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ID de Prueba:1.3.6.1.4.1.25623.1.0.881401
Categoría:CentOS Local Security Checks
Título:CentOS Update for dhclient CESA-2011:1160 centos4 x86_64
Resumen:The remote host is missing an update for the 'dhclient'; package(s) announced via the referenced advisory.
Descripción:Summary:
The remote host is missing an update for the 'dhclient'
package(s) announced via the referenced advisory.

Vulnerability Insight:
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.

Two denial of service flaws were found in the way the dhcpd daemon handled
certain incomplete request packets. A remote attacker could use these flaws
to crash dhcpd via a specially-crafted request. (CVE-2011-2748,
CVE-2011-2749)

Users of DHCP should upgrade to these updated packages, which contain a
backported patch to correct these issues. After installing this update, all
DHCP servers will be restarted automatically.

Affected Software/OS:
dhclient on CentOS 4

Solution:
Please install the updated packages.

CVSS Score:
7.8

CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:N/A:C

Referencia Cruzada: Common Vulnerability Exposure (CVE) ID: CVE-2011-2748
BugTraq ID: 49120
http://www.securityfocus.com/bid/49120
Debian Security Information: DSA-2292 (Google Search)
http://www.debian.org/security/2011/dsa-2292
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065176.html
http://security.gentoo.org/glsa/glsa-201301-06.xml
http://www.mandriva.com/security/advisories?name=MDVSA-2011:128
http://www.redhat.com/support/errata/RHSA-2011-1160.html
http://securitytracker.com/id?1025918
http://secunia.com/advisories/45582
http://secunia.com/advisories/45595
http://secunia.com/advisories/45629
http://secunia.com/advisories/45639
http://secunia.com/advisories/45817
http://secunia.com/advisories/45918
http://secunia.com/advisories/46780
SuSE Security Announcement: SUSE-SU-2011:1023 (Google Search)
https://hermes.opensuse.org/messages/11695711
SuSE Security Announcement: openSUSE-SU-2011:1021 (Google Search)
http://lists.opensuse.org/opensuse-updates/2011-09/msg00014.html
http://www.ubuntu.com/usn/USN-1190-1
XForce ISS Database: isc-dhcp-packet-dos(69139)
https://exchange.xforce.ibmcloud.com/vulnerabilities/69139
Common Vulnerability Exposure (CVE) ID: CVE-2011-2749
CopyrightCopyright (C) 2012 Greenbone AG

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