Amazon Linux 2 : postgresql, --advisory ALAS2POSTGRESQL14-2025-019 (ALASPOSTGRESQL14-2025-019)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALASPOSTGRESQL14-2025-019.
##

include('compat.inc');

if (description)
{
  script_id(261437);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/01/21");

  script_cve_id("CVE-2025-8713", "CVE-2025-8714", "CVE-2025-8715");
  script_xref(name:"IAVB", value:"2025-B-0140-S");

  script_name(english:"Amazon Linux 2 : postgresql, --advisory ALAS2POSTGRESQL14-2025-019 (ALASPOSTGRESQL14-2025-019)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of postgresql installed on the remote host is prior to 14.19-1. It is, therefore, affected by multiple
vulnerabilities as referenced in the ALAS2POSTGRESQL14-2025-019 advisory.

    PostgreSQL optimizer statistics allow a user to read sampled data within a view that the user cannot
    access.  Separately, statistics allow a user to read sampled data that a row security policy intended to
    hide.  PostgreSQL maintains statistics for tables by sampling data available in columns; this data is
    consulted during the query planning process.  Prior to this release, a user could craft a leaky operator
    that bypassed view access control lists (ACLs) and bypassed row security policies in partitioning or table
    inheritance hierarchies.  Reachable statistics data notably included histograms and most-common-values
    lists.  CVE-2017-7484 and CVE-2019-10130 intended to close this class of vulnerability, but this gap
    remained.  Versions before PostgreSQL 17.6, 16.10, 15.14, 14.19, and 13.22 are affected. (CVE-2025-8713)

    Untrusted data inclusion in pg_dump in PostgreSQL allows a malicious superuser of the origin server to
    inject arbitrary code for restore-time execution as the client operating system account running psql to
    restore the dump, via psql meta-commands.  pg_dumpall is also affected.  pg_restore is affected when used
    to generate a plain-format dump.  This is similar to MySQL CVE-2024-21096.  Versions before PostgreSQL
    17.6, 16.10, 15.14, 14.19, and 13.22 are affected. (CVE-2025-8714)

    Improper neutralization of newlines in pg_dump in PostgreSQL allows a user of the origin server to inject
    arbitrary code for restore-time execution as the client operating system account running psql to restore
    the dump, via psql meta-commands inside a purpose-crafted object name.  The same attacks can achieve SQL
    injection as a superuser of the restore target server.  pg_dumpall, pg_restore, and pg_upgrade are also
    affected.  Versions before PostgreSQL 17.6, 16.10, 15.14, 14.19, and 13.22 are affected.  Versions before
    11.20 are unaffected.  CVE-2012-0868 had fixed this class of problem, but version 11.20 reintroduced it.
    (CVE-2025-8715)

Tenable has extracted the preceding description block directly from the tested product 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://alas.aws.amazon.com//AL2/ALAS2POSTGRESQL14-2025-019.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2025-8713.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2025-8714.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2025-8715.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update postgresql' or
  or 'yum update --advisory ALAS2POSTGRESQL14-2025-019' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-8715");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/08/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/09/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/09/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-contrib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-llvmjit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-plperl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-plpython3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-pltcl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-server-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-test-rpm-macros");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-upgrade");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:postgresql-upgrade-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
  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:"Amazon Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}

include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var REPOS_FOUND = TRUE;
var extras_list = get_kb_item("Host/AmazonLinux/extras_label_list");
if (isnull(extras_list)) REPOS_FOUND = FALSE;
var repository = '"amzn2extra-postgresql14"';
if (REPOS_FOUND && (repository >!< extras_list)) exit(0, AFFECTED_REPO_NOT_ENABLED);

var pkgs = [
    {'reference':'postgresql-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-contrib-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-contrib-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-debuginfo-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-debuginfo-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-docs-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-docs-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-llvmjit-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-llvmjit-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-plperl-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-plperl-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-plpython3-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-plpython3-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-pltcl-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-pltcl-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-server-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-server-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-server-devel-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-server-devel-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-static-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-static-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-test-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-test-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-test-rpm-macros-14.19-1.amzn2.0.1', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-upgrade-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-upgrade-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-upgrade-devel-14.19-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'},
    {'reference':'postgresql-upgrade-devel-14.19-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'postgresql14'}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  var cves = 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['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['cves'])) cves = package_array['cves'];
  if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    if (rpm_check(release:_release, 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)
{
  var extra = rpm_report_get();
  if (!REPOS_FOUND) extra = rpm_report_get() + report_repo_caveat();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
  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-debuginfo / etc");
}