The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2019:3517 advisory.
kernel: Linux stack ASLR implementation Integer overflow (CVE-2015-1593)
kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)
kernel: Information Disclosure in crypto_report_one in crypto/crypto_user.c (CVE-2018-19854)
kernel: oob memory read in hso_probe in drivers/net/usb/hso.c (CVE-2018-19985)
kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS (CVE-2018-20169)
kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c (CVE-2019-10126)
kernel: null-pointer dereference in hci_uart_set_flow_control (CVE-2019-10207)
Kernel: net: weak IP ID generation leads to remote device tracking (CVE-2019-10638)
kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)
kernel: fs/ext4/extents.c leads to information disclosure (CVE-2019-11833)
kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884)
kernel: unchecked kstrdup of fwstr in drm_load_edid_firmware leads to denial of service (CVE-2019-12382)
kernel: use-after-free in arch/x86/lib/insn-eval.c (CVE-2019-13233)
kernel: denial of service in arch/powerpc/kernel/signal_32.c and arch/powerpc/kernel/signal_64.c via sigreturn() system call (CVE-2019-13648)
Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)
kernel: out-of-bounds array access in __xfrm_policy_unlink (CVE-2019-15666)
kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916)
kernel: memory leak in genl_register_family() in net/netlink/genetlink.c (CVE-2019-15921)
kernel: null pointer dereference in drivers/net/ethernet/intel/fm10k/fm10k_main.c (CVE-2019-15924)
kernel: Memory leak in sit_init_net() in net/ipv6/sit.c (CVE-2019-16994)
kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)
kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)
kernel: SCTP socket buffer memory leak leading to denial of service (CVE-2019-3874)
kernel: denial of service vector through vfio DMA mappings (CVE-2019-3882)
Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)
Kernel: page cache side channel attacks (CVE-2019-5489)
Kernel: KVM: leak of uninitialized stack contents to guest (CVE-2019-7222)
hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)
kernel: use-after-free read in napi_gro_frags() in the Linux kernel (CVE-2020-10720)
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# Red Hat Security Advisory RHSA-2019:3517. The text
# itself is copyright (C) Red Hat, Inc.
##
include('compat.inc');
if (description)
{
script_id(145665);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/12/05");
script_cve_id(
"CVE-2015-1593",
"CVE-2018-16884",
"CVE-2018-19854",
"CVE-2018-19985",
"CVE-2018-20169",
"CVE-2019-3459",
"CVE-2019-3460",
"CVE-2019-3874",
"CVE-2019-3882",
"CVE-2019-3900",
"CVE-2019-5489",
"CVE-2019-7222",
"CVE-2019-9506",
"CVE-2019-10126",
"CVE-2019-10207",
"CVE-2019-10638",
"CVE-2019-11599",
"CVE-2019-11833",
"CVE-2019-11884",
"CVE-2019-12382",
"CVE-2019-13233",
"CVE-2019-13648",
"CVE-2019-14821",
"CVE-2019-15666",
"CVE-2019-15916",
"CVE-2019-15921",
"CVE-2019-15924",
"CVE-2019-16994",
"CVE-2020-10720"
);
script_bugtraq_id(
72607,
106148,
106253,
106478,
106565,
106963,
107488,
107528,
107782,
107910,
108076,
108113,
108299,
108372,
108474,
108817,
109055,
109092
);
script_xref(name:"RHSA", value:"2019:3517");
script_xref(name:"CEA-ID", value:"CEA-2021-0025");
script_name(english:"CentOS 8 : kernel (CESA-2019:3517)");
script_set_attribute(attribute:"synopsis", value:
"The remote CentOS host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the
CESA-2019:3517 advisory.
- kernel: Linux stack ASLR implementation Integer overflow (CVE-2015-1593)
- kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)
- kernel: Information Disclosure in crypto_report_one in crypto/crypto_user.c (CVE-2018-19854)
- kernel: oob memory read in hso_probe in drivers/net/usb/hso.c (CVE-2018-19985)
- kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS (CVE-2018-20169)
- kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c
(CVE-2019-10126)
- kernel: null-pointer dereference in hci_uart_set_flow_control (CVE-2019-10207)
- Kernel: net: weak IP ID generation leads to remote device tracking (CVE-2019-10638)
- kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)
- kernel: fs/ext4/extents.c leads to information disclosure (CVE-2019-11833)
- kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884)
- kernel: unchecked kstrdup of fwstr in drm_load_edid_firmware leads to denial of service (CVE-2019-12382)
- kernel: use-after-free in arch/x86/lib/insn-eval.c (CVE-2019-13233)
- kernel: denial of service in arch/powerpc/kernel/signal_32.c and arch/powerpc/kernel/signal_64.c via
sigreturn() system call (CVE-2019-13648)
- Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)
- kernel: out-of-bounds array access in __xfrm_policy_unlink (CVE-2019-15666)
- kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service
(CVE-2019-15916)
- kernel: memory leak in genl_register_family() in net/netlink/genetlink.c (CVE-2019-15921)
- kernel: null pointer dereference in drivers/net/ethernet/intel/fm10k/fm10k_main.c (CVE-2019-15924)
- kernel: Memory leak in sit_init_net() in net/ipv6/sit.c (CVE-2019-16994)
- kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)
- kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)
- kernel: SCTP socket buffer memory leak leading to denial of service (CVE-2019-3874)
- kernel: denial of service vector through vfio DMA mappings (CVE-2019-3882)
- Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)
- Kernel: page cache side channel attacks (CVE-2019-5489)
- Kernel: KVM: leak of uninitialized stack contents to guest (CVE-2019-7222)
- hardware: bluetooth: BR/EDR encryption key negotiation attacks (KNOB) (CVE-2019-9506)
- kernel: use-after-free read in napi_gro_frags() in the Linux kernel (CVE-2020-10720)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2019:3517");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:H/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:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-10126");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/02/13");
script_set_attribute(attribute:"patch_publication_date", value:"2019/11/05");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/01/29");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:8");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:bpftool");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-abi-whitelists");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-cross-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-debug-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-debug-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-debug-modules");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-debug-modules-extra");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-modules");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-modules-extra");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-tools-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-tools-libs-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:python3-perf");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CentOS Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021-2022 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/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list", "Host/cpu");
exit(0);
}
include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');
include('rhel.inc');
include('ksplice.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item('Host/CentOS/release');
if (isnull(release) || 'CentOS' >!< release) audit(AUDIT_OS_NOT, 'CentOS');
os_ver = pregmatch(pattern: "CentOS(?: Stream)?(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'CentOS');
os_ver = os_ver[1];
if ('CentOS Stream' >< release) audit(AUDIT_OS_NOT, 'CentOS 8.x', 'CentOS Stream ' + os_ver);
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '8')) audit(AUDIT_OS_NOT, 'CentOS 8.x', 'CentOS ' + os_ver);
if (!get_kb_item('Host/CentOS/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
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, 'CentOS', cpu);
if (get_one_kb_item('Host/ksplice/kernel-cves'))
{
rm_kb_item(name:'Host/uptrack-uname-r');
cve_list = make_list('CVE-2015-1593', 'CVE-2018-16884', 'CVE-2018-19854', 'CVE-2018-19985', 'CVE-2018-20169', 'CVE-2019-3459', 'CVE-2019-3460', 'CVE-2019-3874', 'CVE-2019-3882', 'CVE-2019-3900', 'CVE-2019-5489', 'CVE-2019-7222', 'CVE-2019-9506', 'CVE-2019-10126', 'CVE-2019-10207', 'CVE-2019-10638', 'CVE-2019-11599', 'CVE-2019-11833', 'CVE-2019-11884', 'CVE-2019-12382', 'CVE-2019-13233', 'CVE-2019-13648', 'CVE-2019-14821', 'CVE-2019-15666', 'CVE-2019-15916', 'CVE-2019-15921', 'CVE-2019-15924', 'CVE-2019-16994', 'CVE-2020-10720');
if (ksplice_cves_check(cve_list))
{
audit(AUDIT_PATCH_INSTALLED, 'KSplice hotfix for CESA-2019:3517');
}
else
{
__rpm_report = ksplice_reporting_text();
}
}
pkgs = [
{'reference':'bpftool-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'bpftool-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-abi-whitelists-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-abi-whitelists-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-core-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-core-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-cross-headers-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-cross-headers-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-debug-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-debug-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-debug-core-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-debug-core-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-debug-devel-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-debug-devel-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-debug-modules-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-debug-modules-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-debug-modules-extra-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-debug-modules-extra-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-devel-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-devel-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-headers-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-headers-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-modules-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-modules-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-modules-extra-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-modules-extra-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-tools-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-tools-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-tools-libs-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-tools-libs-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-tools-libs-devel-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'kernel-tools-libs-devel-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perf-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'perf-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python3-perf-4.18.0-147.el8', 'cpu':'aarch64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python3-perf-4.18.0-147.el8', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
];
flag = 0;
foreach package_array ( pkgs ) {
reference = NULL;
release = NULL;
sp = NULL;
cpu = NULL;
el_string = NULL;
rpm_spec_vers_cmp = NULL;
epoch = NULL;
allowmaj = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) release = 'CentOS-' + package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
if (reference && release) {
if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'bpftool / kernel / kernel-abi-whitelists / kernel-core / etc');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1593
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16884
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19854
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19985
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20169
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10126
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10207
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10638
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11599
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11833
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11884
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12382
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13233
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13648
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14821
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15666
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15916
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15921
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15924
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16994
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3459
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3460
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3874
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3882
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3900
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-5489
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-7222
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9506
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10720
access.redhat.com/errata/RHSA-2019:3517