CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
77.7%
The remote Ubuntu 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-6562-2 advisory.
USN-6562-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code.(CVE-2023-6865,
CVE-2023-6857, CVE-2023-6858, CVE-2023-6859, CVE-2023-6866, CVE-2023-6867,
CVE-2023-6861, CVE-2023-6869, CVE-2023-6871, CVE-2023-6872, CVE-2023-6863,
CVE-2023-6864, CVE-2023-6873)
DoHyun Lee discovered that Firefox did not properly manage memory when used
on systems with the Mesa VM driver. An attacker could potentially exploit
this issue to execute arbitrary code. (CVE-2023-6856)
George Pantela and Hubert Kario discovered that Firefox using multiple NSS
NIST curves which were susceptible to a side-channel attack known as
Minerva. An attacker could potentially exploit this issue to obtain
sensitive information. (CVE-2023-6135)
Andrew Osmond discovered that Firefox did not properly validate the textures
produced by remote decoders. An attacker could potentially exploit this
issue to escape the sandbox. (CVE-2023-6860)
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-6562-2. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##
include('compat.inc');
if (description)
{
script_id(187938);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/28");
script_xref(name:"USN", value:"6562-2");
script_name(english:"Ubuntu 20.04 LTS : Firefox regressions (USN-6562-2)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the
USN-6562-2 advisory.
USN-6562-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update
fixes the problem.
We apologize for the inconvenience.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information across domains, or execute arbitrary code.(CVE-2023-6865,
CVE-2023-6857, CVE-2023-6858, CVE-2023-6859, CVE-2023-6866, CVE-2023-6867,
CVE-2023-6861, CVE-2023-6869, CVE-2023-6871, CVE-2023-6872, CVE-2023-6863,
CVE-2023-6864, CVE-2023-6873)
DoHyun Lee discovered that Firefox did not properly manage memory when used
on systems with the Mesa VM driver. An attacker could potentially exploit
this issue to execute arbitrary code. (CVE-2023-6856)
George Pantela and Hubert Kario discovered that Firefox using multiple NSS
NIST curves which were susceptible to a side-channel attack known as
Minerva. An attacker could potentially exploit this issue to obtain
sensitive information. (CVE-2023-6135)
Andrew Osmond discovered that Firefox did not properly validate the textures
produced by remote decoders. An attacker could potentially exploit this
issue to escape the sandbox. (CVE-2023-6860)
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-6562-2");
script_set_attribute(attribute:"solution", value:
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script_set_attribute(attribute:"risk_factor", value:"None");
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script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2024 Canonical, Inc. / NASL script (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('20.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 20.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) 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, 'Ubuntu', cpu);
var pkgs = [
{'osver': '20.04', 'pkgname': 'firefox', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-dev', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-geckodriver', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-af', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-an', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ar', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-as', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ast', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-az', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-be', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-bg', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-bn', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-br', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-bs', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ca', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-cak', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-cs', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-csb', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-cy', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-da', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-de', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-el', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-en', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-eo', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-es', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-et', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-eu', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-fa', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-fi', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-fr', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-fy', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ga', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-gd', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-gl', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-gn', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-gu', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-he', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-hi', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-hr', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-hsb', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-hu', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-hy', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ia', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-id', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-is', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-it', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ja', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ka', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-kab', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-kk', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-km', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-kn', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ko', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ku', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-lg', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-lt', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-lv', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-mai', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-mk', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ml', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-mn', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-mr', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ms', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-my', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-nb', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ne', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-nl', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-nn', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-nso', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-oc', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-or', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-pa', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-pl', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-pt', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ro', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ru', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-si', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-sk', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-sl', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-sq', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-sr', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-sv', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-sw', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-szl', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ta', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-te', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-tg', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-th', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-tr', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-uk', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-ur', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-uz', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-vi', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-xh', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-zh-hans', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-zh-hant', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-locale-zu', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'firefox-mozsymbols', 'pkgver': '121.0.1+build1-0ubuntu0.20.04.1'}
];
var flag = 0;
foreach var package_array ( pkgs ) {
var osver = NULL;
var pkgname = NULL;
var pkgver = NULL;
if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
if (osver && pkgname && pkgver) {
if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
}
}
if (flag)
{
var extra = '';
extra += ubuntu_report_get();
security_report_v4(
port : 0,
severity : SECURITY_NOTE,
extra : extra
);
exit(0);
}
else
{
var tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'firefox / firefox-dev / firefox-geckodriver / firefox-locale-af / etc');
}
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
77.7%