CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:A/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
86.7%
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1016 advisory.
kernel: out of bound read in DVB connexant driver.
(CVE-2015-9289)
kernel: Missing permissions check for request_key() destination allows local attackers to add keys to keyring without Write permission (CVE-2017-17807)
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: denial of service via ioctl call in network tun handling (CVE-2018-7191)
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: net: using kernel space address bits to derive IP ID may potentially break KASLR (CVE-2019-10639)
kernel: ASLR bypass for setuid binaries due to late install_exec_creds() (CVE-2019-11190)
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: integer overflow and OOB read in drivers/block/floppy.c (CVE-2019-14283)
kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916)
kernel: buffer-overflow hardening in WiFi beacon validation code. (CVE-2019-16746)
kernel: (powerpc) incomplete Spectre-RSB mitigation leads to information exposure (CVE-2019-18660)
kernel: perf_event_open() and execve() race in setuid programs allows a data leak (CVE-2019-3901)
kernel: brcmfmac frame validation bypass (CVE-2019-9503)
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 descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:1016 and
# CentOS Errata and Security Advisory 2020:1016 respectively.
#
include('compat.inc');
if (description)
{
script_id(135316);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/19");
script_cve_id(
"CVE-2015-9289",
"CVE-2017-17807",
"CVE-2018-7191",
"CVE-2018-19985",
"CVE-2018-20169",
"CVE-2019-3901",
"CVE-2019-9503",
"CVE-2019-10207",
"CVE-2019-10638",
"CVE-2019-10639",
"CVE-2019-11190",
"CVE-2019-11884",
"CVE-2019-12382",
"CVE-2019-13233",
"CVE-2019-13648",
"CVE-2019-14283",
"CVE-2019-15916",
"CVE-2019-16746",
"CVE-2019-18660"
);
script_xref(name:"RHSA", value:"2020:1016");
script_name(english:"CentOS 7 : kernel (CESA-2020:1016)");
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 Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2020:1016 advisory.
- kernel: out of bound read in DVB connexant driver.
(CVE-2015-9289)
- kernel: Missing permissions check for request_key()
destination allows local attackers to add keys to
keyring without Write permission (CVE-2017-17807)
- 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: denial of service via ioctl call in network tun
handling (CVE-2018-7191)
- 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: net: using kernel space address bits to derive
IP ID may potentially break KASLR (CVE-2019-10639)
- kernel: ASLR bypass for setuid binaries due to late
install_exec_creds() (CVE-2019-11190)
- 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: integer overflow and OOB read in
drivers/block/floppy.c (CVE-2019-14283)
- kernel: memory leak in register_queue_kobjects() in
net/core/net-sysfs.c leads to denial of service
(CVE-2019-15916)
- kernel: buffer-overflow hardening in WiFi beacon
validation code. (CVE-2019-16746)
- kernel: (powerpc) incomplete Spectre-RSB mitigation
leads to information exposure (CVE-2019-18660)
- kernel: perf_event_open() and execve() race in setuid
programs allows a data leak (CVE-2019-3901)
- kernel: brcmfmac frame validation bypass (CVE-2019-9503)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
# https://lists.centos.org/pipermail/centos-cr-announce/2020-April/012401.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?05ca73ea");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel packages.");
script_set_cvss_base_vector("CVSS2#AV:A/AC:M/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-2019-9503");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-16746");
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:"2017/12/20");
script_set_attribute(attribute:"patch_publication_date", value:"2020/04/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/10");
script_set_attribute(attribute:"plugin_type", value:"local");
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-debug");
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-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:kernel-doc");
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-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:python-perf");
script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CentOS Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("rpm.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(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 7.x", "CentOS " + os_ver);
if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);
flag = 0;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"bpftool-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"kernel-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"kernel-abi-whitelists-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"kernel-debug-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"kernel-debug-devel-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"kernel-devel-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"kernel-doc-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"kernel-headers-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"kernel-tools-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"kernel-tools-libs-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"kernel-tools-libs-devel-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"perf-3.10.0-1127.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"python-perf-3.10.0-1127.el7")) flag++;
if (flag)
{
cr_plugin_caveat = '\n' +
'NOTE: The security advisory associated with this vulnerability has a\n' +
'fixed package version that may only be available in the continuous\n' +
'release (CR) repository for CentOS, until it is present in the next\n' +
'point release of CentOS.\n\n' +
'If an equal or higher package level does not exist in the baseline\n' +
'repository for your major version of CentOS, then updates from the CR\n' +
'repository will need to be applied in order to address the\n' +
'vulnerability.\n';
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get() + cr_plugin_caveat
);
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-debug / etc");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-9289
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17807
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-2018-7191
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-2019-10639
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11190
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-2019-14283
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15916
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16746
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18660
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3901
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9503
www.nessus.org/u?05ca73ea
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:A/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
86.7%