The remote Ubuntu 16.04 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4526-1 advisory.
A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.
(CVE-2019-18808)
A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b. (CVE-2019-19054)
A memory leak in the adis_update_scan_mode_burst() function in drivers/iio/imu/adis_buffer.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-9c0530e898f3. (CVE-2019-19061)
Four memory leaks in the acp_hw_init() function in drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c in the Linux kernel before 5.3.8 allow attackers to cause a denial of service (memory consumption) by triggering mfd_add_hotplug_devices() or pm_genpd_add_device() failures, aka CID-57be09c6e874. NOTE: third parties dispute the relevance of this because the attacker must already have privileges for module loading (CVE-2019-19067)
Memory leaks in drivers/net/wireless/ath/ath9k/htc_hst.c in the Linux kernel through 5.3.11 allow attackers to cause a denial of service (memory consumption) by triggering wait_for_completion_timeout() failures. This affects the htc_config_pipe_credits() function, the htc_setup_complete() function, and the htc_connect_service() function, aka CID-853acf7caf10. (CVE-2019-19073)
A memory leak in the ath9k_wmi_cmd() function in drivers/net/wireless/ath/ath9k/wmi.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption), aka CID-728c1e2a05e4.
(CVE-2019-19074)
In the Android kernel in F2FS driver there is a possible out of bounds read due to a missing bounds check.
This could lead to local information disclosure with system execution privileges needed. User interaction is not needed for exploitation. (CVE-2019-9445)
The VFIO PCI driver in the Linux kernel through 5.6.13 mishandles attempts to access disabled memory space. (CVE-2020-12888)
A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system. (CVE-2020-14356)
The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c. (CVE-2020-16166)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4526-1. The text
# itself is copyright (C) Canonical, Inc. See
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
#
include('compat.inc');
if (description)
{
script_id(140722);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/09");
script_cve_id(
"CVE-2019-9445",
"CVE-2019-18808",
"CVE-2019-19054",
"CVE-2019-19061",
"CVE-2019-19067",
"CVE-2019-19073",
"CVE-2019-19074",
"CVE-2020-12888",
"CVE-2020-14356",
"CVE-2020-16166"
);
script_xref(name:"USN", value:"4526-1");
script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4526-1)");
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 LTS / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as
referenced in the USN-4526-1 advisory.
- A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel
through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.
(CVE-2019-18808)
- A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c in the Linux
kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering
kfifo_alloc() failures, aka CID-a7b2df76b42b. (CVE-2019-19054)
- A memory leak in the adis_update_scan_mode_burst() function in drivers/iio/imu/adis_buffer.c in the Linux
kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption), aka
CID-9c0530e898f3. (CVE-2019-19061)
- Four memory leaks in the acp_hw_init() function in drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c in the Linux
kernel before 5.3.8 allow attackers to cause a denial of service (memory consumption) by triggering
mfd_add_hotplug_devices() or pm_genpd_add_device() failures, aka CID-57be09c6e874. NOTE: third parties
dispute the relevance of this because the attacker must already have privileges for module loading
(CVE-2019-19067)
- Memory leaks in drivers/net/wireless/ath/ath9k/htc_hst.c in the Linux kernel through 5.3.11 allow
attackers to cause a denial of service (memory consumption) by triggering wait_for_completion_timeout()
failures. This affects the htc_config_pipe_credits() function, the htc_setup_complete() function, and the
htc_connect_service() function, aka CID-853acf7caf10. (CVE-2019-19073)
- A memory leak in the ath9k_wmi_cmd() function in drivers/net/wireless/ath/ath9k/wmi.c in the Linux kernel
through 5.3.11 allows attackers to cause a denial of service (memory consumption), aka CID-728c1e2a05e4.
(CVE-2019-19074)
- In the Android kernel in F2FS driver there is a possible out of bounds read due to a missing bounds check.
This could lead to local information disclosure with system execution privileges needed. User interaction
is not needed for exploitation. (CVE-2019-9445)
- The VFIO PCI driver in the Linux kernel through 5.6.13 mishandles attempts to access disabled memory
space. (CVE-2020-12888)
- A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found
in the way when reboot the system. A local user could use this flaw to crash the system or escalate their
privileges on the system. (CVE-2020-14356)
- The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive
information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to
drivers/char/random.c and kernel/time/timer.c. (CVE-2020-16166)
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-4526-1");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C: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:L/AC:L/PR:L/UI:N/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-2020-14356");
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:"2019/09/06");
script_set_attribute(attribute:"patch_publication_date", value:"2020/09/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/09/22");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1054-oracle");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1070-gke");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1071-raspi2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1075-kvm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1083-aws");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1084-gcp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1087-snapdragon");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1096-azure");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1097-oem");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-118-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-118-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-118-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) 2020-2024 Canonical, Inc. / NASL script (C) 2020-2024 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)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04', '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': '4.15.0-118',
'generic-lpae': '4.15.0-118',
'lowlatency': '4.15.0-118',
'oracle': '4.15.0-1054',
'aws': '4.15.0-1083',
'gcp': '4.15.0-1084',
'azure': '4.15.0-1096'
}
},
'18.04': {
'4.15.0': {
'generic': '4.15.0-118',
'generic-lpae': '4.15.0-118',
'lowlatency': '4.15.0-118',
'oracle': '4.15.0-1054',
'gke': '4.15.0-1070',
'raspi2': '4.15.0-1071',
'kvm': '4.15.0-1075',
'aws': '4.15.0-1083',
'gcp': '4.15.0-1084',
'snapdragon': '4.15.0-1087',
'azure': '4.15.0-1096',
'oem': '4.15.0-1097'
}
}
};
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-4526-1');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2019-9445', 'CVE-2019-18808', 'CVE-2019-19054', 'CVE-2019-19061', 'CVE-2019-19067', 'CVE-2019-19073', 'CVE-2019-19074', 'CVE-2020-12888', 'CVE-2020-14356', 'CVE-2020-16166');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-4526-1');
}
else
{
extra = extra + ksplice_reporting_text();
}
}
if (extra) {
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : extra
);
exit(0);
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 16.04 | cpe:/o:canonical:ubuntu_linux:16.04:-:lts |
canonical | ubuntu_linux | 18.04 | cpe:/o:canonical:ubuntu_linux:18.04:-:lts |
canonical | ubuntu_linux | linux-image-4.15.0-1054-oracle | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1054-oracle |
canonical | ubuntu_linux | linux-image-4.15.0-1070-gke | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1070-gke |
canonical | ubuntu_linux | linux-image-4.15.0-1071-raspi2 | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1071-raspi2 |
canonical | ubuntu_linux | linux-image-4.15.0-1075-kvm | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1075-kvm |
canonical | ubuntu_linux | linux-image-4.15.0-1083-aws | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1083-aws |
canonical | ubuntu_linux | linux-image-4.15.0-1084-gcp | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1084-gcp |
canonical | ubuntu_linux | linux-image-4.15.0-1087-snapdragon | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1087-snapdragon |
canonical | ubuntu_linux | linux-image-4.15.0-1096-azure | p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15.0-1096-azure |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18808
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19054
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19061
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19067
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19073
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19074
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9445
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12888
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14356
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16166
ubuntu.com/security/notices/USN-4526-1