AlmaLinux 9 : webkit2gtk3 (ALSA-2026:69098)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# AlmaLinux Security Advisory ALSA-2026:69098.
##

include('compat.inc');

if (description)
{
  script_id(348734);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/09/22");

  script_cve_id(
    "CVE-2026-19154",
    "CVE-2026-19161",
    "CVE-2026-19173",
    "CVE-2026-19176",
    "CVE-2026-28984",
    "CVE-2026-43795",
    "CVE-2026-43804",
    "CVE-2026-64713",
    "CVE-2026-64715",
    "CVE-2026-64718",
    "CVE-2026-64728",
    "CVE-2026-64730",
    "CVE-2026-64753",
    "CVE-2026-64757",
    "CVE-2026-64778",
    "CVE-2026-64779",
    "CVE-2026-64780",
    "CVE-2026-64782",
    "CVE-2026-64783",
    "CVE-2026-64784",
    "CVE-2026-64787",
    "CVE-2026-65331",
    "CVE-2026-65332",
    "CVE-2026-65334",
    "CVE-2026-65335",
    "CVE-2026-65336",
    "CVE-2026-65337",
    "CVE-2026-65338",
    "CVE-2026-65340",
    "CVE-2026-65341",
    "CVE-2026-65351",
    "CVE-2026-76041",
    "CVE-2026-78376",
    "CVE-2026-79020",
    "CVE-2026-83596",
    "CVE-2026-84359",
    "CVE-2026-84635"
  );
  script_xref(name:"ALSA", value:"2026:69098");
  script_xref(name:"IAVA", value:"2026-A-0819-S");
  script_xref(name:"IAVA", value:"2026-A-0869-S");
  script_xref(name:"IAVA", value:"2026-A-0927-S");
  script_xref(name:"RHSA", value:"2026:69098");

  script_name(english:"AlmaLinux 9 : webkit2gtk3 (ALSA-2026:69098)");

  script_set_attribute(attribute:"synopsis", value:
"The remote AlmaLinux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ALSA-2026:69098 advisory.

    * chromium-browser: Skia in Google Chrome: Sandbox escape via crafted HTML page (CVE-2026-19154)
      * chromium-browser: skia: Skia: Sandbox escape via out-of-bounds write in Chromium (CVE-2026-19173)
      * chromium-browser: Skia in Google Chrome: Cross-origin data leakage via uninitialized use
    (CVE-2026-19161)
      * chromium-browser: Skia: Arbitrary code execution via crafted HTML page (CVE-2026-19176)
      * chromium-browser: Chromium: Information leak allows web origin policy bypass (CVE-2026-76041)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-28984)
      * webkitgtk: Visiting a website may lead to an app denial-of-service (CVE-2026-43804)
      * webkitgtk: Websites may know if the user has visited a given link (CVE-2026-64713)
      * webkitgtk: Maliciously crafted web content may violate iframe sandboxing policy (CVE-2026-64728)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process termination
    (CVE-2026-64787)
      * webkitgtk: Visiting a website that frames malicious content may lead to UI spoofing (CVE-2026-64730)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-64757)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-64783)
      * webkitgtk: use-after-free of JSCValue function parameters (CVE-2026-78376)
      * chromium-browser: Skia: Information disclosure via out-of-bounds read in crafted media file
    (CVE-2026-79020)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-43795)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
    (CVE-2026-64715)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-64718)
      * webkitgtk: Visiting a maliciously crafted website may leak sensitive data (CVE-2026-64778)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-64779)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-64780)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-64782)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-64784)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-65331)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-65332)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-65334)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-65335)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-65336)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-65337)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-65338)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-65340)
      * webkitgtk: Processing maliciously crafted web content may lead to memory corruption (CVE-2026-65341)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
    (CVE-2026-65351)
      * webkitgtk: Validate the full FeatureList array once in OpenTypeVerticalData findFeature
    (CVE-2026-83596)
      * chromium-browser: skia: chromium-browser: Information leak in Skia (CVE-2026-84359)
      * webkitgtk: Processing maliciously crafted web content may lead to an unexpected process termination
    (CVE-2026-84635)
      * webkitgtk: Processing maliciously crafted web content may disclose sensitive user information
    (CVE-2026-64753)

Tenable has extracted the preceding description block directly from the AlmaLinux 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://errata.almalinux.org/9/ALSA-2026-69098.html");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2026:69098");
  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:U/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-2026-84635");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-83596");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(120, 125, 20, 200, 346, 359, 416, 451, 664, 667, 693, 787, 824, 825);

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/07/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:webkit2gtk3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:webkit2gtk3-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:webkit2gtk3-jsc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:webkit2gtk3-jsc-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::appstream");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::baseos");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::crb");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::highavailability");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::nfv");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::realtime");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::resilientstorage");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::sap");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::sap_hana");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:9::supplementary");
  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:"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_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AlmaLinux/release", "Host/AlmaLinux/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) || '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([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'AlmaLinux 9.x', '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 ('aarch64' >!< cpu && 'ppc' >!< cpu && 's390' >!< cpu && 'x86_64' >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);

var constraints = [
  {
    'release': '9',
    'pkgs': [
      {'reference':'webkit2gtk3-2.54.0-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'webkit2gtk3-devel-2.54.0-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'webkit2gtk3-jsc-2.54.0-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'},
      {'reference':'webkit2gtk3-jsc-devel-2.54.0-1.el9_8', 'el_string':'el9_8', 'rpm_spec_vers_cmp':TRUE, 'epoch':'0'}
    ]
  }
];

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');
}