Ubuntu 16.04 LTS Linux kernel vulnerabilitie
Reporter | Title | Published | Views | Family All 199 |
---|---|---|---|---|
![]() | Linux kernel vulnerabilities | 11 Jun 202000:00 | – | ubuntu |
![]() | Linux kernel vulnerabilities | 11 Jun 202000:00 | – | ubuntu |
![]() | Linux kernel vulnerabilities | 10 Jun 202000:00 | – | ubuntu |
![]() | Linux kernel vulnerabilities | 9 Jun 202000:00 | – | ubuntu |
![]() | Linux kernel vulnerabilities | 10 Jun 202000:00 | – | ubuntu |
![]() | Linux kernel vulnerabilities | 10 Jun 202000:00 | – | ubuntu |
![]() | Kernel Live Patch Security Notice | 9 Jun 202000:00 | – | ubuntu |
![]() | Ubuntu: Security Advisory (USN-4391-1) | 10 Jun 202000:00 | – | openvas |
![]() | Ubuntu: Security Advisory (USN-4390-1) | 10 Jun 202000:00 | – | openvas |
![]() | Ubuntu: Security Advisory (USN-4389-1) | 10 Jun 202000:00 | – | openvas |
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4391-1. 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(137301);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/27");
script_cve_id(
"CVE-2019-19319",
"CVE-2020-0543",
"CVE-2020-10751",
"CVE-2020-12114",
"CVE-2020-12464",
"CVE-2020-12769",
"CVE-2020-12826",
"CVE-2020-1749"
);
script_xref(name:"USN", value:"4391-1");
script_name(english:"Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4391-1)");
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 host has a package installed that is affected by multiple vulnerabilities as referenced in
the USN-4391-1 advisory.
It was discovered that the ext4 file system implementation in the Linux kernel did not properly handle
setxattr operations in some situations. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2019-19319)
It was discovered that memory contents previously stored in microarchitectural special registers after
RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly
exposed to processes on the same or different processor cores. A local attacker could use this to expose
sensitive information. (CVE-2020-0543)
Piotr Krysiuk discovered that race conditions existed in the file system implementation in the Linux
kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12114)
It was discovered that the USB susbsystem's scatter-gather implementation in the Linux kernel did not
properly take data references in some situations, leading to a use-after-free. A physically proximate
attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
(CVE-2020-12464)
It was discovered that the DesignWare SPI controller driver in the Linux kernel contained a race
condition. A local attacker could possibly use this to cause a denial of service (system crash).
(CVE-2020-12769)
It was discovered that the exit signaling implementation in the Linux kernel contained an integer
overflow. A local attacker could use this to cause a denial of service (arbitrary application crash).
(CVE-2020-12826)
Xiumei Mu discovered that the IPSec implementation in the Linux kernel did not properly encrypt IPv6
traffic in some situations. An attacker could use this to expose sensitive information. (CVE-2020-1749)
Dmitry Vyukov discovered that the SELinux netlink security hook in the Linux kernel did not validate
messages in some situations. A privileged attacker could use this to bypass SELinux netlink restrictions.
(CVE-2020-10751)
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-4391-1");
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:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-12464");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-1749");
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:"2019/11/27");
script_set_attribute(attribute:"patch_publication_date", value:"2020/06/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/06/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1075-kvm");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1109-aws");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1134-raspi2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-1138-snapdragon");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-184-generic");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-184-generic-lpae");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-184-lowlatency");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-184-powerpc-e500mc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-184-powerpc-smp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-184-powerpc64-emb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4.0-184-powerpc64-smp");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-: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) 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)) audit(AUDIT_OS_NOT, 'Ubuntu 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 = {
'16.04': {
'4.4.0': {
'generic': '4.4.0-184',
'generic-lpae': '4.4.0-184',
'lowlatency': '4.4.0-184',
'powerpc-e500mc': '4.4.0-184',
'powerpc-smp': '4.4.0-184',
'powerpc64-emb': '4.4.0-184',
'powerpc64-smp': '4.4.0-184',
'kvm': '4.4.0-1075',
'aws': '4.4.0-1109',
'raspi2': '4.4.0-1134',
'snapdragon': '4.4.0-1138'
}
}
};
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-4391-1');
}
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
var cve_list = make_list('CVE-2019-19319', 'CVE-2020-0543', 'CVE-2020-1749', 'CVE-2020-10751', 'CVE-2020-12114', 'CVE-2020-12464', 'CVE-2020-12769', 'CVE-2020-12826');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for USN-4391-1');
}
else
{
extra = extra + ksplice_reporting_text();
}
}
if (extra) {
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : extra
);
exit(0);
}
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