Ubuntu 14.04 LTS : DBus vulnerabilities (USN-2352-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-2352-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(77809);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");

  script_cve_id(
    "CVE-2014-3635",
    "CVE-2014-3636",
    "CVE-2014-3637",
    "CVE-2014-3638",
    "CVE-2014-3639"
  );
  script_bugtraq_id(
    69829,
    69831,
    69832,
    69833,
    69834
  );
  script_xref(name:"USN", value:"2352-1");

  script_name(english:"Ubuntu 14.04 LTS : DBus vulnerabilities (USN-2352-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"Simon McVittie discovered that DBus incorrectly handled the file
descriptors message limit. A local attacker could use this issue to
cause DBus to crash, resulting in a denial of service, or possibly
execute arbitrary code. This issue only applied to Ubuntu 12.04 LTS
and Ubuntu 14.04 LTS. (CVE-2014-3635)

Alban Crequy discovered that DBus incorrectly handled a large number
of file descriptor messages. A local attacker could use this issue to
cause DBus to stop responding, resulting in a denial of service. This
issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.
(CVE-2014-3636)

Alban Crequy discovered that DBus incorrectly handled certain file
descriptor messages. A local attacker could use this issue to cause
DBus to maintain persistent connections, possibly resulting in a
denial of service. This issue only applied to Ubuntu 12.04 LTS and
Ubuntu 14.04 LTS. (CVE-2014-3637)

Alban Crequy discovered that DBus incorrectly handled a large number
of parallel connections and parallel message calls. A local attacker
could use this issue to cause DBus to consume resources, possibly
resulting in a denial of service. (CVE-2014-3638)

Alban Crequy discovered that DBus incorrectly handled incomplete
connections. A local attacker could use this issue to cause DBus to
fail legitimate connection attempts, resulting in a denial of service.
(CVE-2014-3639).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-2352-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2014-3635");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2014-3639");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/09/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/09/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/09/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dbus");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:dbus-x11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libdbus-1-3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libdbus-1-dev");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Ubuntu Local Security Checks");

  script_copyright(english:"Ubuntu Security Notice (C) 2014-2020 Canonical, Inc. / NASL script (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('14.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);

var pkgs = [
    {'osver': '14.04', 'pkgname': 'dbus', 'pkgver': '1.6.18-0ubuntu4.2'},
    {'osver': '14.04', 'pkgname': 'dbus-x11', 'pkgver': '1.6.18-0ubuntu4.2'},
    {'osver': '14.04', 'pkgname': 'libdbus-1-3', 'pkgver': '1.6.18-0ubuntu4.2'},
    {'osver': '14.04', 'pkgname': 'libdbus-1-dev', 'pkgver': '1.6.18-0ubuntu4.2'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var osver = NULL;
  var pkgname = NULL;
  var pkgver = NULL;
  if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
  if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
  if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
  if (osver && pkgname && pkgver) {
    if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'dbus / dbus-x11 / libdbus-1-3 / libdbus-1-dev');
}