Amazon Linux 2 : firefox, --advisory ALAS2FIREFOX-2026-063 (ALASFIREFOX-2026-063)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALASFIREFOX-2026-063.
##

include('compat.inc');

if (description)
{
  script_id(337223);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/18");

  script_cve_id(
    "CVE-2026-16349",
    "CVE-2026-16350",
    "CVE-2026-16351",
    "CVE-2026-16352",
    "CVE-2026-16353",
    "CVE-2026-16354",
    "CVE-2026-16355",
    "CVE-2026-16356",
    "CVE-2026-16357",
    "CVE-2026-16358",
    "CVE-2026-16359",
    "CVE-2026-16360",
    "CVE-2026-16361",
    "CVE-2026-16362",
    "CVE-2026-16363",
    "CVE-2026-16368",
    "CVE-2026-16369",
    "CVE-2026-16371",
    "CVE-2026-16374",
    "CVE-2026-16375",
    "CVE-2026-16377",
    "CVE-2026-16379",
    "CVE-2026-16381",
    "CVE-2026-16383",
    "CVE-2026-16387",
    "CVE-2026-16390",
    "CVE-2026-16391",
    "CVE-2026-16396",
    "CVE-2026-16405",
    "CVE-2026-16412",
    "CVE-2026-17501"
  );
  script_xref(name:"IAVA", value:"2026-A-0755");

  script_name(english:"Amazon Linux 2 : firefox, --advisory ALAS2FIREFOX-2026-063 (ALASFIREFOX-2026-063)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of firefox installed on the remote host is prior to 140.13.0-1. It is, therefore, affected by multiple
vulnerabilities as referenced in the ALAS2FIREFOX-2026-063 advisory.

    Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153,
    Firefox ESR 115.38, and Firefox ESR 140.13. (CVE-2026-16349)

    Incorrect boundary conditions in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox
    153, Firefox ESR 115.38, and Firefox ESR 140.13. (CVE-2026-16350)

    Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in
    Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. (CVE-2026-16351)

    Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed
    in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. (CVE-2026-16352)

    Invalid pointer in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 153,
    Firefox ESR 115.38, and Firefox ESR 140.13. (CVE-2026-16353)

    Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153,
    Firefox ESR 115.38, and Firefox ESR 140.13. (CVE-2026-16354)

    JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153,
    Firefox ESR 115.38, and Firefox ESR 140.13. (CVE-2026-16355)

    Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed
    in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. (CVE-2026-16356)

    Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 153,
    Firefox ESR 115.38, and Firefox ESR 140.13. (CVE-2026-16357)

    Site isolation issue in the Graphics: WebRender component. This vulnerability was fixed in Firefox 153,
    Firefox ESR 115.38, and Firefox ESR 140.13. (CVE-2026-16358)

    Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox
    153, Firefox ESR 115.38, and Firefox ESR 140.13. (CVE-2026-16359)

    Memory safety bugs present in Firefox ESR 115.37, Firefox ESR 140.12 and Firefox 152. 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 153, Firefox ESR 115.38, and
    Firefox ESR 140.13. (CVE-2026-16360)

    Memory safety bugs present in Firefox ESR 115.37 and Firefox ESR 140.12. 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 ESR 115.38 and Firefox ESR
    140.13. (CVE-2026-16361)

    Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153 and
    Firefox ESR 140.13. (CVE-2026-16362)

    JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153
    and Firefox ESR 140.13. (CVE-2026-16363)

    Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in
    Firefox 153 and Firefox ESR 140.13. (CVE-2026-16368)

    Integer overflow in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153 and
    Firefox ESR 140.13. (CVE-2026-16369)

    Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153 and
    Firefox ESR 140.13. (CVE-2026-16371)

    Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firefox 153
    and Firefox ESR 140.13. (CVE-2026-16374)

    Site isolation issue in the Networking: HTTP component. This vulnerability was fixed in Firefox 153 and
    Firefox ESR 140.13. (CVE-2026-16375)

    Mitigation bypass in the PDF Viewer component. This vulnerability was fixed in Firefox 153 and Firefox ESR
    140.13. (CVE-2026-16377)

    Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefox 153
    and Firefox ESR 140.13. (CVE-2026-16379)

    Same-origin policy bypass in the Networking: DNS component. This vulnerability was fixed in Firefox 153
    and Firefox ESR 140.13. (CVE-2026-16381)

    Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and
    Firefox ESR 140.13. (CVE-2026-16383)

    Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 153 and Firefox
    ESR 140.13. (CVE-2026-16387)

    Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 153 and
    Firefox ESR 140.13. (CVE-2026-16390)

    Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 153
    and Firefox ESR 140.13. (CVE-2026-16391)

    Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153 and Firefox ESR 140.13.
    (CVE-2026-16396)

    Information disclosure in the Networking: WebSockets component. This vulnerability was fixed in Firefox
    153 and Firefox ESR 140.13. (CVE-2026-16405)

    Memory safety bugs present in Firefox ESR 140.12 and Firefox 152. 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 153 and Firefox ESR 140.13. (CVE-2026-16412)

    A flaw has been found in ggml-org llama.cpp e15efe0. This vulnerability affects the function transform of
    the file common/json-schema-to-grammar.cpp of the component JSON-Schema-to-GBNF Conversion. This
    manipulation causes allocation of resources. The attack may be initiated remotely. The pull request to fix
    this issue awaits acceptance. (CVE-2026-17501)

Tenable has extracted the preceding description block directly from the tested product 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://alas.aws.amazon.com//AL2/ALAS2FIREFOX-2026-063.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16349.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16350.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16351.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16352.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16353.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16354.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16355.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16356.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16357.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16358.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16359.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16360.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16361.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16362.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16363.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16368.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16369.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16371.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16374.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16375.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16377.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16379.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16381.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16383.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16387.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16390.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16391.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16396.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16405.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-16412.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-17501.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update firefox' or
  or 'yum update --advisory ALAS2FIREFOX-2026-063' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-17501");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-16412");

  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:"2026/07/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:firefox");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
  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:"Amazon 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/AmazonLinux/release", "Host/AmazonLinux/rpm-list");

  exit(0);
}

include("rpm2.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var REPOS_FOUND = TRUE;
var extras_list = get_kb_item("Host/AmazonLinux/extras_label_list");
if (isnull(extras_list)) REPOS_FOUND = FALSE;
var repository = '"amzn2extra-firefox"';
if (REPOS_FOUND && (repository >!< extras_list)) exit(0, AFFECTED_REPO_NOT_ENABLED);

var pkgs = [
    {'reference':'firefox-140.13.0-1.amzn2.0.1', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
    {'reference':'firefox-140.13.0-1.amzn2.0.1', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  var cves = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['cves'])) cves = package_array['cves'];
  if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    if (rpm_check(release:_release, 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)
{
  var extra = rpm_report_get();
  if (!REPOS_FOUND) extra = rpm_report_get() + report_repo_caveat();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "firefox");
}