Oracle Linux 8 : bind9.16 (ELSA-2024-5390)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2024-5390.
##

include('compat.inc');

if (description)
{
  script_id(205537);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/09/11");

  script_cve_id("CVE-2024-1737", "CVE-2024-1975", "CVE-2024-4076");

  script_name(english:"Oracle Linux 8 : bind9.16 (ELSA-2024-5390)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2024-5390 advisory.

    - Minor fix of reclimit test backport (CVE-2024-1737)
    - Backport addition of max-records-per-type and max-records-per-type options
      (CVE-2024-1737)
    - Resolve CVE-2024-1975
    - Resolve CVE-2024-1737
    - Resolve CVE-2024-4076
    - Prevent crashing at masterformat system test (CVE-2023-6516)
    - Prevent increased CPU load on large DNS messages (CVE-2023-4408)
    - Prevent assertion failure when nxdomain-redirect is used with
     RFC 1918 reverse zones (CVE-2023-5517)
    - Prevent assertion failure if DNS64 and serve-stale is used (CVE-2023-5679)
    - Specific recursive query patterns may lead to an out-of-memory
      condition (CVE-2023-6516)
    - Prevent increased CPU consumption in DNSSEC validator (CVE-2023-50387
      CVE-2023-50868)

Tenable has extracted the preceding description block directly from the Oracle 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://linux.oracle.com/errata/ELSA-2024-5390.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  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:N/UI:N/S:U/C:N/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-2024-1975");

  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:"2024/07/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/08/14");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind9.16");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind9.16-chroot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind9.16-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind9.16-dnssec-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind9.16-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind9.16-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind9.16-license");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:bind9.16-utils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-bind9.16");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2024-2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  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) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_product)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
if (! preg(pattern:"^8([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'Oracle Linux 8.x', 'Oracle Linux ' + os_version);

if (!get_kb_item('Host/RedHat/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$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

var constraints = [
  {
    'release': '8',
    'pkgs': [
      {'reference':'bind9.16-9.16.23-0.22.el8_10', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-chroot-9.16.23-0.22.el8_10', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-devel-9.16.23-0.22.el8_10', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-dnssec-utils-9.16.23-0.22.el8_10', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-doc-9.16.23-0.22.el8_10', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-libs-9.16.23-0.22.el8_10', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-license-9.16.23-0.22.el8_10', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-utils-9.16.23-0.22.el8_10', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'python3-bind9.16-9.16.23-0.22.el8_10', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-devel-9.16.23-0.22.el8_10', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-dnssec-utils-9.16.23-0.22.el8_10', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-doc-9.16.23-0.22.el8_10', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-libs-9.16.23-0.22.el8_10', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-license-9.16.23-0.22.el8_10', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-utils-9.16.23-0.22.el8_10', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'python3-bind9.16-9.16.23-0.22.el8_10', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-9.16.23-0.22.el8_10', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-chroot-9.16.23-0.22.el8_10', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-devel-9.16.23-0.22.el8_10', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-dnssec-utils-9.16.23-0.22.el8_10', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-doc-9.16.23-0.22.el8_10', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-libs-9.16.23-0.22.el8_10', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-license-9.16.23-0.22.el8_10', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'bind9.16-utils-9.16.23-0.22.el8_10', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'},
      {'reference':'python3-bind9.16-9.16.23-0.22.el8_10', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'32'}
    ]
  }
];

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_HOLE,
      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, 'bind9.16 / bind9.16-chroot / bind9.16-devel / etc');
}