The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6704-2 advisory.
In the Linux kernel before 5.17, drivers/phy/tegra/xusb.c mishandles the tegra_xusb_find_port_node return value. Callers expect NULL in the error case, but an error pointer is used. (CVE-2023-23000)
A flaw was found in the Linux kernel’s ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_SESSION_SETUP commands. The issue results from the lack of control of resource consumption. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. (CVE-2023-32247)
A use-after-free vulnerability in the Linux kernel’s netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_setelem_catchall_deactivate() function checks whether the catch-all set element is active in the current generation instead of the next generation before freeing it, but only flags it inactive in the next generation, making it possible to free the element multiple times, leading to a double free vulnerability. We recommend upgrading past commit b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7. (CVE-2024-1085)
A use-after-free vulnerability in the Linux kernel’s netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660. (CVE-2024-1086)
A race condition was found in the Linux kernel’s scsi device driver in lpfc_unregister_fcf_rescan() function. This can result in a null pointer dereference issue, possibly leading to a kernel panic or denial of service issue. (CVE-2024-24855)
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 Ubuntu Security Notice USN-6704-2. 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(192398);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/05");
script_cve_id(
"CVE-2023-23000",
"CVE-2023-32247",
"CVE-2024-1085",
"CVE-2024-1086",
"CVE-2024-24855"
);
script_xref(name:"USN", value:"6704-2");
script_name(english:"Ubuntu 22.04 LTS : Linux kernel (Raspberry Pi) vulnerabilities (USN-6704-2)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in
the USN-6704-2 advisory.
- In the Linux kernel before 5.17, drivers/phy/tegra/xusb.c mishandles the tegra_xusb_find_port_node return
value. Callers expect NULL in the error case, but an error pointer is used. (CVE-2023-23000)
- A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw
exists within the handling of SMB2_SESSION_SETUP commands. The issue results from the lack of control of
resource consumption. An attacker can leverage this vulnerability to create a denial-of-service condition
on the system. (CVE-2023-32247)
- A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to
achieve local privilege escalation. The nft_setelem_catchall_deactivate() function checks whether the
catch-all set element is active in the current generation instead of the next generation before freeing
it, but only flags it inactive in the next generation, making it possible to free the element multiple
times, leading to a double free vulnerability. We recommend upgrading past commit
b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7. (CVE-2024-1085)
- A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to
achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error
within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when
NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit
f342de4e2f33e0e39165d8639387aa6c19dff660. (CVE-2024-1086)
- A race condition was found in the Linux kernel's scsi device driver in lpfc_unregister_fcf_rescan()
function. This can result in a null pointer dereference issue, possibly leading to a kernel panic or
denial of service issue. (CVE-2024-24855)
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://ubuntu.com/security/notices/USN-6704-2");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-1086");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/03/01");
script_set_attribute(attribute:"patch_publication_date", value:"2024/03/21");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/03/21");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1049-raspi");
script_set_attribute(attribute:"generated_plugin", value:"current");
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", "linux_alt_patch_detect.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
include('ksplice.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 (! ('22.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 22.04', '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 kernel_mappings = {
'22.04': {
'5.15.0': {
'raspi': '5.15.0-1049'
}
}
};
var host_kernel_release = get_kb_item('Host/uptrack-uname-r');
if (empty_or_null(host_kernel_release)) host_kernel_release = get_kb_item_or_exit('Host/uname-r');
var host_kernel_base_version = get_kb_item_or_exit('Host/Debian/kernel-base-version');
var host_kernel_type = get_kb_item_or_exit('Host/Debian/kernel-type');
if(empty_or_null(kernel_mappings[os_release][host_kernel_base_version][host_kernel_type])) audit(AUDIT_INST_VER_NOT_VULN, 'kernel ' + host_kernel_release);
var extra = '';
var kernel_fixed_version = kernel_mappings[os_release][host_kernel_base_version][host_kernel_type] + "-" + host_kernel_type;
if (deb_ver_cmp(ver1:host_kernel_release, ver2:kernel_fixed_version) < 0)
{
extra = extra + 'Running Kernel level of ' + host_kernel_release + ' does not meet the minimum fixed level of ' + kernel_fixed_version + ' for this advisory.\n\n';
}
else
{
audit(AUDIT_PATCH_INSTALLED, 'Kernel package for USN-6704-2');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2023-23000', 'CVE-2023-32247', 'CVE-2024-1085', 'CVE-2024-1086', 'CVE-2024-24855');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-6704-2');
}
else
{
extra = extra + ksplice_reporting_text();
}
}
if (extra) {
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : extra
);
exit(0);
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 22.04 | cpe:/o:canonical:ubuntu_linux:22.04:-:lts |
canonical | ubuntu_linux | linux-image-5.15.0-1049-raspi | p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1049-raspi |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-23000
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32247
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-1085
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-1086
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-24855
ubuntu.com/security/notices/USN-6704-2