SUSE SLED15 / SLES15 Security Update : postgresql12 (SUSE-SU-2021:1994-1)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2021:1994-1. The text itself
# is copyright (C) SUSE.
##

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

if (description)
{
  script_id(150893);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/13");

  script_cve_id("CVE-2021-32027", "CVE-2021-32028", "CVE-2021-32029");
  script_xref(name:"SuSE", value:"SUSE-SU-2021:1994-1");
  script_xref(name:"IAVB", value:"2021-B-0036-S");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : postgresql12 (SUSE-SU-2021:1994-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as
referenced in the SUSE-SU-2021:1994-1 advisory.

  - 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-2021-32027)

  - 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-2021-32028)

  - A flaw was found in postgresql. Using an UPDATE ... RETURNING 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-2021-32029)

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://bugzilla.suse.com/1179945");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1183118");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1183168");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1185924");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1185925");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1185926");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-32027");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-32028");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-32029");
  # https://lists.suse.com/pipermail/sle-security-updates/2021-June/009026.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?69512a1f");
  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:"2021/05/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/06/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/06/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql12");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql12-contrib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql12-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql12-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql12-plperl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql12-plpython");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql12-pltcl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql12-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql12-server-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED15 / SLES15', 'SUSE (' + os_ver + ')');

if (!get_kb_item("Host/SuSE/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, 'SUSE (' + os_ver + ')', cpu);

var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLED15" && (! preg(pattern:"^(2)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED15 SP2", os_ver + " SP" + service_pack);
if (os_ver == "SLES15" && (! preg(pattern:"^(2|3)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP2/3", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'postgresql12-12.7-8.20', 'sp':'2', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-basesystem-release-15.2']},
    {'reference':'postgresql12-12.7-8.20', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-basesystem-release-15.2']},
    {'reference':'postgresql12-12.7-8.20', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-legacy-release-15.3']},
    {'reference':'postgresql12-contrib-12.7-8.20', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-legacy-release-15.3']},
    {'reference':'postgresql12-devel-12.7-8.20', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-legacy-release-15.3']},
    {'reference':'postgresql12-docs-12.7-8.20', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-legacy-release-15.3']},
    {'reference':'postgresql12-plperl-12.7-8.20', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-legacy-release-15.3']},
    {'reference':'postgresql12-plpython-12.7-8.20', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-legacy-release-15.3']},
    {'reference':'postgresql12-pltcl-12.7-8.20', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-legacy-release-15.3']},
    {'reference':'postgresql12-server-12.7-8.20', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-legacy-release-15.3']},
    {'reference':'postgresql12-server-devel-12.7-8.20', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-legacy-release-15.3']},
    {'reference':'postgresql12-contrib-12.7-8.20', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
    {'reference':'postgresql12-devel-12.7-8.20', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
    {'reference':'postgresql12-docs-12.7-8.20', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
    {'reference':'postgresql12-plperl-12.7-8.20', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
    {'reference':'postgresql12-plpython-12.7-8.20', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
    {'reference':'postgresql12-pltcl-12.7-8.20', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
    {'reference':'postgresql12-server-12.7-8.20', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']},
    {'reference':'postgresql12-server-devel-12.7-8.20', 'sp':'2', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.2']}
];

var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var exists_check = NULL;
  var rpm_spec_vers_cmp = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && _release) {
    if (exists_check) {
      var check_flag = 0;
      foreach var check (exists_check) {
        if (!rpm_exists(release:_release, rpm:check)) continue;
        check_flag++;
      }
      if (!check_flag) continue;
    }
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) 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, 'postgresql12 / postgresql12-contrib / postgresql12-devel / etc');
}