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ID de Prueba:1.3.6.1.4.1.25623.1.0.881457
Categoría:CentOS Local Security Checks
Título:CentOS Update for dhclient CESA-2012:1140 centos5
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.

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)

Upstream acknowledges Markus Hietava of the Codenomicon CROSS project as
the original reporter of this issue.

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.

Affected Software/OS:
dhclient on CentOS 5

Solution:
Please install the updated packages.

CVSS Score:
6.1

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

Referencia Cruzada: Common Vulnerability Exposure (CVE) ID: CVE-2012-3571
BugTraq ID: 54665
http://www.securityfocus.com/bid/54665
Debian Security Information: DSA-2516 (Google Search)
http://www.debian.org/security/2012/dsa-2516
Debian Security Information: DSA-2519 (Google Search)
http://www.debian.org/security/2012/dsa-2519
http://security.gentoo.org/glsa/glsa-201301-06.xml
http://www.mandriva.com/security/advisories?name=MDVSA-2012:115
http://www.mandriva.com/security/advisories?name=MDVSA-2012:116
RedHat Security Advisories: RHSA-2012:1140
http://rhn.redhat.com/errata/RHSA-2012-1140.html
RedHat Security Advisories: RHSA-2012:1141
http://rhn.redhat.com/errata/RHSA-2012-1141.html
SuSE Security Announcement: openSUSE-SU-2012:1006 (Google Search)
http://lists.opensuse.org/opensuse-updates/2012-08/msg00030.html
http://www.ubuntu.com/usn/USN-1519-1
CopyrightCopyright (C) 2012 Greenbone AG

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