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Debian dla-4305 : firefox-esr - security update

🗓️ 19 Sep 2025 00:00:00Reported by TenableType 
nessus
 nessus🔗 www.tenable.com👁 5 Views

Debian LTS advisory DLA-4305-1 fixes Firefox ESR vulnerabilities in firefox-esr 140.3.0esr-1~deb11u2.

Related
Refs
Code
ReporterTitlePublishedViews
Family
FreeBSD		Mozilla -- Information disclosure
16 Sep 202500:00
–freebsd
FreeBSD		Mozilla -- Memory safety bugs
16 Sep 202500:00
–freebsd
FreeBSD		Firefox -- Sandbox escape due to use-after-free
16 Sep 202500:00
–freebsd
FreeBSD		Firefox -- Sandbox escape due to undefined behavior
16 Sep 202500:00
–freebsd
FreeBSD		Firefox -- Same-origin policy bypass
16 Sep 202500:00
–freebsd
FreeBSD		Firefox -- Incorrect boundary conditions
16 Sep 202500:00
–freebsd
FreeBSD		Mozilla -- integer overflow
16 Sep 202500:00
–freebsd
FreeBSD		Firefox -- Integer overflow in the SVG component
16 Sep 202500:00
–freebsd
FreeBSD		Firefox -- Information disclosure in the Networking: Cache component
16 Sep 202500:00
–freebsd
FreeBSD		Mozilla -- Sandbox escape due to use-after-free
16 Sep 202500:00
–freebsd
Rows per page
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#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-4305. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(265427);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/09/19");

  script_cve_id(
    "CVE-2025-10527",
    "CVE-2025-10528",
    "CVE-2025-10529",
    "CVE-2025-10532",
    "CVE-2025-10533",
    "CVE-2025-10536",
    "CVE-2025-10537"
  );

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  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-4305 advisory.

    - -------------------------------------------------------------------------
    Debian LTS Advisory DLA-4305-1                [email protected]
    https://www.debian.org/lts/security/               Emilio Pozuelo Monfort
    September 19, 2025                            https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : firefox-esr
    Version        : 140.3.0esr-1~deb11u2
    CVE ID         : CVE-2025-10527 CVE-2025-10528 CVE-2025-10529 CVE-2025-10532
                     CVE-2025-10533 CVE-2025-10536 CVE-2025-10537

    Multiple security issues have been found in the Mozilla Firefox web
    browser, which could potentially result in the execution of arbitrary
    code, sandbox escape, information disclosure or bypass of the same-origin
    policy.

    Debian follows the extended support releases (ESR) of Firefox.
    So starting with this update we're now following the 140.x releases.

    Between 128.x and 140.x, Firefox has seen a number of feature
    updates. For more information please refer to
    https://www.firefox.com/en-US/firefox/140.0esr/releasenotes/

    For Debian 11 bullseye, these problems have been fixed in version
    140.3.0esr-1~deb11u2.

    We recommend that you upgrade your firefox-esr packages.

    For the detailed security status of firefox-esr please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/firefox-esr

    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
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  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-10533");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-10536");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2025-10537");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/firefox-esr");
  script_set_attribute(attribute:"solution", value:
"Upgrade the firefox-esr 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");
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  script_set_attribute(attribute:"vuln_publication_date", value:"2025/09/16");
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include('debian_package.inc');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(11)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0', 'Debian ' + debian_release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '11.0', 'prefix': 'firefox-esr', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ach', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-af', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-all', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-an', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ar', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ast', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-az', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-be', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-bg', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-bn', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-br', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-bs', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ca', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ca-valencia', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-cak', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-cs', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-cy', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-da', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-de', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-dsb', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-el', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-en-ca', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-en-gb', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-eo', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-es-ar', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-es-cl', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-es-es', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-es-mx', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-et', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-eu', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-fa', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ff', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-fi', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-fr', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-fur', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-fy-nl', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ga-ie', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-gd', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-gl', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-gn', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-gu-in', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-he', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-hi-in', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-hr', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-hsb', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-hu', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-hy-am', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ia', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-id', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-is', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-it', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ja', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ka', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-kab', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-kk', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-km', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-kn', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ko', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-lij', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-lt', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-lv', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-mk', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-mr', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ms', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-my', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-nb-no', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ne-np', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-nl', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-nn-no', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-oc', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-pa-in', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-pl', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-pt-br', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-pt-pt', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-rm', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ro', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ru', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-sat', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-sc', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-sco', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-si', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-sk', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-skr', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-sl', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-son', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-sq', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-sr', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-sv-se', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-szl', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ta', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-te', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-tg', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-th', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-tl', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-tr', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-trs', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-uk', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-ur', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-uz', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-vi', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-xh', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-zh-cn', 'reference': '140.3.0esr-1~deb11u2'},
    {'release': '11.0', 'prefix': 'firefox-esr-l10n-zh-tw', 'reference': '140.3.0esr-1~deb11u2'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var _release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (_release && prefix && reference) {
    if (deb_check(release:_release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'firefox-esr / firefox-esr-l10n-ach / firefox-esr-l10n-af / etc');
}

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19 Sep 2025 00:00Current
7.2High risk
Vulners AI Score7.2
CVSS 3.18.8
EPSS0.00687
SSVC
firefox esr updatedebian ltssecurity advisoryvulnerability 2025-10527vulnerability 2025-10528vulnerability 2025-10529vulnerability 2025-10532vulnerability 2025-10533vulnerability 2025-10536vulnerability 2025-10537
5