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RedHatRHSA-2011:1819HistoryDec 14, 2011 - 12:00 a.m.
(RHSA-2011:1819) Moderate: dhcp security update
2011-12-1400:00:00
access.redhat.com
15
0.028 Low
EPSS
Percentile
90.7%
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 DHCP
request packets when regular expression matching was used in
“/etc/dhcp/dhcpd.conf”. A remote attacker could use this flaw to crash
dhcpd. (CVE-2011-4539)
Users of DHCP should upgrade to these updated packages, which contain a
backported patch to correct this issue. After installing this update, all
DHCP servers will be restarted automatically.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| RedHat | 6 | ppc64 | dhcp | < 4.1.1-25.P1.el6_2.1 | dhcp-4.1.1-25.P1.el6_2.1.ppc64.rpm |
| RedHat | 6 | i686 | dhclient | < 4.1.1-25.P1.el6_2.1 | dhclient-4.1.1-25.P1.el6_2.1.i686.rpm |
| RedHat | 6 | ppc | dhcp-devel | < 4.1.1-25.P1.el6_2.1 | dhcp-devel-4.1.1-25.P1.el6_2.1.ppc.rpm |
| RedHat | 6 | i686 | dhcp-common | < 4.1.1-25.P1.el6_2.1 | dhcp-common-4.1.1-25.P1.el6_2.1.i686.rpm |
| RedHat | 6 | ppc64 | dhclient | < 4.1.1-25.P1.el6_2.1 | dhclient-4.1.1-25.P1.el6_2.1.ppc64.rpm |
| RedHat | 6 | i686 | dhcp | < 4.1.1-25.P1.el6_2.1 | dhcp-4.1.1-25.P1.el6_2.1.i686.rpm |
| RedHat | 6 | s390x | dhclient | < 4.1.1-25.P1.el6_2.1 | dhclient-4.1.1-25.P1.el6_2.1.s390x.rpm |
| RedHat | 6 | x86_64 | dhcp-debuginfo | < 4.1.1-25.P1.el6_2.1 | dhcp-debuginfo-4.1.1-25.P1.el6_2.1.x86_64.rpm |
| RedHat | 6 | s390x | dhcp-common | < 4.1.1-25.P1.el6_2.1 | dhcp-common-4.1.1-25.P1.el6_2.1.s390x.rpm |
| RedHat | 6 | ppc | dhcp-debuginfo | < 4.1.1-25.P1.el6_2.1 | dhcp-debuginfo-4.1.1-25.P1.el6_2.1.ppc.rpm |
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