The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6777-2 advisory.
Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-47233)
Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:
- Block layer subsystem;
- Userspace I/O drivers;
- Ceph distributed file system;
- Ext4 file system;
- JFS file system;
- NILFS2 file system;
- Bluetooth subsystem;
- Networking core;
- IPv4 networking;
- IPv6 networking;
- Logical Link layer;
- MAC80211 subsystem;
- Netlink;
- NFC subsystem;
- Tomoyo security module; (CVE-2023-52524, CVE-2023-52530, CVE-2023-52601, CVE-2023-52439, CVE-2024-26635, CVE-2023-52602, CVE-2024-26614, CVE-2024-26704, CVE-2023-52604, CVE-2023-52566, CVE-2021-46981, CVE-2024-26622, CVE-2024-26735, CVE-2024-26805, CVE-2024-26801, CVE-2023-52583)
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
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-6777-2. 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(197518);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/23");
script_cve_id(
"CVE-2021-46981",
"CVE-2023-47233",
"CVE-2023-52439",
"CVE-2023-52524",
"CVE-2023-52530",
"CVE-2023-52566",
"CVE-2023-52583",
"CVE-2023-52601",
"CVE-2023-52602",
"CVE-2023-52604",
"CVE-2024-26614",
"CVE-2024-26622",
"CVE-2024-26635",
"CVE-2024-26704",
"CVE-2024-26735",
"CVE-2024-26801",
"CVE-2024-26805"
);
script_xref(name:"USN", value:"6777-2");
script_name(english:"Ubuntu 14.04 LTS / 16.04 LTS : Linux kernel (Azure) vulnerabilities (USN-6777-2)");
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 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as
referenced in the USN-6777-2 advisory.
Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition
during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could
possibly use this to cause a denial of service (system crash). (CVE-2023-47233)
Several security issues were discovered in the Linux kernel. An attacker could possibly use these to
compromise the system. This update corrects flaws in the following subsystems:
- Block layer subsystem;
- Userspace I/O drivers;
- Ceph distributed file system;
- Ext4 file system;
- JFS file system;
- NILFS2 file system;
- Bluetooth subsystem;
- Networking core;
- IPv4 networking;
- IPv6 networking;
- Logical Link layer;
- MAC80211 subsystem;
- Netlink;
- NFC subsystem;
- Tomoyo security module; (CVE-2023-52524, CVE-2023-52530, CVE-2023-52601, CVE-2023-52439, CVE-2024-26635,
CVE-2023-52602, CVE-2024-26614, CVE-2024-26704, CVE-2023-52604, CVE-2023-52566, CVE-2021-46981,
CVE-2024-26622, CVE-2024-26735, CVE-2024-26805, CVE-2024-26801, CVE-2023-52583)
Tenable has extracted the preceding description block directly from the Ubuntu security advisory.
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-6777-2");
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:U/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:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-52439");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/11/03");
script_set_attribute(attribute:"patch_publication_date", value:"2024/05/20");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/05/20");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1177-azure");
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 (! ('14.04' >< os_release || '16.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 14.04 / 16.04', '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 = {
'14.04': {
'4.15.0': {
'azure': '4.15.0-1177'
}
},
'16.04': {
'4.15.0': {
'azure': '4.15.0-1177'
}
}
};
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-6777-2');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2021-46981', 'CVE-2023-47233', 'CVE-2023-52439', 'CVE-2023-52524', 'CVE-2023-52530', 'CVE-2023-52566', 'CVE-2023-52583', 'CVE-2023-52601', 'CVE-2023-52602', 'CVE-2023-52604', 'CVE-2024-26614', 'CVE-2024-26622', 'CVE-2024-26635', 'CVE-2024-26704', 'CVE-2024-26735', 'CVE-2024-26801', 'CVE-2024-26805');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-6777-2');
}
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 | 16.04 | cpe:/o:canonical:ubuntu_linux:16.04:-:lts |
canonical | ubuntu_linux | 14.04 | cpe:/o:canonical:ubuntu_linux:14.04:-:lts |
canonical | ubuntu_linux | linux-image-4.15.0-1177-azure | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1177-azure |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46981
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-47233
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52439
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52524
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52530
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52566
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52583
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52601
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52602
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52604
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26614
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26622
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26635
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26704
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26735
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26801
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26805
ubuntu.com/security/notices/USN-6777-2