Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : PostgreSQL vulnerabilities (USN-3744-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3744-1. 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(111844);
  script_version("1.12");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/27");

  script_cve_id("CVE-2018-10915", "CVE-2018-10925");
  script_xref(name:"USN", value:"3744-1");

  script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : PostgreSQL vulnerabilities (USN-3744-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple
vulnerabilities as referenced in the USN-3744-1 advisory.

    Andrew Krasichkov discovered that the PostgreSQL client library incorrectly reset its internal state
    between connections. A remote attacker could possibly use this issue to bypass certain client-side
    connection security features. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
    (CVE-2018-10915)

    It was discovered that PostgreSQL incorrectly checked authorization on certain statements. A remote
    attacker could possibly use this issue to read arbitrary server memory or alter certain data.
    (CVE-2018-10925)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-3744-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/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:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-10915");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2018-10925");

  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:"2018/08/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/08/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-10");
  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-10");
  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-10");
  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-10");
  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-plpython3-10");
  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-10");
  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-10");
  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:"cpe:/o:canonical:ubuntu_linux:18.04:-: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) 2018-2024 Canonical, Inc. / NASL script (C) 2018-2024 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 || '18.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04 / 16.04 / 18.04', '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': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'libecpg-dev', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'libecpg6', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'libpgtypes3', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'libpq-dev', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'libpq5', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-9.3', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-client-9.3', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-contrib-9.3', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-plperl-9.3', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-plpython-9.3', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-plpython3-9.3', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-pltcl-9.3', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '14.04', 'pkgname': 'postgresql-server-dev-9.3', 'pkgver': '9.3.24-0ubuntu0.14.04'},
    {'osver': '16.04', 'pkgname': 'libecpg-compat3', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'libecpg-dev', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'libecpg6', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'libpgtypes3', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'libpq-dev', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'libpq5', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-9.5', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-client-9.5', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-contrib-9.5', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-plperl-9.5', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-plpython-9.5', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-plpython3-9.5', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-pltcl-9.5', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '16.04', 'pkgname': 'postgresql-server-dev-9.5', 'pkgver': '9.5.14-0ubuntu0.16.04'},
    {'osver': '18.04', 'pkgname': 'libecpg-compat3', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'libecpg-dev', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'libecpg6', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'libpgtypes3', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'libpq-dev', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'libpq5', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'postgresql-10', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'postgresql-client-10', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'postgresql-plperl-10', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'postgresql-plpython-10', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'postgresql-plpython3-10', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'postgresql-pltcl-10', 'pkgver': '10.5-0ubuntu0.18.04'},
    {'osver': '18.04', 'pkgname': 'postgresql-server-dev-10', 'pkgver': '10.5-0ubuntu0.18.04'}
];

var flag = 0;
foreach var 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)
{
  var extra = '';
  extra += ubuntu_report_get();
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : extra
  );
  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');
}