AlmaLinux 9.2 [TuxCare] Security Update: webkit2gtk3 / webkit2gtk3-devel / webkit2gtk3-jsc / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1784988522)

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

include('compat.inc');

if (description)
{
  script_id(351934);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/01");

  script_cve_id(
    "CVE-2024-4367",
    "CVE-2026-39872",
    "CVE-2026-43663",
    "CVE-2026-43676",
    "CVE-2026-43699",
    "CVE-2026-43701",
    "CVE-2026-43705",
    "CVE-2026-43707",
    "CVE-2026-43712",
    "CVE-2026-43713",
    "CVE-2026-43715",
    "CVE-2026-43716",
    "CVE-2026-43720",
    "CVE-2026-43721",
    "CVE-2026-43725",
    "CVE-2026-43726",
    "CVE-2026-43727",
    "CVE-2026-43731",
    "CVE-2026-43732",
    "CVE-2026-43734",
    "CVE-2026-43740",
    "CVE-2026-43742",
    "CVE-2026-43745"
  );
  script_xref(name:"CLSA", value:"2026:1784988522");

  script_name(english:"AlmaLinux 9.2 [TuxCare] Security Update: webkit2gtk3 / webkit2gtk3-devel / webkit2gtk3-jsc / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1784988522)");

  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-2026:1784988522 advisory.

  - A type check was missing when handling fonts in PDF.js, which would allow arbitrary JavaScript execution
    in the PDF.js context. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird <
    115.11. (CVE-2024-4367)

  - The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5.2, iOS 18.7.10
    and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS
    26.6. Processing maliciously crafted web content may lead to an unexpected process crash. (CVE-2026-39872,
    CVE-2026-43663)

  - An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in Safari
    26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, visionOS 26.6,
    watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.
    (CVE-2026-43676)

  - A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari
    26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6,
    visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process
    crash. (CVE-2026-43699, CVE-2026-43726, CVE-2026-43734, CVE-2026-43742)

  - The issue was addressed with improved checks. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS
    18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. A
    malicious website may be able to process restricted web content outside the sandbox. (CVE-2026-43701)

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_1784988522.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d9a3b204");
  script_set_attribute(attribute:"see_also", value:"https://cve.tuxcare.com/els/releases/CLSA-2026:1784988522");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages based on the guidance in TuxCare advisory ALMALINUX9.2:CLSA-2026:1784988522.");
  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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-4367");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/05/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/25");
  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) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);


var constraints = [
  {
    'release': '9',
    'sp': '2',
    'pkgs': [
      {'reference':'webkit2gtk3-2.52.5-1.el9.tuxcare.els10', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'webkit2gtk3-devel-2.52.5-1.el9.tuxcare.els10', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'webkit2gtk3-jsc-2.52.5-1.el9.tuxcare.els10', 'sp':'2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'webkit2gtk3-jsc-devel-2.52.5-1.el9.tuxcare.els10', 'sp':'2', 'cpu':'x86_64', '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_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, 'webkit2gtk3 / webkit2gtk3-devel / webkit2gtk3-jsc / etc');
}