TencentOS Server 3: firefox (TSSA-2026:1336)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Tencent Linux Security Advisory TSSA-2026:1336.
##

include('compat.inc');

if (description)
{
  script_id(375724);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/11/04");

  script_cve_id(
    "CVE-2026-45186",
    "CVE-2026-109704",
    "CVE-2026-109705",
    "CVE-2026-109706",
    "CVE-2026-109707",
    "CVE-2026-109708",
    "CVE-2026-109709",
    "CVE-2026-109711",
    "CVE-2026-109712",
    "CVE-2026-109713",
    "CVE-2026-109715",
    "CVE-2026-109716",
    "CVE-2026-109717",
    "CVE-2026-109718",
    "CVE-2026-109719",
    "CVE-2026-109720",
    "CVE-2026-109721",
    "CVE-2026-109722",
    "CVE-2026-109723",
    "CVE-2026-109724",
    "CVE-2026-109725",
    "CVE-2026-109726",
    "CVE-2026-109727",
    "CVE-2026-109728",
    "CVE-2026-109729",
    "CVE-2026-109730",
    "CVE-2026-109732",
    "CVE-2026-109733",
    "CVE-2026-109736",
    "CVE-2026-109737",
    "CVE-2026-109738",
    "CVE-2026-109740",
    "CVE-2026-109741",
    "CVE-2026-109742",
    "CVE-2026-109743",
    "CVE-2026-109744",
    "CVE-2026-109745",
    "CVE-2026-109751",
    "CVE-2026-109752",
    "CVE-2026-109753",
    "CVE-2026-109782"
  );
  script_xref(name:"IAVA", value:"2026-A-1136-S");

  script_name(english:"TencentOS Server 3: firefox (TSSA-2026:1336)");

  script_set_attribute(attribute:"synopsis", value:
"The remote TencentOS Server 3 host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is,
therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:1336 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

    CVE-2026-45186:
    A flaw was found in libexpat. When processing a specially crafted XML input containing a specific pattern
    of attributes, the parsing time increases quadratically due to checks for attribute name collisions. This
    consumes excessive CPU resources and eventually results in a denial of service.

    CVE-2026-109704:
    A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the
    following issue:
    Privilege escalation in the Application Update component

    CVE-2026-109705:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the
    Networking component

    CVE-2026-109706:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the Storage: IndexedDB component

    CVE-2026-109707:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Sandbox escape due to use-after-free in the Networking component

    CVE-2026-109708:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Sandbox escape due to incorrect boundary conditions in the Networking component

    CVE-2026-109709:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Information disclosure, privilege escalation in the Security: Process Sandboxing component

    CVE-2026-109711:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the Graphics: Canvas2D component

    CVE-2026-109712:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Sandbox escape due to uninitialized memory in the Graphics component

    CVE-2026-109713:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the Crash Reporting component

    CVE-2026-109715:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Incorrect boundary conditions in the JavaScript Engine component

    CVE-2026-109716:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Incorrect boundary conditions in the JavaScript Engine component

    CVE-2026-109717:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the DOM: Bindings (WebIDL) component

    CVE-2026-109718:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the XML component

    CVE-2026-109719:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Race condition, use-after-free in the Graphics: CanvasWebGL component

    CVE-2026-109720:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    JIT miscompilation in the JavaScript: WebAssembly component

    CVE-2026-109721:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Incorrect boundary conditions in the JavaScript Engine: JIT component

    CVE-2026-109722:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    JIT miscompilation in the JavaScript Engine: JIT component

    CVE-2026-109723:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Integer overflow in the Layout: Text and Fonts component

    CVE-2026-109724:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the DOM: Core & HTML component

    CVE-2026-109725:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the DOM: Core & HTML component

    CVE-2026-109726:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the SVG component

    CVE-2026-109727:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the Audio/Video component

    CVE-2026-109728:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the DOM: Animation component

    CVE-2026-109729:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the JavaScript Engine: JIT component

    CVE-2026-109730:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Integer overflow in the Graphics component

    CVE-2026-109732:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the DOM: Streams component

    CVE-2026-109733:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    JIT miscompilation in the JavaScript Engine: JIT component

    CVE-2026-109736:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Frame poisoning in the Layout component

    CVE-2026-109737:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Mitigation bypass in the Enterprise Policies component

    CVE-2026-109738:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the Audio/Video: Playback component

    CVE-2026-109740:
    A flaw was found in Firefox. Incorrect boundary condition handling in the Win32 widget component allows an
    attacker to escape the browser's restricted sandbox environment. An attacker who has compromised a
    sandboxed content process could exploit this vulnerability to achieve privilege escalation and execute
    arbitrary code on the underlying operating system.

    CVE-2026-109741:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the Storage: Bucket File System component

    CVE-2026-109742:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Information disclosure in the PDF Viewer component

    CVE-2026-109743:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Privilege escalation in the Panning and Zooming component

    CVE-2026-109744:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Other issue in the DOM: File component

    CVE-2026-109745:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Sandbox escape due to uninitialized memory in the DOM: Web Serial component

    CVE-2026-109751:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Information disclosure in the Networking component

    CVE-2026-109752:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Use-after-free in the DOM: Workers component

    CVE-2026-109753:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Incorrect boundary conditions in the Layout component

    CVE-2026-109782:
    A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue:
    Mitigation bypass in the File Handling component

Tenable has extracted the preceding description block directly from the Tencent 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://mirrors.tencent.com/tlinux/errata/tssa-20261336.xml");
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-45186");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/05/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/11/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:tencent:tencentos_server:3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:firefox");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tencent 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/local_checks_enabled", "Host/etc/os-release", "Host/TencentOS/rpm-list", "Host/cpu");

  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) || 'TencentOS' >!< os_product) audit(AUDIT_OS_NOT, 'TencentOS');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'TencentOS');
if (! preg(pattern:"^3([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'TencentOS 3.x', 'TencentOS ' + os_version);

if (!get_kb_item('Host/TencentOS/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, 'TencentOS', cpu);

var constraints = [
  {
    'release': '3',
    'pkgs': [
      {'reference':'firefox-153.5.0-1.tl3.ap.1', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-153.5.0-1.tl3.ap.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debuginfo-153.5.0-1.tl3.ap.1', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debuginfo-153.5.0-1.tl3.ap.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debugsource-153.5.0-1.tl3.ap.1', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debugsource-153.5.0-1.tl3.ap.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':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, 'firefox / firefox-debuginfo / firefox-debugsource');
}