Synopsis: Moderate: dhcp security update
Issue Date: 2012-08-02
CVE Numbers: CVE-2012-3571
CVE-2012-3954
—
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.
A denial of service flaw was found in the way the dhcpd daemon handled
zero-length client identifiers. A remote attacker could use this flaw to
send a specially-crafted request to dhcpd, possibly causing it to enter an
infinite loop and consume an excessive amount of CPU time. (CVE-2012-3571)
Two memory leak flaws were found in the dhcpd daemon. A remote attacker
could use these flaws to cause dhcpd to exhaust all available memory by
sending a large number of DHCP requests. (CVE-2012-3954)
Users of DHCP should upgrade to these updated packages, which contain
backported patches to correct these issues. After installing this update,
all DHCP servers will be restarted automatically.
—
SL6
x86_64
dhclient-4.1.1-31.P1.el6_3.1.x86_64.rpm
dhcp-4.1.1-31.P1.el6_3.1.x86_64.rpm
dhcp-common-4.1.1-31.P1.el6_3.1.x86_64.rpm
dhcp-devel-4.1.1-31.P1.el6_3.1.i686.rpm
dhcp-devel-4.1.1-31.P1.el6_3.1.x86_64.rpm
i386
dhclient-4.1.1-31.P1.el6_3.1.i686.rpm
dhcp-4.1.1-31.P1.el6_3.1.i686.rpm
dhcp-common-4.1.1-31.P1.el6_3.1.i686.rpm
dhcp-devel-4.1.1-31.P1.el6_3.1.i686.rpm
– Scientific Linux Development Team
