TencentOS Server 3: firefox (TSSA-2026:1215)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Tencent Linux Security Advisory TSSA-2026:1215.
##

include('compat.inc');

if (description)
{
  script_id(372234);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/27");

  script_cve_id(
    "CVE-2026-92005",
    "CVE-2026-92006",
    "CVE-2026-92007",
    "CVE-2026-92008",
    "CVE-2026-92009",
    "CVE-2026-92010",
    "CVE-2026-92011",
    "CVE-2026-92012",
    "CVE-2026-92013",
    "CVE-2026-92014",
    "CVE-2026-92015",
    "CVE-2026-92016",
    "CVE-2026-92017",
    "CVE-2026-92018",
    "CVE-2026-92019",
    "CVE-2026-92020",
    "CVE-2026-92021",
    "CVE-2026-92022",
    "CVE-2026-92023",
    "CVE-2026-92024",
    "CVE-2026-92025",
    "CVE-2026-92026",
    "CVE-2026-92027",
    "CVE-2026-92028",
    "CVE-2026-92029",
    "CVE-2026-92030",
    "CVE-2026-92031",
    "CVE-2026-92032"
  );
  script_xref(name:"IAVA", value:"2026-A-1014-S");

  script_name(english:"TencentOS Server 3: firefox (TSSA-2026:1215)");

  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-2026:1215 advisory.

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

    CVE-2026-92005:
    Use-after-free in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 156,
    Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92006:
    Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This
    vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,
    Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92007:
    Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This
    vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,
    Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92008:
    Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This
    vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,
    Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92009:
    Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This
    vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,
    Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92010:
    Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This
    vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,
    Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92011:
    Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This
    vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,
    Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92012:
    Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This
    vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,
    Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92013:
    Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This
    vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,
    Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92014:
    Privilege escalation due to incorrect boundary conditions in the Graphics component. This vulnerability
    was fixed in Firefox ESR 115.41, Firefox ESR 140.16, and Thunderbird 140.16.

    CVE-2026-92015:
    Privilege escalation in the WebExtensions component. This vulnerability was fixed in Firefox 156, Firefox
    ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird
    153.3.

    CVE-2026-92016:
    Use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 156,
    Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92017:
    Privilege escalation in the DOM: Service Workers component. This vulnerability was fixed in Firefox 156,
    Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and
    Thunderbird 153.3.

    CVE-2026-92018:
    Sandbox escape in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 156, Firefox ESR
    115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92019:
    Mitigation bypass in the Remote Settings Client component. This vulnerability was fixed in Firefox 156,
    Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and
    Thunderbird 153.3.

    CVE-2026-92020:
    Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component. This
    vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3,
    Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92021:
    Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox ESR 140.16
    and Thunderbird 140.16.

    CVE-2026-92022:
    Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 156, Firefox ESR
    115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92023:
    Use-after-free in the XML component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41,
    Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92024:
    Use-after-free in the SVG component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41,
    Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92025:
    Use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 156, Firefox ESR
    115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92026:
    Use-after-free in the Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR
    140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92027:
    Use-after-free in the DOM: Streams component. This vulnerability was fixed in Firefox 156, Firefox ESR
    115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92028:
    Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 156, Firefox ESR
    115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92029:
    Use-after-free in the SVG component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41,
    Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92030:
    Mitigation bypass in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in
    Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird
    153.3.

    CVE-2026-92031:
    Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 156,
    Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

    CVE-2026-92032:
    Sandbox escape due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox
    156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.

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-20261215.xml");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/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-2026-92032");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/09/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/27");

  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-140.16.0-1.tl3.ap.1', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-140.16.0-1.tl3.ap.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debuginfo-140.16.0-1.tl3.ap.1', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debuginfo-140.16.0-1.tl3.ap.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debugsource-140.16.0-1.tl3.ap.1', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debugsource-140.16.0-1.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');
}