Vulnerabilities > CVE-2017-15126 - Unspecified vulnerability in Linux Kernel

#
# (C) Tenable Network Security, Inc.
#

# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2019-0077. The text
# itself is copyright (C) ZTE, Inc.

include("compat.inc");

if (description)
{
  script_id(127285);
  script_version("1.2");
  script_cvs_date("Date: 2019/09/24 11:01:33");

  script_cve_id(
    "CVE-2017-7294",
    "CVE-2017-15121",
    "CVE-2017-15126",
    "CVE-2019-6974",
    "CVE-2019-7221"
  );
  script_bugtraq_id(107127, 107294);

  script_name(english:"NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2019-0077)");

  script_set_attribute(attribute:"synopsis", value:
"The remote machine is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has kernel packages installed that are affected by
multiple vulnerabilities:

  - A non-privileged user is able to mount a fuse filesystem
    on RHEL 6 or 7 and crash a system if an application
    punches a hole in a file that does not end aligned to a
    page boundary. (CVE-2017-15121)

  - A flaw was found in the Linux kernel's handling of fork
    failure when dealing with event messages in the
    userfaultfd code. Failure to fork correctly can create a
    fork event that will be removed from an already freed
    list of events. (CVE-2017-15126)

  - An out-of-bounds write vulnerability was found in the
    Linux kernel's vmw_surface_define_ioctl() function, in
    the 'drivers/gpu/drm/vmwgfx/vmwgfx_surface.c' file. Due
    to the nature of the flaw, privilege escalation cannot
    be fully ruled out, although we believe it is unlikely.
    (CVE-2017-7294)

  - A use-after-free vulnerability was found in the way the
    Linux kernel's KVM hypervisor implements its device
    control API. While creating a device via
    kvm_ioctl_create_device(), the device holds a reference
    to a VM object, later this reference is transferred to
    the caller's file descriptor table. If such file
    descriptor was to be closed, reference count to the VM
    object could become zero, potentially leading to a use-
    after-free issue. A user/process could use this flaw to
    crash the guest VM resulting in a denial of service
    issue or, potentially, gain privileged access to a
    system. (CVE-2019-6974)

  - A use-after-free vulnerability was found in the way the
    Linux kernel's KVM hypervisor emulates a preemption
    timer for L2 guests when nested (=1) virtualization is
    enabled. This high resolution timer(hrtimer) runs when a
    L2 guest is active. After VM exit, the sync_vmcs12()
    timer object is stopped. The use-after-free occurs if
    the timer object is freed before calling sync_vmcs12()
    routine. A guest user/process could use this flaw to
    crash the host kernel resulting in a denial of service
    or, potentially, gain privileged access to a system.
    (CVE-2019-7221)

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:"http://security.gd-linux.com/notice/NS-SA-2019-0077");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL kernel packages. Note that updated packages may not be available yet. Please contact ZTE for
more information.");
  script_set_cvss_base_vector("CVSS2#AV:N/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:H/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-2017-15126");
  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:"2017/03/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"NewStart CGSL Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");

  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/ZTE-CGSL/release");
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, "NewStart Carrier Grade Server Linux");

if (release !~ "CGSL CORE 5.04" &&
    release !~ "CGSL MAIN 5.04")
  audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.04 / NewStart CGSL MAIN 5.04');

if (!get_kb_item("Host/ZTE-CGSL/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, "NewStart Carrier Grade Server Linux", cpu);

flag = 0;

pkgs = {
  "CGSL CORE 5.04": [
    "kernel-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-abi-whitelists-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-core-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-debug-core-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-debug-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-debug-devel-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-debug-modules-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-debuginfo-common-x86_64-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-devel-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-doc-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-headers-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-modules-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-sign-keys-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-tools-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-tools-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-tools-libs-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "kernel-tools-libs-devel-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "perf-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "perf-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "python-perf-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite",
    "python-perf-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.13.331.gfd9c070.lite"
  ],
  "CGSL MAIN 5.04": [
    "kernel-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-abi-whitelists-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-debug-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-debug-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-debug-devel-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-debuginfo-common-x86_64-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-devel-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-doc-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-headers-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-sign-keys-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-tools-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-tools-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-tools-libs-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "kernel-tools-libs-devel-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "perf-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "perf-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "python-perf-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133",
    "python-perf-debuginfo-3.10.0-693.21.1.el7.cgslv5_4.13.328.gaf0e133"
  ]
};
pkg_list = pkgs[release];

foreach (pkg in pkg_list)
  if (rpm_check(release:"ZTE " + release, reference:pkg)) 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, "kernel");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2018:1062 and 
# Oracle Linux Security Advisory ELSA-2018-1062 respectively.
#

include("compat.inc");

if (description)
{
  script_id(109113);
  script_version("1.9");
  script_cvs_date("Date: 2019/09/27 13:00:38");

  script_cve_id("CVE-2016-3672", "CVE-2016-7913", "CVE-2016-8633", "CVE-2017-1000252", "CVE-2017-1000407", "CVE-2017-1000410", "CVE-2017-12154", "CVE-2017-12190", "CVE-2017-13166", "CVE-2017-13305", "CVE-2017-14140", "CVE-2017-15116", "CVE-2017-15121", "CVE-2017-15126", "CVE-2017-15127", "CVE-2017-15129", "CVE-2017-15265", "CVE-2017-15274", "CVE-2017-17448", "CVE-2017-17449", "CVE-2017-17558", "CVE-2017-18017", "CVE-2017-18203", "CVE-2017-18270", "CVE-2017-7294", "CVE-2017-8824", "CVE-2017-9725", "CVE-2018-1000004", "CVE-2018-5750", "CVE-2018-6927");
  script_xref(name:"RHSA", value:"2018:1062");

  script_name(english:"Oracle Linux 7 : kernel (ELSA-2018-1062)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2018:1062 :

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es) :

* hw: cpu: speculative execution permission faults handling
(CVE-2017-5754, Important, KVM for Power)

* kernel: Buffer overflow in firewire driver via crafted incoming
packets (CVE-2016-8633, Important)

* kernel: Use-after-free vulnerability in DCCP socket (CVE-2017-8824,
Important)

* Kernel: kvm: nVMX: L2 guest could access hardware(L0) CR8 register
(CVE-2017-12154, Important)

* kernel: v4l2: disabled memory access protection mechanism allowing
privilege escalation (CVE-2017-13166, Important)

* kernel: media: use-after-free in [tuner-xc2028] media driver
(CVE-2016-7913, Moderate)

* kernel: drm/vmwgfx: fix integer overflow in
vmw_surface_define_ioctl() (CVE-2017-7294, Moderate)

* kernel: Incorrect type conversion for size during dma allocation
(CVE-2017-9725, Moderate)

* kernel: memory leak when merging buffers in SCSI IO vectors
(CVE-2017-12190, Moderate)

* kernel: vfs: BUG in truncate_inode_pages_range() and fuse client
(CVE-2017-15121, Moderate)

* kernel: Use-after-free in userfaultfd_event_wait_completion function
in userfaultfd.c (CVE-2017-15126, Moderate)

* kernel: net: double-free and memory corruption in get_net_ns_by_id()
(CVE-2017-15129, Moderate)

* kernel: Use-after-free in snd_seq_ioctl_create_port()
(CVE-2017-15265, Moderate)

* kernel: Missing capabilities check in
net/netfilter/nfnetlink_cthelper.c allows for unprivileged access to
systemwide nfnl_cthelper_list structure (CVE-2017-17448, Moderate)

* kernel: Missing namespace check in net/netlink/af_netlink.c allows
for network monitors to observe systemwide activity (CVE-2017-17449,
Moderate)

* kernel: Unallocated memory access by malicious USB device via
bNumInterfaces overflow (CVE-2017-17558, Moderate)

* kernel: netfilter: use-after-free in tcpmss_mangle_packet function
in net/ netfilter/xt_TCPMSS.c (CVE-2017-18017, Moderate)

* kernel: Race condition in drivers/md/dm.c:dm_get_from_kobject()
allows local users to cause a denial of service (CVE-2017-18203,
Moderate)

* kernel: kvm: Reachable BUG() on out-of-bounds guest IRQ
(CVE-2017-1000252, Moderate)

* Kernel: KVM: DoS via write flood to I/O port 0x80 (CVE-2017-1000407,
Moderate)

* kernel: Stack information leak in the EFS element (CVE-2017-1000410,
Moderate)

* kernel: Kernel address information leak in drivers/acpi/
sbshc.c:acpi_smbus_hc_add() function potentially allowing KASLR bypass
(CVE-2018-5750, Moderate)

* kernel: Race condition in sound system can lead to denial of service
(CVE-2018-1000004, Moderate)

* kernel: multiple Low security impact security issues (CVE-2016-3672,
CVE-2017-14140, CVE-2017-15116, CVE-2017-15127, CVE-2018-6927, Low)

Red Hat would like to thank Eyal Itkin for reporting CVE-2016-8633;
Google Project Zero for reporting CVE-2017-5754; Mohamed Ghannam for
reporting CVE-2017-8824; Jim Mattson (Google.com) for reporting
CVE-2017-12154; Vitaly Mayatskih for reporting CVE-2017-12190; Andrea
Arcangeli (Engineering) for reporting CVE-2017-15126; Kirill Tkhai for
reporting CVE-2017-15129; Jan H. Schonherr (Amazon) for reporting
CVE-2017-1000252; and Armis Labs for reporting CVE-2017-1000410. The
CVE-2017-15121 issue was discovered by Miklos Szeredi (Red Hat) and
the CVE-2017-15116 issue was discovered by ChunYu Wang (Red Hat).

For more details about the security issue(s), including the impact, a
CVSS score, and other related information, refer to the CVE page(s)
listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.5 Release Notes linked from the References section."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2018-April/007619.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected kernel packages."
  );
  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:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-abi-whitelists");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python-perf");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/04/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/04/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/04/18");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
include("ksplice.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 7", "Oracle Linux " + os_ver);

if (!get_kb_item("Host/RedHat/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, "Oracle Linux", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2016-3672", "CVE-2016-7913", "CVE-2016-8633", "CVE-2017-1000252", "CVE-2017-1000407", "CVE-2017-1000410", "CVE-2017-12154", "CVE-2017-12190", "CVE-2017-13166", "CVE-2017-13305", "CVE-2017-14140", "CVE-2017-15116", "CVE-2017-15121", "CVE-2017-15126", "CVE-2017-15127", "CVE-2017-15129", "CVE-2017-15265", "CVE-2017-15274", "CVE-2017-17448", "CVE-2017-17449", "CVE-2017-17558", "CVE-2017-18017", "CVE-2017-18203", "CVE-2017-18270", "CVE-2017-7294", "CVE-2017-8824", "CVE-2017-9725", "CVE-2018-1000004", "CVE-2018-5750", "CVE-2018-6927");  
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2018-1062");
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

kernel_major_minor = get_kb_item("Host/uname/major_minor");
if (empty_or_null(kernel_major_minor)) exit(1, "Unable to determine kernel major-minor level.");
expected_kernel_major_minor = "3.10";
if (kernel_major_minor != expected_kernel_major_minor)
  audit(AUDIT_OS_NOT, "running kernel level " + expected_kernel_major_minor + ", it is running kernel level " + kernel_major_minor);

flag = 0;
if (rpm_exists(release:"EL7", rpm:"kernel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-3.10.0-862.el7")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-abi-whitelists-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-abi-whitelists-3.10.0-862.el7")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-debug-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-debug-3.10.0-862.el7")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-debug-devel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-debug-devel-3.10.0-862.el7")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-devel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-devel-3.10.0-862.el7")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-doc-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-doc-3.10.0-862.el7")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-headers-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-headers-3.10.0-862.el7")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-tools-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-tools-3.10.0-862.el7")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-tools-libs-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-tools-libs-3.10.0-862.el7")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-tools-libs-devel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-tools-libs-devel-3.10.0-862.el7")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"perf-3.10.0-862.el7")) flag++;
if (rpm_check(release:"EL7", cpu:"x86_64", reference:"python-perf-3.10.0-862.el7")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "affected kernel");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:1062 and 
# CentOS Errata and Security Advisory 2018:1062 respectively.
#

include("compat.inc");

if (description)
{
  script_id(109380);
  script_version("1.8");
  script_cvs_date("Date: 2019/12/31");

  script_cve_id("CVE-2016-3672", "CVE-2016-7913", "CVE-2016-8633", "CVE-2017-1000252", "CVE-2017-1000407", "CVE-2017-1000410", "CVE-2017-12154", "CVE-2017-12190", "CVE-2017-13166", "CVE-2017-13305", "CVE-2017-14140", "CVE-2017-15116", "CVE-2017-15121", "CVE-2017-15126", "CVE-2017-15127", "CVE-2017-15129", "CVE-2017-15265", "CVE-2017-15274", "CVE-2017-17448", "CVE-2017-17449", "CVE-2017-17558", "CVE-2017-18017", "CVE-2017-18203", "CVE-2017-18270", "CVE-2017-7294", "CVE-2017-8824", "CVE-2017-9725", "CVE-2018-1000004", "CVE-2018-5750", "CVE-2018-6927");
  script_xref(name:"RHSA", value:"2018:1062");

  script_name(english:"CentOS 7 : kernel (CESA-2018:1062)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es) :

* hw: cpu: speculative execution permission faults handling
(CVE-2017-5754, Important, KVM for Power)

* kernel: Buffer overflow in firewire driver via crafted incoming
packets (CVE-2016-8633, Important)

* kernel: Use-after-free vulnerability in DCCP socket (CVE-2017-8824,
Important)

* Kernel: kvm: nVMX: L2 guest could access hardware(L0) CR8 register
(CVE-2017-12154, Important)

* kernel: v4l2: disabled memory access protection mechanism allowing
privilege escalation (CVE-2017-13166, Important)

* kernel: media: use-after-free in [tuner-xc2028] media driver
(CVE-2016-7913, Moderate)

* kernel: drm/vmwgfx: fix integer overflow in
vmw_surface_define_ioctl() (CVE-2017-7294, Moderate)

* kernel: Incorrect type conversion for size during dma allocation
(CVE-2017-9725, Moderate)

* kernel: memory leak when merging buffers in SCSI IO vectors
(CVE-2017-12190, Moderate)

* kernel: vfs: BUG in truncate_inode_pages_range() and fuse client
(CVE-2017-15121, Moderate)

* kernel: Use-after-free in userfaultfd_event_wait_completion function
in userfaultfd.c (CVE-2017-15126, Moderate)

* kernel: net: double-free and memory corruption in get_net_ns_by_id()
(CVE-2017-15129, Moderate)

* kernel: Use-after-free in snd_seq_ioctl_create_port()
(CVE-2017-15265, Moderate)

* kernel: Missing capabilities check in
net/netfilter/nfnetlink_cthelper.c allows for unprivileged access to
systemwide nfnl_cthelper_list structure (CVE-2017-17448, Moderate)

* kernel: Missing namespace check in net/netlink/af_netlink.c allows
for network monitors to observe systemwide activity (CVE-2017-17449,
Moderate)

* kernel: Unallocated memory access by malicious USB device via
bNumInterfaces overflow (CVE-2017-17558, Moderate)

* kernel: netfilter: use-after-free in tcpmss_mangle_packet function
in net/ netfilter/xt_TCPMSS.c (CVE-2017-18017, Moderate)

* kernel: Race condition in drivers/md/dm.c:dm_get_from_kobject()
allows local users to cause a denial of service (CVE-2017-18203,
Moderate)

* kernel: kvm: Reachable BUG() on out-of-bounds guest IRQ
(CVE-2017-1000252, Moderate)

* Kernel: KVM: DoS via write flood to I/O port 0x80 (CVE-2017-1000407,
Moderate)

* kernel: Stack information leak in the EFS element (CVE-2017-1000410,
Moderate)

* kernel: Kernel address information leak in drivers/acpi/
sbshc.c:acpi_smbus_hc_add() function potentially allowing KASLR bypass
(CVE-2018-5750, Moderate)

* kernel: Race condition in sound system can lead to denial of service
(CVE-2018-1000004, Moderate)

* kernel: multiple Low security impact security issues (CVE-2016-3672,
CVE-2017-14140, CVE-2017-15116, CVE-2017-15127, CVE-2018-6927, Low)

Red Hat would like to thank Eyal Itkin for reporting CVE-2016-8633;
Google Project Zero for reporting CVE-2017-5754; Mohamed Ghannam for
reporting CVE-2017-8824; Jim Mattson (Google.com) for reporting
CVE-2017-12154; Vitaly Mayatskih for reporting CVE-2017-12190; Andrea
Arcangeli (Engineering) for reporting CVE-2017-15126; Kirill Tkhai for
reporting CVE-2017-15129; Jan H. Schonherr (Amazon) for reporting
CVE-2017-1000252; and Armis Labs for reporting CVE-2017-1000410. The
CVE-2017-15121 issue was discovered by Miklos Szeredi (Red Hat) and
the CVE-2017-15116 issue was discovered by ChunYu Wang (Red Hat).

For more details about the security issue(s), including the impact, a
CVSS score, and other related information, refer to the CVE page(s)
listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.5 Release Notes linked from the References section."
  );
  # https://lists.centos.org/pipermail/centos-cr-announce/2018-April/005226.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?14036024"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected kernel packages."
  );
  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-2017-18017");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  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-doc");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/04/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/04/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/04/27");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"CentOS Local Security Checks");

  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:"kernel-abi-whitelists-3.10.0-862.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"kernel-doc-3.10.0-862.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, "kernel-abi-whitelists / kernel-doc");
}

#
# (C) Tenable Network Security, Inc.
#

# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2019-0076. The text
# itself is copyright (C) ZTE, Inc.

include("compat.inc");

if (description)
{
  script_id(127283);
  script_version("1.2");
  script_cvs_date("Date: 2019/09/24 11:01:33");

  script_cve_id(
    "CVE-2017-7294",
    "CVE-2017-15121",
    "CVE-2017-15126",
    "CVE-2018-3646",
    "CVE-2019-6974",
    "CVE-2019-7221"
  );
  script_bugtraq_id(107127, 107294);

  script_name(english:"NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0076)");

  script_set_attribute(attribute:"synopsis", value:
"The remote machine is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has kernel-rt packages installed that are affected
by multiple vulnerabilities:

  - A non-privileged user is able to mount a fuse filesystem
    on RHEL 6 or 7 and crash a system if an application
    punches a hole in a file that does not end aligned to a
    page boundary. (CVE-2017-15121)

  - A flaw was found in the Linux kernel's handling of fork
    failure when dealing with event messages in the
    userfaultfd code. Failure to fork correctly can create a
    fork event that will be removed from an already freed
    list of events. (CVE-2017-15126)

  - An out-of-bounds write vulnerability was found in the
    Linux kernel's vmw_surface_define_ioctl() function, in
    the 'drivers/gpu/drm/vmwgfx/vmwgfx_surface.c' file. Due
    to the nature of the flaw, privilege escalation cannot
    be fully ruled out, although we believe it is unlikely.
    (CVE-2017-7294)

  - Modern operating systems implement virtualization of
    physical memory to efficiently use available system
    resources and provide inter-domain protection through
    access control and isolation. The L1TF issue was found
    in the way the x86 microprocessor designs have
    implemented speculative execution of instructions (a
    commonly used performance optimization) in combination
    with handling of page-faults caused by terminated
    virtual to physical address resolving process. As a
    result, an unprivileged attacker could use this flaw to
    read privileged memory of the kernel or other processes
    and/or cross guest/host boundaries to read host memory
    by conducting targeted cache side-channel attacks.
    (CVE-2018-3646)

  - A use-after-free vulnerability was found in the way the
    Linux kernel's KVM hypervisor implements its device
    control API. While creating a device via
    kvm_ioctl_create_device(), the device holds a reference
    to a VM object, later this reference is transferred to
    the caller's file descriptor table. If such file
    descriptor was to be closed, reference count to the VM
    object could become zero, potentially leading to a use-
    after-free issue. A user/process could use this flaw to
    crash the guest VM resulting in a denial of service
    issue or, potentially, gain privileged access to a
    system. (CVE-2019-6974)

  - A use-after-free vulnerability was found in the way the
    Linux kernel's KVM hypervisor emulates a preemption
    timer for L2 guests when nested (=1) virtualization is
    enabled. This high resolution timer(hrtimer) runs when a
    L2 guest is active. After VM exit, the sync_vmcs12()
    timer object is stopped. The use-after-free occurs if
    the timer object is freed before calling sync_vmcs12()
    routine. A guest user/process could use this flaw to
    crash the host kernel resulting in a denial of service
    or, potentially, gain privileged access to a system.
    (CVE-2019-7221)

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:"http://security.gd-linux.com/notice/NS-SA-2019-0076");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL kernel-rt packages. Note that updated packages may not be available yet. Please contact ZTE
for more information.");
  script_set_cvss_base_vector("CVSS2#AV:N/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:H/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-2017-15126");
  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:"2017/03/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"NewStart CGSL Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");

  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/ZTE-CGSL/release");
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, "NewStart Carrier Grade Server Linux");

if (release !~ "CGSL CORE 5.04" &&
    release !~ "CGSL MAIN 5.04")
  audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.04 / NewStart CGSL MAIN 5.04');

if (!get_kb_item("Host/ZTE-CGSL/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, "NewStart Carrier Grade Server Linux", cpu);

flag = 0;

pkgs = {
  "CGSL CORE 5.04": [
    "kernel-rt-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debug-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debug-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debug-devel-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debug-kvm-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debug-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debuginfo-common-x86_64-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-devel-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-doc-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-kvm-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-trace-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-trace-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-trace-devel-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-trace-kvm-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-trace-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4"
  ],
  "CGSL MAIN 5.04": [
    "kernel-rt-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debug-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debug-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debug-devel-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debug-kvm-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debug-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-debuginfo-common-x86_64-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-devel-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-doc-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-kvm-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-trace-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-trace-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-trace-devel-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-trace-kvm-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4",
    "kernel-rt-trace-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.cgslv5_4.13.254.g9de87d4"
  ]
};
pkg_list = pkgs[release];

foreach (pkg in pkg_list)
  if (rpm_check(release:"ZTE " + release, reference:pkg)) 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, "kernel-rt");
}