TencentOS Server 3: postgresql (TSSA-2022:0181)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Tencent Linux Security Advisory TSSA-2022:0181.
##

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

if (description)
{
  script_id(239226);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/12/05");

  script_cve_id(
    "CVE-2019-10130",
    "CVE-2019-10208",
    "CVE-2020-14350",
    "CVE-2021-32027",
    "CVE-2021-32028"
  );

  script_name(english:"TencentOS Server 3: postgresql (TSSA-2022:0181)");

  script_set_attribute(attribute:"synopsis", value:
"The remote TencentOS Server 3 host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is,
therefore, affected by multiple vulnerabilities as referenced in the TSSA-2022:0181 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2021-32027:
    A flaw was found in postgresql in versions before 13.3, before 12.7, before 11.12, before 10.17 and before
    9.6.22. While modifying certain SQL array values, missing bounds checks let authenticated database users
    write arbitrary bytes to a wide area of server memory. The highest threat from this vulnerability is to
    data confidentiality and integrity as well as system availability.

    CVE-2021-32028:
    A flaw was found in postgresql. Using an INSERT ... ON CONFLICT ... DO UPDATE command on a purpose-crafted
    table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from
    this vulnerability is to data confidentiality.

    CVE-2019-10208:
    A flaw was discovered in postgresql versions 9.4.x before 9.4.24, 9.5.x before 9.5.19, 9.6.x before
    9.6.15, 10.x before 10.10 and 11.x before 11.5 where arbitrary SQL statements can be executed given a
    suitable SECURITY DEFINER function. An attacker, with EXECUTE permission on the function, can execute
    arbitrary SQL as the owner of the function.

    CVE-2020-14350:
    It was found that some PostgreSQL extensions did not use search_path safely in their installation script.
    An attacker with sufficient privileges could use this flaw to trick an administrator into executing a
    specially crafted script, during the installation or update of such extension. This affects PostgreSQL
    versions before 12.4, before 11.9, before 10.14, before 9.6.19, and before 9.5.23.

    CVE-2019-10130:
    A vulnerability was found in PostgreSQL versions 11.x up to excluding 11.3, 10.x up to excluding 10.8,
    9.6.x up to, excluding 9.6.13, 9.5.x up to, excluding 9.5.17. PostgreSQL maintains column statistics for
    tables. Certain statistics, such as histograms and lists of most common values, contain values taken from
    the column. PostgreSQL does not evaluate row security policies before consulting those statistics during
    query planning; an attacker can exploit this to read the most common values of certain columns. Affected
    columns are those for which the attacker has SELECT privilege and for which, in an ordinary query, row-
    level security prunes the set of rows visible to the attacker.

Tenable has extracted the preceding description block directly from the Tencent Linux 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://mirrors.tencent.com/tlinux/errata/tssa-20220181.xml");
  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: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:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-32027");

  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:"2022/11/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/11/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/06/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:tencent:tencentos_server:3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:postgresql");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/etc/os-release", "Host/TencentOS/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'TencentOS' >!< os_product) audit(AUDIT_OS_NOT, 'TencentOS');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'TencentOS');
if (! preg(pattern:"^3([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'TencentOS 3.x', 'TencentOS ' + os_version);

if (!get_kb_item('Host/TencentOS/rpm-list')) 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, 'TencentOS', cpu);

var constraints = [
  {
    'release': '3',
    'pkgs': [
      {'reference':'postgresql-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-contrib-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-contrib-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-contrib-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-contrib-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-debugsource-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-debugsource-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-docs-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-docs-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-docs-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-docs-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-plperl-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-plperl-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-plperl-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-plperl-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-plpython3-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-plpython3-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-plpython3-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-plpython3-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-pltcl-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-pltcl-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-pltcl-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-pltcl-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-server-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-server-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-server-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-server-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-server-devel-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-server-devel-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-server-devel-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-server-devel-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-static-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-static-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-test-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-test-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-test-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-test-debuginfo-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-test-rpm-macros-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'postgresql-test-rpm-macros-9.6.22-1.module+el8.6.0+216+735e8ab8', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'postgresql / postgresql-contrib / postgresql-contrib-debuginfo / etc');
}