The remote Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5485-1 advisory.
Incomplete cleanup of multi-core shared buffers for some Intel® Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21123)
Incomplete cleanup of microarchitectural fill buffers on some Intel® Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21125)
Incomplete cleanup in specific special register write operations for some Intel® Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21166)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-5485-1. 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(162394);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/09");
script_cve_id("CVE-2022-21123", "CVE-2022-21125", "CVE-2022-21166");
script_xref(name:"USN", value:"5485-1");
script_name(english:"Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-5485-1)");
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 16.04 ESM / 18.04 LTS / 20.04 LTS / 22.04 LTS host has a package installed that is affected by
multiple vulnerabilities as referenced in the USN-5485-1 advisory.
- Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated
user to potentially enable information disclosure via local access. (CVE-2022-21123)
- Incomplete cleanup of microarchitectural fill buffers on some Intel(R) Processors may allow an
authenticated user to potentially enable information disclosure via local access. (CVE-2022-21125)
- Incomplete cleanup in specific special register write operations for some Intel(R) Processors may allow an
authenticated user to potentially enable information disclosure via local access. (CVE-2022-21166)
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-5485-1");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:F/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:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-21166");
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:"2022/06/14");
script_set_attribute(attribute:"patch_publication_date", value:"2022/06/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/06/17");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:esm");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
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-4.15.0-1048-dell300x");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1101-oracle");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1122-kvm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1130-gcp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1136-aws");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1136-aws-hwe");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1145-azure");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-187-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-187-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-187-lowlatency");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-1017-intel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-1031-azure");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-1033-gcp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-1036-oracle");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-51-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-51-generic-64k");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-51-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.13.0-51-lowlatency");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1009-ibm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1010-gcp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1011-oracle");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1012-azure");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-1013-aws");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-39-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-39-generic-64k");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-39-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-39-lowlatency");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.15.0-39-lowlatency-64k");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1028-ibm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1048-gkeop");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1070-kvm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1076-gke");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1078-oracle");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1080-aws");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1080-gcp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1085-azure");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1085-azure-fde");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-120-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-120-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-120-lowlatency");
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) 2022-2024 Canonical, Inc. / NASL script (C) 2022-2024 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 (! ('16.04' >< os_release || '18.04' >< os_release || '20.04' >< os_release || '22.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04 / 20.04 / 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 = {
'16.04': {
'4.15.0': {
'generic': '4.15.0-187',
'lowlatency': '4.15.0-187',
'oracle': '4.15.0-1101',
'gcp': '4.15.0-1130',
'aws': '4.15.0-1136',
'aws-hwe': '4.15.0-1136',
'azure': '4.15.0-1145'
}
},
'18.04': {
'4.15.0': {
'generic': '4.15.0-187',
'generic-lpae': '4.15.0-187',
'lowlatency': '4.15.0-187',
'dell300x': '4.15.0-1048',
'oracle': '4.15.0-1101',
'kvm': '4.15.0-1122',
'gcp': '4.15.0-1130',
'aws': '4.15.0-1136',
'azure': '4.15.0-1145'
},
'5.4.0': {
'generic': '5.4.0-120',
'generic-lpae': '5.4.0-120',
'lowlatency': '5.4.0-120',
'ibm': '5.4.0-1028',
'gkeop': '5.4.0-1048',
'gke': '5.4.0-1076',
'oracle': '5.4.0-1078',
'aws': '5.4.0-1080',
'gcp': '5.4.0-1080',
'azure': '5.4.0-1085'
}
},
'20.04': {
'5.13.0': {
'generic': '5.13.0-51',
'generic-64k': '5.13.0-51',
'generic-lpae': '5.13.0-51',
'lowlatency': '5.13.0-51',
'intel': '5.13.0-1017',
'azure': '5.13.0-1031',
'gcp': '5.13.0-1033',
'oracle': '5.13.0-1036'
},
'5.4.0': {
'generic': '5.4.0-120',
'generic-lpae': '5.4.0-120',
'lowlatency': '5.4.0-120',
'ibm': '5.4.0-1028',
'gkeop': '5.4.0-1048',
'kvm': '5.4.0-1070',
'gke': '5.4.0-1076',
'oracle': '5.4.0-1078',
'aws': '5.4.0-1080',
'gcp': '5.4.0-1080',
'azure-fde': '5.4.0-1085'
}
},
'22.04': {
'5.15.0': {
'generic': '5.15.0-39',
'generic-64k': '5.15.0-39',
'generic-lpae': '5.15.0-39',
'lowlatency': '5.15.0-39',
'lowlatency-64k': '5.15.0-39',
'ibm': '5.15.0-1009',
'gcp': '5.15.0-1010',
'oracle': '5.15.0-1011',
'azure': '5.15.0-1012',
'aws': '5.15.0-1013'
}
}
};
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-5485-1');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2022-21123', 'CVE-2022-21125', 'CVE-2022-21166');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-5485-1');
}
else
{
extra = extra + ksplice_reporting_text();
}
}
if (extra) {
security_report_v4(
port : 0,
severity : SECURITY_NOTE,
extra : extra
);
exit(0);
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 16.04 | cpe:/o:canonical:ubuntu_linux:16.04:-:esm |
canonical | ubuntu_linux | 18.04 | cpe:/o:canonical:ubuntu_linux:18.04:-:lts |
canonical | ubuntu_linux | 20.04 | cpe:/o:canonical:ubuntu_linux:20.04:-:lts |
canonical | ubuntu_linux | 22.04 | cpe:/o:canonical:ubuntu_linux:22.04:-:lts |
canonical | ubuntu_linux | linux-image-4.15.0-1048-dell300x | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1048-dell300x |
canonical | ubuntu_linux | linux-image-4.15.0-1101-oracle | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1101-oracle |
canonical | ubuntu_linux | linux-image-4.15.0-1122-kvm | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1122-kvm |
canonical | ubuntu_linux | linux-image-4.15.0-1130-gcp | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1130-gcp |
canonical | ubuntu_linux | linux-image-4.15.0-1136-aws | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1136-aws |
canonical | ubuntu_linux | linux-image-4.15.0-1136-aws-hwe | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1136-aws-hwe |