AlmaLinux 9.2 [TuxCare] Security Update: ant / ant-antlr / ant-apache-bcel / ant-apache-bsf / ant-apache-oro / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1782225575)

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

include('compat.inc');

if (description)
{
  script_id(352133);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/30");

  script_cve_id("CVE-2021-36373", "CVE-2021-36374");
  script_xref(name:"CLSA", value:"2026:1782225575");

  script_name(english:"AlmaLinux 9.2 [TuxCare] Security Update: ant / ant-antlr / ant-apache-bcel / ant-apache-bsf / ant-apache-oro / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1782225575)");

  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-2026:1782225575 advisory.

  - When reading a specially crafted TAR archive an Apache Ant build can be made to allocate large amounts of
    memory that finally leads to an out of memory error, even for small inputs. This can be used to disrupt
    builds using Apache Ant. Apache Ant prior to 1.9.16 and 1.10.11 were affected. (CVE-2021-36373)

  - When reading a specially crafted ZIP archive, or a derived formats, an Apache Ant build can be made to
    allocate large amounts of memory that leads to an out of memory error, even for small inputs. This can be
    used to disrupt builds using Apache Ant. Commonly used derived formats from ZIP archives are for instance
    JAR files and many office files. Apache Ant prior to 1.9.16 and 1.10.11 were affected. (CVE-2021-36374)

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/2026/clsa-2026_1782225575.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7f95bb42");
  script_set_attribute(attribute:"see_also", value:"https://cve.tuxcare.com/els/releases/CLSA-2026:1782225575");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages based on the guidance in TuxCare advisory ALMALINUX9.2:CLSA-2026:1782225575.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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-2021-36374");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/07/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/30");

  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 ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);


var constraints = [
  {
    'release': '9',
    'sp': '2',
    'pkgs': [
      {'reference':'ant-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-antlr-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-apache-bcel-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-apache-bsf-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-apache-oro-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-apache-regexp-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-apache-resolver-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-apache-xalan2-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-commons-logging-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-commons-net-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-imageio-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-javadoc-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-javamail-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-jdepend-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-jmf-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-jsch-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-junit-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-junit5-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-lib-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-manual-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-swing-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-testutil-1.10.9-7.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'ant-xz-1.10.9-7.el9.tuxcare.els1', 'sp':'2', '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, 'ant / ant-antlr / ant-apache-bcel / ant-apache-bsf / ant-apache-oro / etc');
}