp-devel-3.0.1-62.el4_7.1.i386.rpm

ia64:
dhclient-3.0.1-62.el4_7.1.ia64.rpm
dhcp-3.0.1-62.el4_7.1.ia64.rpm
dhcp-debuginfo-3.0.1-62.el4_7.1.ia64.rpm
dhcp-devel-3.0.1-62.el4_7.1.ia64.rpm

ppc:
dhclient-3.0.1-62.el4_7.1.ppc.rpm
dhcp-3.0.1-62.el4_7.1.ppc.rpm
dhcp-debuginfo-3.0.1-62.el4_7.1.ppc.rpm
dhcp-devel-3.0.1-62.el4_7.1.ppc.rpm

s390:
dhclient-3.0.1-62.el4_7.1.s390.rpm
dhcp-3.0.1-62.el4_7.1.s390.rpm
dhcp-debuginfo-3.0.1-62.el4_7.1.s390.rpm
dhcp-devel-3.0.1-62.el4_7.1.s390.rpm

s390x:
dhclient-3.0.1-62.el4_7.1.s390x.rpm
dhcp-3.0.1-62.el4_7.1.s390x.rpm
dhcp-debuginfo-3.0.1-62.el4_7.1.s390x.rpm
dhcp-devel-3.0.1-62.el4_7.1.s390x.rpm

x86_64:
dhclient-3.0.1-62.el4_7.1.x86_64.rpm
dhcp-3.0.1-62.el4_7.1.x86_64.rpm
dhcp-debuginfo-3.0.1-62.el4_7.1.x86_64.rpm
dhcp-devel-3.0.1-62.el4_7.1.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:

i386:
dhclient-3.0.1-65.el4_8.1.i386.rpm
dhcp-3.0.1-65.el4_8.1.i386.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.i386.rpm
dhcp-devel-3.0.1-65.el4_8.1.i386.rpm

x86_64:
dhclient-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-devel-3.0.1-65.el4_8.1.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:

i386:
dhclient-3.0.1-65.el4_8.1.i386.rpm
dhcp-3.0.1-65.el4_8.1.i386.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.i386.rpm
dhcp-devel-3.0.1-65.el4_8.1.i386.rpm

ia64:
dhclient-3.0.1-65.el4_8.1.ia64.rpm
dhcp-3.0.1-65.el4_8.1.ia64.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.ia64.rpm
dhcp-devel-3.0.1-65.el4_8.1.ia64.rpm

x86_64:
dhclient-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-devel-3.0.1-65.el4_8.1.x86_64.rpm

Red Hat Enterprise Linux ES version 4.7.z:

Source:

i386:
dhclient-3.0.1-62.el4_7.1.i386.rpm
dhcp-3.0.1-62.el4_7.1.i386.rpm
dhcp-debuginfo-3.0.1-62.el4_7.1.i386.rpm
dhcp-devel-3.0.1-62.el4_7.1.i386.rpm

ia64:
dhclient-3.0.1-62.el4_7.1.ia64.rpm
dhcp-3.0.1-62.el4_7.1.ia64.rpm
dhcp-debuginfo-3.0.1-62.el4_7.1.ia64.rpm
dhcp-devel-3.0.1-62.el4_7.1.ia64.rpm

x86_64:
dhclient-3.0.1-62.el4_7.1.x86_64.rpm
dhcp-3.0.1-62.el4_7.1.x86_64.rpm
dhcp-debuginfo-3.0.1-62.el4_7.1.x86_64.rpm
dhcp-devel-3.0.1-62.el4_7.1.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:

i386:
dhclient-3.0.1-65.el4_8.1.i386.rpm
dhcp-3.0.1-65.el4_8.1.i386.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.i386.rpm
dhcp-devel-3.0.1-65.el4_8.1.i386.rpm

ia64:
dhclient-3.0.1-65.el4_8.1.ia64.rpm
dhcp-3.0.1-65.el4_8.1.ia64.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.ia64.rpm
dhcp-devel-3.0.1-65.el4_8.1.ia64.rpm

x86_64:
dhclient-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-debuginfo-3.0.1-65.el4_8.1.x86_64.rpm
dhcp-devel-3.0.1-65.el4_8.1.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.cve.org/CVERecord?id=CVE-2009-0692
https://access.redhat.com/security/updates/classification#critical

8. Contact:

The Red Hat security contact is .  More contact
details at https://access.redhat.com/security/team/contact

Copyright 2009 Red Hat, Inc.
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