Ubuntu 14.04 LTS / 16.04 LTS : PostgreSQL vulnerabilities (USN-3479-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3479-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include('compat.inc');

if (description)
{
  script_id(104569);
  script_version("3.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/20");

  script_cve_id("CVE-2017-15098", "CVE-2017-15099");
  script_xref(name:"USN", value:"3479-1");

  script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS : PostgreSQL vulnerabilities (USN-3479-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"David Rowley discovered that PostgreSQL incorrectly handled memory
when processing certain JSON functions. A remote attacker could
possibly use this issue to obtain sensitive information.
(CVE-2017-15098)

Dean Rasheed discovered that PostgreSQL incorrectly enforced SELECT
privileges when processing INSERT ... ON CONFLICT DO UPDATE commands.
A remote attacker could possibly use this issue to obtain sensitive
information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 17.04
and Ubuntu 17.10.

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-3479-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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-2017-15098");

  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:"2017/11/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/11/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-9.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-9.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-client-9.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-client-9.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-contrib-9.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-contrib-9.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-plperl-9.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-plperl-9.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-plpython-9.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-plpython-9.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-plpython3-9.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-plpython3-9.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-pltcl-9.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-pltcl-9.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-server-dev-9.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-server-dev-9.5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libecpg-compat3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libecpg-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libecpg6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libpgtypes3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libpq-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libpq5");
  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) 2017-2023 Canonical, Inc. / NASL script (C) 2017-2023 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 || '16.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04 / 16.04', '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': 'libecpg-compat3', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'libecpg-dev', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'libecpg6', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'libpgtypes3', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'libpq-dev', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'libpq5', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-9.3', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-client-9.3', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-contrib-9.3', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-plperl-9.3', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-plpython-9.3', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-plpython3-9.3', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-pltcl-9.3', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-server-dev-9.3', 'pkgver': '9.3.20-0ubuntu0.14.04'},
    {'osver': '16.04', 'pkgname': 'libecpg-compat3', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'libecpg-dev', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'libecpg6', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'libpgtypes3', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'libpq-dev', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'libpq5', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-9.5', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-client-9.5', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-contrib-9.5', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-plperl-9.5', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-plpython-9.5', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-plpython3-9.5', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-pltcl-9.5', 'pkgver': '9.5.10-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-server-dev-9.5', 'pkgver': '9.5.10-0ubuntu0.16.04'}
];

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, 'libecpg-compat3 / libecpg-dev / libecpg6 / libpgtypes3 / libpq-dev / etc');
}