AlmaLinux 9.2 [TuxCare] Security Update: ruby / ruby-default-gems / ruby-devel / ruby-doc / ruby-libs / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1758022908)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(361943);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/02");

  script_cve_id("CVE-2024-39908", "CVE-2024-43398");
  script_xref(name:"CLSA", value:"2025:1758022908");

  script_name(english:"AlmaLinux 9.2 [TuxCare] Security Update: ruby / ruby-default-gems / ruby-devel / ruby-doc / ruby-libs / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2025:1758022908)");

  script_set_attribute(attribute:"synopsis", value:
"The AlmaLinux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare
ALMALINUX9.2:CLSA-2025:1758022908 advisory.

  - REXML is an XML toolkit for Ruby. The REXML gem before 3.3.1 has some DoS vulnerabilities when it parses
    an XML that has many specific characters such as `<`, `0` and `%>`. If you need to parse untrusted XMLs,
    you many be impacted to these vulnerabilities. The REXML gem 3.3.2 or later include the patches to fix
    these vulnerabilities. Users are advised to upgrade. Users unable to upgrade should avoid parsing
    untrusted XML strings. (CVE-2024-39908)

  - REXML is an XML toolkit for Ruby. The REXML gem before 3.3.6 has a DoS vulnerability when it parses an XML
    that has many deep elements that have same local name attributes. If you need to parse untrusted XMLs with
    tree parser API like REXML::Document.new, you may be impacted to this vulnerability. If you use other
    parser APIs such as stream parser API and SAX2 parser API, this vulnerability is not affected. The REXML
    gem 3.3.6 or later include the patch to fix the vulnerability. (CVE-2024-43398)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://security.tuxcare.com/csaf/v2/els_os/almalinux9.2esu/advisories/2025/clsa-2025_1758022908.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ca366554");
  script_set_attribute(attribute:"see_also", value:"https://cve.tuxcare.com/els/releases/CLSA-2025:1758022908");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages based on the guidance in TuxCare advisory ALMALINUX9.2:CLSA-2025:1758022908.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:N/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:H/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-43398");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/07/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/09/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

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

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/OS/extended-third-party", "Host/local_checks_enabled", "Host/AlmaLinux/release", "Host/AlmaLinux/rpm-list", "Host/cpu");

  exit(0);
}
include('rpm2.inc');

var third_party_support = get_kb_item('Host/OS/extended-third-party');
if (empty_or_null(third_party_support) || third_party_support != 'TuxCare') exit(0, 'TuxCare support not enabled.');

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) || 'AlmaLinux' >!< os_product) audit(AUDIT_OS_NOT, 'AlmaLinux');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'AlmaLinux');
if (! preg(pattern:"^9.2([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'AlmaLinux 9.2', 'AlmaLinux ' + os_version);

if (!get_kb_item('Host/AlmaLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);


var constraints = [
  {
    'release': '9',
    'sp': '2',
    'pkgs': [
      {'reference':'ruby-3.0.4-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'i686', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-3.0.4-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-default-gems-3.0.4-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-devel-3.0.4-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'i686', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-devel-3.0.4-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-doc-3.0.4-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-libs-3.0.4-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'i686', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ruby-libs-3.0.4-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bigdecimal-3.0.0-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'i686', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bigdecimal-3.0.0-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-bundler-2.2.33-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-io-console-0.5.7-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'i686', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-io-console-0.5.7-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-irb-1.3.5-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-json-2.5.1-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'i686', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-json-2.5.1-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-minitest-5.14.2-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-power_assert-1.2.0-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-psych-3.3.2-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'i686', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-psych-3.3.2-160.el9_0.tuxcare.els8', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-rake-13.0.3-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-rbs-1.4.0-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-rdoc-6.3.3-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-rexml-3.3.3-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-rss-0.2.9-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-test-unit-3.3.7-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygem-typeprof-0.15.2-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygems-3.2.33-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rubygems-devel-3.2.33-160.el9_0.tuxcare.els8', 'sp':'2', 'el_string':'el9_0', '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, 'ruby / ruby-default-gems / ruby-devel / ruby-doc / ruby-libs / etc');
}