CentOS Update fixes a vulnerability in the DHCP client dhclient on CentOS 5 (CESA-2011:0428 centos5 i386). It allows arbitrary code execution via specially-crafted DHCP server replies
Reporter | Title | Published | Views | Family All 112 |
---|---|---|---|---|
![]() | Immunity Canvas: CVE_2011_0997 | 8 Apr 201115:17 | – | canvas |
![]() | ISC dhclient Vulnerability | 8 Apr 201100:00 | – | cisa |
![]() | CVE-2011-0997 | 8 Apr 201115:00 | – | cvelist |
![]() | SOL13219 - DHCP Client vulnerability CVE-2011-0997 | 23 Nov 201100:00 | – | f5 |
![]() | K13219 : DHCP Client vulnerability CVE-2011-0997 | 5 Sep 201300:00 | – | f5 |
![]() | Apple Time Capsule and AirPort Base Station (802.11n) Firmware < 7.6 (APPLE-SA-2011-11-10-2) | 16 Nov 201100:00 | – | nessus |
![]() | Fedora 14 : dhcp-4.2.0-21.P2.fc14 (2011-4897) | 13 Apr 201100:00 | – | nessus |
![]() | Fedora 15 : dhcp-4.2.1-4.P1.fc15 (2011-4934) | 18 Apr 201100:00 | – | nessus |
![]() | Oracle Linux 4 / 5 / 6 : dhcp (ELSA-2011-0428) | 12 Jul 201300:00 | – | nessus |
![]() | openSUSE Security Update : dhcp (openSUSE-SU-2011:0321-1) | 13 Jun 201400:00 | – | nessus |
###############################################################################
# OpenVAS Vulnerability Test
#
# CentOS Update for dhclient CESA-2011:0428 centos5 i386
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (c) 2011 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_solution = "Please Install the Updated Packages.";
tag_affected = "dhclient on CentOS 5";
if(description)
{
script_xref(name : "URL" , value : "http://lists.centos.org/pipermail/centos-announce/2011-April/017295.html");
script_id(880543);
script_version("$Revision: 6653 $");
script_tag(name:"last_modification", value:"$Date: 2017-07-10 13:46:53 +0200 (Mon, 10 Jul 2017) $");
script_tag(name:"creation_date", value:"2011-08-09 08:20:34 +0200 (Tue, 09 Aug 2011)");
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_cve_id("CVE-2011-0997");
script_name("CentOS Update for dhclient CESA-2011:0428 centos5 i386");
script_summary("Check for the Version of dhclient");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (c) 2011 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 : "insight" , value : tag_insight);
script_tag(name : "solution" , value : tag_solution);
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);
}
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