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Red Hat 4: RHSA-2009:1136-01 Critical: Dhcp Buffer Overflow Threat

red hat
Calendar Grey July 14, 2009
Dist Redhat Esm H88
Important security patch released by Red Hat to fix buffer overflow vulnerabilities in DHCP components. Immediate upgrade advised.
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 sec...

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

Summary

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.

Topics%20covered

Topics Covered

security advisory network security Red Hat buffer overflow software update critical impact DHCP update

References

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

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

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

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

Topic

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

Topics%20covered

Topics Covered

security advisory network security Red Hat buffer overflow software update critical impact DHCP update

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

Bugs Fixed

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

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