Updated dbus packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
D-Bus is a system for sending messages between applications. It is used for the system-wide message bus service and as a per-user-login-session messaging facility.
A denial of service flaw was found in the way the D-Bus library handled endianness conversion when receiving messages. A local user could use this flaw to send a specially crafted message to dbus-daemon or to a service using the bus, such as Avahi or NetworkManager, possibly causing the daemon to exit or the service to disconnect from the bus. (CVE-2011-2200)
All users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. For the update to take effect, all running instances of dbus-daemon and all running applications using the libdbus library must be restarted, or the system rebooted.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2011:1132 and
# CentOS Errata and Security Advisory 2011:1132 respectively.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(56269);
script_version("1.14");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2011-2200");
script_bugtraq_id(48216);
script_xref(name:"RHSA", value:"2011:1132");
script_name(english:"CentOS 5 : dbus (CESA-2011:1132)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote CentOS host is missing one or more security updates."
);
script_set_attribute(
attribute:"description",
value:
"Updated dbus packages that fix one security issue are now available
for Red Hat Enterprise Linux 5 and 6.
The Red Hat Security Response Team has rated this update as having
moderate security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from
the CVE link in the References section.
D-Bus is a system for sending messages between applications. It is
used for the system-wide message bus service and as a
per-user-login-session messaging facility.
A denial of service flaw was found in the way the D-Bus library
handled endianness conversion when receiving messages. A local user
could use this flaw to send a specially crafted message to dbus-daemon
or to a service using the bus, such as Avahi or NetworkManager,
possibly causing the daemon to exit or the service to disconnect from
the bus. (CVE-2011-2200)
All users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. For the update to
take effect, all running instances of dbus-daemon and all running
applications using the libdbus library must be restarted, or the
system rebooted."
);
# https://lists.centos.org/pipermail/centos-announce/2011-September/017794.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?5834bca9"
);
# https://lists.centos.org/pipermail/centos-announce/2011-September/017795.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?328276fc"
);
# https://lists.centos.org/pipermail/centos-cr-announce/2011-September/000238.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?d130dc2c"
);
# https://lists.centos.org/pipermail/centos-cr-announce/2011-September/000239.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?9f5ee7d9"
);
script_set_attribute(attribute:"solution", value:"Update the affected dbus packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:dbus");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:dbus-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:dbus-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:dbus-x11");
script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");
script_set_attribute(attribute:"vuln_publication_date", value:"2011/06/22");
script_set_attribute(attribute:"patch_publication_date", value:"2011/09/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2011/09/23");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2011-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"CentOS Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 5.x", "CentOS " + os_ver);
if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);
flag = 0;
if (rpm_check(release:"CentOS-5", reference:"dbus-1.1.2-16.el5_7")) flag++;
if (rpm_check(release:"CentOS-5", reference:"dbus-devel-1.1.2-16.el5_7")) flag++;
if (rpm_check(release:"CentOS-5", reference:"dbus-libs-1.1.2-16.el5_7")) flag++;
if (rpm_check(release:"CentOS-5", reference:"dbus-x11-1.1.2-16.el5_7")) flag++;
if (flag)
{
cr_plugin_caveat = '\n' +
'NOTE: The security advisory associated with this vulnerability has a\n' +
'fixed package version that may only be available in the continuous\n' +
'release (CR) repository for CentOS, until it is present in the next\n' +
'point release of CentOS.\n\n' +
'If an equal or higher package level does not exist in the baseline\n' +
'repository for your major version of CentOS, then updates from the CR\n' +
'repository will need to be applied in order to address the\n' +
'vulnerability.\n';
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get() + cr_plugin_caveat
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "dbus / dbus-devel / dbus-libs / dbus-x11");
}