Ubuntu 18.04 LTS kernel vulnerabilitie
Reporter | Title | Published | Views | Family All 199 |
---|---|---|---|---|
![]() | Linux kernel vulnerabilities | 17 Oct 201900:00 | – | ubuntu |
![]() | Linux kernel (HWE) vulnerabilities | 22 Oct 201900:00 | – | ubuntu |
![]() | Linux kernel vulnerabilities | 22 Oct 201900:00 | – | ubuntu |
![]() | Linux kernel (Azure) vulnerabilities | 23 Oct 201900:00 | – | ubuntu |
![]() | Linux kernel vulnerabilities | 22 Oct 201900:00 | – | ubuntu |
![]() | Linux kernel (Xenial HWE) vulnerabilities | 23 Oct 201900:00 | – | ubuntu |
![]() | Ubuntu: Security Advisory (USN-4157-1) | 18 Oct 201900:00 | – | openvas |
![]() | Ubuntu: Security Advisory (USN-4157-2) | 23 Oct 201900:00 | – | openvas |
![]() | Fedora Update for kernel-headers FEDORA-2019-97380355ae | 5 Sep 201900:00 | – | openvas |
![]() | Fedora Update for kernel-headers FEDORA-2019-4c91a2f76e | 5 Sep 201900:00 | – | openvas |
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4157-2. 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(130147);
script_version("1.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/27");
script_cve_id(
"CVE-2019-14814",
"CVE-2019-14815",
"CVE-2019-14816",
"CVE-2019-14821",
"CVE-2019-15504",
"CVE-2019-15505",
"CVE-2019-15902",
"CVE-2019-16714",
"CVE-2019-2181"
);
script_xref(name:"USN", value:"4157-2");
script_name(english:"Ubuntu 18.04 LTS : Linux kernel (HWE) vulnerabilities (USN-4157-2)");
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 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in
the USN-4157-2 advisory.
USN-4157-1 fixed vulnerabilities in the Linux kernel for Ubuntu 19.04. This update provides the
corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 19.04 for Ubuntu 18.04
LTS.
Wen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform
bounds checking, leading to a heap overflow. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2019-14814, CVE-2019-14815, CVE-2019-14816)
Matt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform
bounds checking when handling coalesced MMIO write operations. A local attacker with write access to
/dev/kvm could use this to cause a denial of service (system crash). (CVE-2019-14821)
Hui Peng and Mathias Payer discovered that the 91x Wi-Fi driver in the Linux kernel did not properly
handle error conditions on initialization, leading to a double-free vulnerability. A physically proximate
attacker could use this to cause a denial of service (system crash). (CVE-2019-15504)
It was discovered that the Technisat DVB-S/S2 USB device driver in the Linux kernel contained a buffer
overread. A physically proximate attacker could use this to cause a denial of service (system crash) or
possibly expose sensitive information. (CVE-2019-15505)
Brad Spengler discovered that a Spectre mitigation was improperly implemented in the ptrace susbsystem of
the Linux kernel. A local attacker could possibly use this to expose sensitive information.
(CVE-2019-15902)
It was discovered that the IPv6 RDS implementation in the Linux kernel did not properly initialize fields
in a data structure returned to user space. A local attacker could use this to expose sensitive
information (kernel memory). Please note that the RDS protocol is disabled via blocklist in Ubuntu by
default. (CVE-2019-16714)
It was discovered that an integer overflow existed in the Binder implementation of the Linux kernel,
leading to a buffer overflow. A local attacker could use this to escalate privileges. (CVE-2019-2181)
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-4157-2");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
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: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-2019-15505");
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:"2019/08/23");
script_set_attribute(attribute:"patch_publication_date", value:"2019/10/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/22");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-1021-gcp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-1023-azure");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-32-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-32-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-5.0.0-32-lowlatency");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
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) 2019-2024 Canonical, Inc. / NASL script (C) 2019-2024 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 (! ('18.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 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 = {
'18.04': {
'5.0.0': {
'generic': '5.0.0-32',
'generic-lpae': '5.0.0-32',
'lowlatency': '5.0.0-32',
'gcp': '5.0.0-1021',
'azure': '5.0.0-1023'
}
}
};
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 += '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-4157-2');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2019-2181', 'CVE-2019-14814', 'CVE-2019-14815', 'CVE-2019-14816', 'CVE-2019-14821', 'CVE-2019-15504', 'CVE-2019-15505', 'CVE-2019-15902', 'CVE-2019-16714');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-4157-2');
}
else
{
extra = extra + ksplice_reporting_text();
}
}
if (extra) {
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : extra
);
exit(0);
}
Transform Your Security Services
Elevate your offerings with Vulners' advanced Vulnerability Intelligence. Contact us for a demo and discover the difference comprehensive, actionable intelligence can make in your security strategy.
Book a live demo