8.8 High
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
9.1 High
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
77.4%
The remote Fedora 38 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2023-983329cf45 advisory.
Multiple NSS NIST curves were susceptible to a side-channel attack known as Minerva. This attack could potentially allow an attacker to recover the private key. This vulnerability affects Firefox < 121.
(CVE-2023-6135)
The WebGL DrawElementsInstanced
method was susceptible to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
(CVE-2023-6856)
When resolving a symlink, a race may occur where the buffer passed to readlink
may actually be smaller than necessary. This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS).
Windows is unaffected. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121. (CVE-2023-6857)
Firefox was susceptible to a heap buffer overflow in nsTextFragment
due to insufficient OOM handling.
This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121. (CVE-2023-6858)
A use-after-free condition affected TLS socket creation when under memory pressure. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121. (CVE-2023-6859)
The VideoBridge
allowed any content process to use textures produced by remote decoders. This could be abused to escape the sandbox. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121. (CVE-2023-6860)
The nsWindow::PickerOpen(void)
method was susceptible to a heap buffer overflow when running in headless mode. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
(CVE-2023-6861)
The ShutdownObserver()
was susceptible to potentially undefined behavior due to its reliance on a dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121. (CVE-2023-6863)
Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. 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 affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121. (CVE-2023-6864)
EncryptingOutputStream
was susceptible to exposing uninitialized data. This issue could only be abused in order to write data to a local disk which may have implications for private browsing mode. This vulnerability affects Firefox ESR < 115.6 and Firefox < 121. (CVE-2023-6865)
TypedArrays can be fallible and lacked proper exception handling. This could lead to abuse in other APIs which expect TypedArrays to always succeed. This vulnerability affects Firefox < 121. (CVE-2023-6866)
The timing of a button click causing a popup to disappear was approximately the same length as the anti- clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click where the permission grant button would be about to appear. This vulnerability affects Firefox ESR < 115.6 and Firefox < 121. (CVE-2023-6867)
In some instances, the user-agent would allow push requests which lacked a valid VAPID even though the push manager subscription defined one. This could allow empty messages to be sent from unauthorized parties. This bug only affects Firefox on Android. This vulnerability affects Firefox < 121.
(CVE-2023-6868)
A <dialog>
element could have been manipulated to paint content outside of a sandboxed iframe. This could allow untrusted content to display under the guise of trusted content. This vulnerability affects Firefox < 121. (CVE-2023-6869)
Applications which spawn a Toast notification in a background thread may have obscured fullscreen notifications displayed by Firefox. This issue only affects Android versions of Firefox and Firefox Focus. This vulnerability affects Firefox < 121. (CVE-2023-6870)
Under certain conditions, Firefox did not display a warning when a user attempted to navigate to a new protocol handler. This vulnerability affects Firefox < 121. (CVE-2023-6871)
Browser tab titles were being leaked by GNOME to system logs. This could potentially expose the browsing habits of users running in a private tab. This vulnerability affects Firefox < 121. (CVE-2023-6872)
Memory safety bugs present in Firefox 120. 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 affects Firefox < 121. (CVE-2023-6873)
Note that Nessus has not tested for these issues 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 Fedora Security Advisory FEDORA-2023-983329cf45
#
include('compat.inc');
if (description)
{
script_id(187186);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/26");
script_cve_id(
"CVE-2023-6135",
"CVE-2023-6856",
"CVE-2023-6857",
"CVE-2023-6858",
"CVE-2023-6859",
"CVE-2023-6860",
"CVE-2023-6861",
"CVE-2023-6863",
"CVE-2023-6864",
"CVE-2023-6865",
"CVE-2023-6866",
"CVE-2023-6867",
"CVE-2023-6868",
"CVE-2023-6869",
"CVE-2023-6870",
"CVE-2023-6871",
"CVE-2023-6872",
"CVE-2023-6873"
);
script_xref(name:"FEDORA", value:"2023-983329cf45");
script_xref(name:"IAVA", value:"2023-A-0702-S");
script_name(english:"Fedora 38 : firefox / nss (2023-983329cf45)");
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 38 host has packages installed that are affected by multiple vulnerabilities as referenced in the
FEDORA-2023-983329cf45 advisory.
- Multiple NSS NIST curves were susceptible to a side-channel attack known as Minerva. This attack could
potentially allow an attacker to recover the private key. This vulnerability affects Firefox < 121.
(CVE-2023-6135)
- The WebGL `DrawElementsInstanced` method was susceptible to a heap buffer overflow when used on systems
with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox
escape. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
(CVE-2023-6856)
- When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller
than necessary. *This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS).
Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox <
121. (CVE-2023-6857)
- Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling.
This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121. (CVE-2023-6858)
- A use-after-free condition affected TLS socket creation when under memory pressure. This vulnerability
affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121. (CVE-2023-6859)
- The `VideoBridge` allowed any content process to use textures produced by remote decoders. This could be
abused to escape the sandbox. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and
Firefox < 121. (CVE-2023-6860)
- The `nsWindow::PickerOpen(void)` method was susceptible to a heap buffer overflow when running in headless
mode. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
(CVE-2023-6861)
- The `ShutdownObserver()` was susceptible to potentially undefined behavior due to its reliance on a
dynamic type that lacked a virtual destructor. This vulnerability affects Firefox ESR < 115.6, Thunderbird
< 115.6, and Firefox < 121. (CVE-2023-6863)
- Memory safety bugs present in Firefox 120, Firefox ESR 115.5, and Thunderbird 115.5. 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 affects Firefox ESR < 115.6, Thunderbird < 115.6, and
Firefox < 121. (CVE-2023-6864)
- `EncryptingOutputStream` was susceptible to exposing uninitialized data. This issue could only be abused
in order to write data to a local disk which may have implications for private browsing mode. This
vulnerability affects Firefox ESR < 115.6 and Firefox < 121. (CVE-2023-6865)
- TypedArrays can be fallible and lacked proper exception handling. This could lead to abuse in other APIs
which expect TypedArrays to always succeed. This vulnerability affects Firefox < 121. (CVE-2023-6866)
- The timing of a button click causing a popup to disappear was approximately the same length as the anti-
clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring
them to click where the permission grant button would be about to appear. This vulnerability affects
Firefox ESR < 115.6 and Firefox < 121. (CVE-2023-6867)
- In some instances, the user-agent would allow push requests which lacked a valid VAPID even though the
push manager subscription defined one. This could allow empty messages to be sent from unauthorized
parties. *This bug only affects Firefox on Android.* This vulnerability affects Firefox < 121.
(CVE-2023-6868)
- A `<dialog>` element could have been manipulated to paint content outside of a sandboxed iframe. This
could allow untrusted content to display under the guise of trusted content. This vulnerability affects
Firefox < 121. (CVE-2023-6869)
- Applications which spawn a Toast notification in a background thread may have obscured fullscreen
notifications displayed by Firefox. *This issue only affects Android versions of Firefox and Firefox
Focus.* This vulnerability affects Firefox < 121. (CVE-2023-6870)
- Under certain conditions, Firefox did not display a warning when a user attempted to navigate to a new
protocol handler. This vulnerability affects Firefox < 121. (CVE-2023-6871)
- Browser tab titles were being leaked by GNOME to system logs. This could potentially expose the browsing
habits of users running in a private tab. This vulnerability affects Firefox < 121. (CVE-2023-6872)
- Memory safety bugs present in Firefox 120. 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 affects Firefox < 121. (CVE-2023-6873)
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-2023-983329cf45");
script_set_attribute(attribute:"solution", value:
"Update the affected firefox and / or nss 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:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-6873");
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:"2023/12/18");
script_set_attribute(attribute:"patch_publication_date", value:"2023/12/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/12/21");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:38");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:firefox");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:nss");
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:"Fedora Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2023-2024 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('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Fedora' >!< os_release) audit(AUDIT_OS_NOT, 'Fedora');
var os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Fedora');
os_ver = os_ver[1];
if (! preg(pattern:"^38([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Fedora 38', 'Fedora ' + os_ver);
if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Fedora', cpu);
var pkgs = [
{'reference':'firefox-121.0-2.fc38', 'release':'FC38', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE},
{'reference':'nss-3.95.0-1.fc38', 'release':'FC38', 'rpm_spec_vers_cmp':TRUE}
];
var flag = 0;
foreach 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;
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 (reference && _release) {
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)) 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, 'firefox / nss');
}
Vendor | Product | Version | CPE |
---|---|---|---|
fedoraproject | fedora | 38 | cpe:/o:fedoraproject:fedora:38 |
fedoraproject | fedora | firefox | p-cpe:/a:fedoraproject:fedora:firefox |
fedoraproject | fedora | nss | p-cpe:/a:fedoraproject:fedora:nss |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6135
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6856
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6857
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6858
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6859
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6860
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6861
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6863
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6864
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6865
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6866
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6867
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6868
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6869
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6870
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6871
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6872
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6873
bodhi.fedoraproject.org/updates/FEDORA-2023-983329cf45
8.8 High
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
9.1 High
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
77.4%