TencentOS Server 3: firefox (TSSA-2026:0595)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Tencent Linux Security Advisory TSSA-2026:0595.
##

include('compat.inc');

if (description)
{
  script_id(324636);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/02");

  script_cve_id(
    "CVE-2026-12289",
    "CVE-2026-12290",
    "CVE-2026-12291",
    "CVE-2026-12292",
    "CVE-2026-12294",
    "CVE-2026-12295",
    "CVE-2026-12296",
    "CVE-2026-12297",
    "CVE-2026-12298",
    "CVE-2026-12299",
    "CVE-2026-12302",
    "CVE-2026-12304",
    "CVE-2026-12305",
    "CVE-2026-12306",
    "CVE-2026-12307",
    "CVE-2026-12308",
    "CVE-2026-12309",
    "CVE-2026-12310",
    "CVE-2026-12311",
    "CVE-2026-12312",
    "CVE-2026-12313",
    "CVE-2026-12314",
    "CVE-2026-12315",
    "CVE-2026-12324",
    "CVE-2026-12325",
    "CVE-2026-12327",
    "CVE-2026-12328",
    "CVE-2026-12329",
    "CVE-2026-12330"
  );
  script_xref(name:"IAVA", value:"2026-A-0607");

  script_name(english:"TencentOS Server 3: firefox (TSSA-2026:0595)");

  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-2026:0595 advisory.

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

    CVE-2026-12289:
    Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152,
    Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12290:
    Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12,
    Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12291:
    Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR
    140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12292:
    Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152,
    Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12294:
    Sandbox escape in the DOM: Workers component. This vulnerability was fixed in Firefox 152, Firefox ESR
    140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12295:
    Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR
    140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12296:
    Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152,
    Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12297:
    Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was
    fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12298:
    Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12,
    Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12299:
    JIT miscompilation in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152, Firefox
    ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12302:
    Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR
    140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12304:
    Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox
    152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12305:
    Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12,
    Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12306:
    Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12,
    Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12307:
    Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12,
    Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12308:
    Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12,
    Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12309:
    Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12,
    Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12310:
    Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12,
    Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12311:
    Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability
    was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12312:
    Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12,
    Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12313:
    Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability
    was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12314:
    Memory safety bug fixed in Firefox 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12,
    Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12315:
    Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 152, Firefox ESR
    140.12, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12324:
    Incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in
    Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12325:
    Denial-of-service in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 152,
    Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12327:
    Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151.
    Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of
    these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 152,
    Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12328:
    Memory safety bugs present in Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151
    and Thunderbird 151. Some of these bugs showed evidence of memory corruption and we presume that with
    enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed
    in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.

    CVE-2026-12329:
    Memory safety bug fixed in Thunderbird ESR 140.12. This vulnerability was fixed in Firefox ESR 140.12 and
    Thunderbird 140.12.

    CVE-2026-12330:
    Incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in
    Firefox ESR 140.12, Firefox ESR 115.37, and Thunderbird 140.12.

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-20260595.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:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-12297");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-12315");

  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:"2026/06/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/02");

  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-140.12.0-1.tl3.ap.1', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-140.12.0-1.tl3.ap.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debuginfo-140.12.0-1.tl3.ap.1', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debuginfo-140.12.0-1.tl3.ap.1', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debugsource-140.12.0-1.tl3.ap.1', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
      {'reference':'firefox-debugsource-140.12.0-1.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');
}