Please Install the Updated Packages.

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) An insecure temporary file use flaw was discovered in the DHCP daemon's init script (&quot /etc/init.d/dhcpd&quot ). A local attacker could use this flaw to overwrite an arbitrary file with the output of the &quot dhcpd -t&quot command via a symbolic link attack, if a system administrator executed the DHCP init script with the &quot configtest&quot , &quot restart&quot , or &quot reload&quot option. (CVE-2009-1893) Users of DHCP should upgrade to these updated packages, which contain backported patches to correct these issues.

dhclient on CentOS 3

• http://lists.centos.org/pipermail/centos-announce/2009-July/016034.html

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Updated on 2015-03-25