AlmaLinux 9.2 [TuxCare] Security Update: java-1.8.0-openjdk / java-1.8.0-openjdk-demo / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1787735855)

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

include('compat.inc');

if (description)
{
  script_id(360800);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/07");

  script_cve_id(
    "CVE-2026-22003",
    "CVE-2026-22695",
    "CVE-2026-60589",
    "CVE-2026-61308",
    "CVE-2026-70907"
  );
  script_xref(name:"CLSA", value:"2026:1787735855");

  script_name(english:"AlmaLinux 9.2 [TuxCare] Security Update: java-1.8.0-openjdk / java-1.8.0-openjdk-demo / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1787735855)");

  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-2026:1787735855 advisory.

  - Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE
    (component: Hotspot). Supported versions that are affected are Oracle Java SE: 8u481 and 8u481-b50; Oracle
    GraalVM Enterprise Edition: 21.3.17. Difficult to exploit vulnerability allows low privileged attacker
    with logon to the infrastructure where Oracle Java SE, Oracle GraalVM Enterprise Edition executes to
    compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks require human interaction
    from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized
    creation, deletion or modification access to critical data or all Oracle Java SE, Oracle GraalVM
    Enterprise Edition accessible data and unauthorized ability to cause a hang or frequently repeatable crash
    (complete DOS) of Oracle Java SE, Oracle GraalVM Enterprise Edition. Note: This vulnerability applies to
    Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java
    applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java
    sandbox for security. This vulnerability does not apply to Java deployments, typically in servers, that
    load and run only trusted code (e.g., code installed by an administrator). (CVE-2026-22003)

  - LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable
    Network Graphics) raster image files. From 1.6.51 to 1.6.53, there is a heap buffer over-read in the
    libpng simplified API function png_image_finish_read when processing interlaced 16-bit PNGs with 8-bit
    output format and non-minimal row stride. This is a regression introduced by the fix for CVE-2025-65018.
    This vulnerability is fixed in 1.6.54. (CVE-2026-22695)

  - Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of
    Oracle Java SE (component: Security). Supported versions that are affected are Oracle Java SE: 8u501,
    11.0.32, 17.0.20, 21.0.12, 25.0.4, 26.0.2; Oracle GraalVM for JDK: 17.0.20 and 21.0.12; Oracle GraalVM
    Enterprise Edition: 21.3.19. Difficult to exploit vulnerability allows unauthenticated attacker with
    network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM
    Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized read access to a
    subset of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note:
    This vulnerability can only be exploited by supplying data to APIs in the specified Component without
    using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service.
    (CVE-2026-60589)

  - Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of
    Oracle Java SE (component: Networking). Supported versions that are affected are Oracle Java SE: 8u501,
    11.0.32, 17.0.20, 21.0.12, 25.0.4, 26.0.2; Oracle GraalVM for JDK: 17.0.20 and 21.0.12; Oracle GraalVM
    Enterprise Edition: 21.3.19. Difficult to exploit vulnerability allows unauthenticated attacker with
    network access via HTTP to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise
    Edition. While the vulnerability is in Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise
    Edition, attacks may significantly impact additional products (scope change). Successful attacks of this
    vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE,
    Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be
    exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the
    APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web
    Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from
    the internet) and rely on the Java sandbox for security. (CVE-2026-61308)

  - Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of
    Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE: 8u501, 11.0.32,
    17.0.20, 21.0.12, 25.0.4, 26.0.2; Oracle GraalVM for JDK: 17.0.20 and 21.0.12; Oracle GraalVM Enterprise
    Edition: 21.3.19. Easily exploitable vulnerability allows unauthenticated attacker with network access via
    TLS to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful
    attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service
    (partial DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Note: This
    vulnerability can only be exploited by supplying data to APIs in the specified Component without using
    Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service.
    (CVE-2026-70907)

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_1787735855.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ddd16ef5");
  script_set_attribute(attribute:"see_also", value:"https://cve.tuxcare.com/els/releases/CLSA-2026:1787735855");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages based on the guidance in TuxCare advisory ALMALINUX9.2:CLSA-2026:1787735855.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/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:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/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-2026-22695");

  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:"2026/08/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/26");
  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 ('aarch64' >!< cpu && cpu !~ "^i[3-6]86$" && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);


var constraints = [
  {
    'release': '9',
    'sp': '2',
    'pkgs': [
      {'reference':'java-1.8.0-openjdk-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-demo-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-demo-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-demo-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-demo-fastdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-demo-fastdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-demo-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-demo-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-demo-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-devel-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-devel-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-devel-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-devel-fastdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-devel-fastdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-devel-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-devel-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-devel-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-fastdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-fastdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-headless-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-headless-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-headless-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-headless-fastdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-headless-fastdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-headless-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-headless-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-headless-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-javadoc-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-javadoc-zip-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-src-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-src-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-src-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-src-fastdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-src-fastdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-src-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-src-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'i686', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'},
      {'reference':'java-1.8.0-openjdk-src-slowdebug-1.8.0.504.b01-1.el9.tuxcare.els1', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'epoch':'1'}
    ]
  }
];

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, 'java-1.8.0-openjdk / java-1.8.0-openjdk-demo / etc');
}