Fedora 43 : cef (2026-a67eba175f)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
# The descriptive text and package checks in this plugin were
# extracted from Fedora Security Advisory FEDORA-2026-a67eba175f
#

include('compat.inc');

if (description)
{
  script_id(305669);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/09");

  script_cve_id(
    "CVE-2026-3909",
    "CVE-2026-3910",
    "CVE-2026-3913",
    "CVE-2026-3914",
    "CVE-2026-3915",
    "CVE-2026-3916",
    "CVE-2026-3917",
    "CVE-2026-3918",
    "CVE-2026-3919",
    "CVE-2026-3920",
    "CVE-2026-3921",
    "CVE-2026-3922",
    "CVE-2026-3923",
    "CVE-2026-3924",
    "CVE-2026-3925",
    "CVE-2026-3926",
    "CVE-2026-3927",
    "CVE-2026-3928",
    "CVE-2026-3929",
    "CVE-2026-3930",
    "CVE-2026-3931",
    "CVE-2026-3932",
    "CVE-2026-3934",
    "CVE-2026-3935",
    "CVE-2026-3936",
    "CVE-2026-3937",
    "CVE-2026-3938",
    "CVE-2026-3939",
    "CVE-2026-3940",
    "CVE-2026-3941",
    "CVE-2026-3942",
    "CVE-2026-4439",
    "CVE-2026-4440",
    "CVE-2026-4441",
    "CVE-2026-4442",
    "CVE-2026-4443",
    "CVE-2026-4444",
    "CVE-2026-4445",
    "CVE-2026-4446",
    "CVE-2026-4447",
    "CVE-2026-4448",
    "CVE-2026-4449",
    "CVE-2026-4450",
    "CVE-2026-4451",
    "CVE-2026-4452",
    "CVE-2026-4453",
    "CVE-2026-4454",
    "CVE-2026-4455",
    "CVE-2026-4456",
    "CVE-2026-4457",
    "CVE-2026-4458",
    "CVE-2026-4459",
    "CVE-2026-4460",
    "CVE-2026-4461",
    "CVE-2026-4462",
    "CVE-2026-4463",
    "CVE-2026-4464",
    "CVE-2026-4673",
    "CVE-2026-4674",
    "CVE-2026-4675",
    "CVE-2026-4676",
    "CVE-2026-4677",
    "CVE-2026-4678",
    "CVE-2026-4679",
    "CVE-2026-4680"
  );
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2026/03/27");
  script_xref(name:"FEDORA", value:"2026-a67eba175f");

  script_name(english:"Fedora 43 : cef (2026-a67eba175f)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Fedora host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the
FEDORA-2026-a67eba175f advisory.

    Update to cef-146.0.9+g3ca6a87 + chromium 146.0.7680.164

    * High CVE-2026-4673: Heap buffer overflow in WebAudio
    * High CVE-2026-4674: Out of bounds read in CSS
    * High CVE-2026-4675: Heap buffer overflow in WebGL
    * High CVE-2026-4676: Use after free in Dawn
    * High CVE-2026-4677: Out of bounds read in WebAudio
    * High CVE-2026-4678: Use after free in WebGPU
    * High CVE-2026-4679: Integer overflow in Fonts
    * High CVE-2026-4680: Use after free in FedCM
    * CVE-2026-4439: Out of bounds memory access in WebGL
    * CVE-2026-4440: Out of bounds read and write in WebGL
    * CVE-2026-4441: Use after free in Base
    * CVE-2026-4442: Heap buffer overflow in CSS
    * CVE-2026-4443: Heap buffer overflow in WebAudio
    * CVE-2026-4444: Stack buffer overflow in WebRTC
    * CVE-2026-4445: Use after free in WebRTC
    * CVE-2026-4446: Use after free in WebRTC
    * CVE-2026-4447: Inappropriate implementation in V8
    * CVE-2026-4448: Heap buffer overflow in ANGLE
    * CVE-2026-4449: Use after free in Blink
    * CVE-2026-4450: Out of bounds write in V8
    * CVE-2026-4451: Insufficient validation of untrusted input in Navigation
    * CVE-2026-4452: Integer overflow in ANGLE
    * CVE-2026-4453: Integer overflow in Dawn
    * CVE-2026-4454: Use after free in Network
    * CVE-2026-4455: Heap buffer overflow in PDFium
    * CVE-2026-4456: Use after free in Digital Credentials API
    * CVE-2026-4457: Type Confusion in V8
    * CVE-2026-4458: Use after free in Extensions
    * CVE-2026-4459: Out of bounds read and write in WebAudio
    * CVE-2026-4460: Out of bounds read in Skia
    * CVE-2026-4461: Inappropriate implementation in V8
    * CVE-2026-4462: Out of bounds read in Blink
    * CVE-2026-4463: Heap buffer overflow in WebRTC
    * CVE-2026-4464: Integer overflow in ANGLE
    * CVE-2026-3909: Out of bounds write in Ski
    * CVE-2026-3909: Out of bounds write in Skia
    * CVE-2026-3910: Inappropriate implementation in V8
    * CVE-2026-3913: Heap buffer overflow in WebML
    * CVE-2026-3914: Integer overflow in WebML
    * CVE-2026-3915: Heap buffer overflow in WebML
    * CVE-2026-3916: Out of bounds read in Web Speech
    * CVE-2026-3917: Use after free in Agents
    * CVE-2026-3909: Out of bounds write in Skia
    * CVE-2026-3910: Inappropriate implementation in V8
    * CVE-2026-3913: Heap buffer overflow in WebML
    * CVE-2026-3914: Integer overflow in WebML
    * CVE-2026-3915: Heap buffer overflow in WebML
    * CVE-2026-3916: Out of bounds read in Web Speech
    * CVE-2026-3917: Use after free in Agents
    * CVE-2026-3918: Use after free in WebMCP
    * CVE-2026-3919: Use after free in Extensions
    * CVE-2026-3920: Out of bounds memory access in WebML
    * CVE-2026-3921: Use after free in TextEncoding
    * CVE-2026-3922: Use after free in MediaStream
    * CVE-2026-3923: Use after free in WebMIDI
    * CVE-2026-3924: Use after free in WindowDialog
    * CVE-2026-3925: Incorrect security UI in LookalikeChecks
    * CVE-2026-3926: Out of bounds read in V8
    * CVE-2026-3927: Incorrect security UI in PictureInPicture
    * CVE-2026-3928: Insufficient policy enforcement in Extensions
    * CVE-2026-3929: Side-channel information leakage in ResourceTiming
    * CVE-2026-3930: Unsafe navigation in Navigation
    * CVE-2026-3931: Heap buffer overflow in Skia
    * CVE-2026-3932: Insufficient policy enforcement in PDF
    * CVE-2026-3934: Insufficient policy enforcement in ChromeDriver
    * CVE-2026-3935: Incorrect security UI in WebAppInstalls
    * CVE-2026-3936: Use after free in WebView
    * CVE-2026-3937: Incorrect security UI in Downloads
    * CVE-2026-3938: Insufficient policy enforcement in Clipboard
    * CVE-2026-3939: Insufficient policy enforcement in PDF
    * CVE-2026-3940: Insufficient policy enforcement in DevTools
    * CVE-2026-3941: Insufficient policy enforcement in DevTools
    * CVE-2026-3942: Incorrect security UI in PictureInPicture

Tenable has extracted the preceding description block directly from the Fedora 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://bodhi.fedoraproject.org/updates/FEDORA-2026-a67eba175f");
  script_set_attribute(attribute:"solution", value:
"Update the affected cef package.");
  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:F/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:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-4442");

  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:"2026/03/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/03/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/04/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:43");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:cef");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Fedora 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_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  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) || 'Fedora' >!< os_product) audit(AUDIT_OS_NOT, 'Fedora');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'Fedora');
if (! preg(pattern:"^43([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'Fedora 43', 'Fedora ' + os_version);

if (!get_kb_item('Host/RedHat/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, 'Fedora', cpu);

var constraints = [
  {
    'release': '43',
    'pkgs': [
      {'reference':'cef-146.0.9^chromium146.0.7680.164-1.fc43', '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, 'cef');
}