CentOS Update for dhclient CESA-2011:0428 centos5 x86_64

###############################################################################
# OpenVAS Vulnerability Test
#
# CentOS Update for dhclient CESA-2011:0428 centos5 x86_64
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (c) 2012 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

include("revisions-lib.inc");
tag_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.

  It was discovered that the DHCP client daemon, dhclient, did not
  sufficiently sanitize certain options provided in DHCP server replies, such
  as the client hostname. A malicious DHCP server could send such an option
  with a specially-crafted value to a DHCP client. If this option's value was
  saved on the client system, and then later insecurely evaluated by a
  process that assumes the option is trusted, it could lead to arbitrary code
  execution with the privileges of that process. (CVE-2011-0997)
  
  Red Hat would like to thank Sebastian Krahmer of the SuSE Security Team for
  reporting this issue.
  
  All dhclient users should upgrade to these updated packages, which contain
  a backported patch to correct this issue.";

tag_affected = "dhclient on CentOS 5";
tag_solution = "Please Install the Updated Packages.";



if(description)
{
  script_xref(name : "URL" , value : "http://lists.centos.org/pipermail/centos-announce/2011-April/017296.html");
  script_id(881277);
  script_version("$Revision: 8295 $");
  script_tag(name:"last_modification", value:"$Date: 2018-01-05 07:29:18 +0100 (Fri, 05 Jan 2018) $");
  script_tag(name:"creation_date", value:"2012-07-30 17:15:20 +0530 (Mon, 30 Jul 2012)");
  script_cve_id("CVE-2011-0997");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_xref(name: "CESA", value: "2011:0428");
  script_name("CentOS Update for dhclient CESA-2011:0428 centos5 x86_64");

  script_tag(name: "summary" , value: "Check for the Version of dhclient");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (c) 2012 Greenbone Networks GmbH");
  script_family("CentOS Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/centos", "ssh/login/rpms");
  script_tag(name : "affected" , value : tag_affected);
  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "insight" , value : tag_insight);
  script_tag(name:"qod_type", value:"package");
  script_tag(name:"solution_type", value:"VendorFix");
  exit(0);
}


include("pkg-lib-rpm.inc");

release = get_kb_item("ssh/login/release");

res = "";
if(release == NULL){
  exit(0);
}

if(release == "CentOS5")
{

  if ((res = isrpmvuln(pkg:"dhclient", rpm:"dhclient~3.0.5~23.el5_6.4", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"dhcp", rpm:"dhcp~3.0.5~23.el5_6.4", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"dhcp-devel", rpm:"dhcp-devel~3.0.5~23.el5_6.4", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"libdhcp4client", rpm:"libdhcp4client~3.0.5~23.el5_6.4", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if ((res = isrpmvuln(pkg:"libdhcp4client-devel", rpm:"libdhcp4client-devel~3.0.5~23.el5_6.4", rls:"CentOS5")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99); # Not vulnerable.
  exit(0);
}