Vulnerabilities > CVE-2017-15116 - NULL Pointer Dereference vulnerability in multiple products

#
# (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 Oracle Linux Security Advisory ELSA-2018-4108.
#

include("compat.inc");

if (description)
{
  script_id(109828);
  script_version("1.7");
  script_cvs_date("Date: 2019/09/27 13:00:39");

  script_cve_id("CVE-2017-15116", "CVE-2017-15129", "CVE-2017-15299", "CVE-2017-16994", "CVE-2017-17448", "CVE-2017-17449", "CVE-2017-17741", "CVE-2017-7294", "CVE-2018-5332");

  script_name(english:"Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4108)");
  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:
"Description of changes:

[4.1.12-124.15.1.el7uek]
- netfilter: nfnetlink_cthelper: Add missing permission checks (Kevin 
Cernekee)  [Orabug: 27260771]  {CVE-2017-17448}
- netlink: Add netns check on taps (Kevin Cernekee)  [Orabug: 27260799] 
{CVE-2017-17449}
- KVM: Fix stack-out-of-bounds read in write_mmio (Wanpeng Li)  [Orabug: 
27290606]  {CVE-2017-17741} {CVE-2017-17741}
- xprtrdma: Detect unreachable NFS/RDMA servers more reliably (Chuck 
Lever)  [Orabug: 27587008]
- sunrpc: Export xprt_force_disconnect() (Chuck Lever)  [Orabug: 27587008]
- sunrpc: Allow xprt->ops->timer method to sleep (Chuck Lever)  [Orabug: 
27587008]
- KVM: nVMX: fix guest CR4 loading when emulating L2 to L1 exit 
(Haozhong Zhang)  [Orabug: 27720128]
- x86/microcode: probe CPU features on microcode update (Ankur Arora) 
[Orabug: 27878230]
- x86/microcode: microcode_write() should not reference boot_cpu_data 
(Ankur Arora)  [Orabug: 27878230]
- x86/cpufeatures: use cpu_data in init_scattered_cpuid_flags() (Ankur 
Arora)  [Orabug: 27878230]
- mm/pagewalk.c: report holes in hugetlb ranges (Jann Horn)  [Orabug: 
27913118]  {CVE-2017-16994}
- KEYS: don't let add_key() update an uninstantiated key (David Howells) 
  [Orabug: 27913330]  {CVE-2017-15299}
- drm/vmwgfx: NULL pointer dereference in vmw_surface_define_ioctl() 
(Murray McAllister)  [Orabug: 27913367]  {CVE-2017-7294}
- vmscan: Support multiple kswapd threads per node (Buddy Lumpkin) 
[Orabug: 27913411]
- tcp: don't use F-RTO on non-recurring timeouts (Yuchung Cheng) 
[Orabug: 27901860]
- net/rds: ib: Release correct number of frags (H&aring kon Bugge)  [Orabug: 
27924161]
- crypto: rng - Remove old low-level rng interface (Herbert Xu) 
[Orabug: 27926676]  {CVE-2017-15116}
- crypto: drbg - Convert to new rng interface (Herbert Xu)  [Orabug: 
27926676]  {CVE-2017-15116}
- crypto: ansi_cprng - Convert to new rng interface (Herbert Xu) 
[Orabug: 27926676]  {CVE-2017-15116}
- crypto: krng - Convert to new rng interface (Herbert Xu)  [Orabug: 
27926676]  {CVE-2017-15116}
- RDS: Heap OOB write in rds_message_alloc_sgs() (Mohamed Ghannam) 
[Orabug: 27934066]  {CVE-2018-5332}
- net: Fix double free and memory corruption in get_net_ns_by_id() (Eric 
W. Biederman)  [Orabug: 27934789]  {CVE-2017-15129}"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2018-May/007731.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2018-May/007732.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected unbreakable enterprise kernel packages."
  );
  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:L/AC:L/PR:L/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-uek");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/03/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/05/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/05/16");
  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:"^(6|7)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 6 / 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-2017-15116", "CVE-2017-15129", "CVE-2017-15299", "CVE-2017-16994", "CVE-2017-17448", "CVE-2017-17449", "CVE-2017-17741", "CVE-2017-7294", "CVE-2018-5332");  
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2018-4108");
  }
  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 = "4.1";
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:"EL6", rpm:"kernel-uek-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-4.1.12-124.15.1.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-debug-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-debug-4.1.12-124.15.1.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-debug-devel-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-debug-devel-4.1.12-124.15.1.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-devel-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-devel-4.1.12-124.15.1.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-doc-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-doc-4.1.12-124.15.1.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-firmware-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-firmware-4.1.12-124.15.1.el6uek")) flag++;

if (rpm_exists(release:"EL7", rpm:"kernel-uek-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-4.1.12-124.15.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-debug-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-debug-4.1.12-124.15.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-debug-devel-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-debug-devel-4.1.12-124.15.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-devel-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-devel-4.1.12-124.15.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-doc-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-doc-4.1.12-124.15.1.el7uek")) flag++;
if (rpm_exists(release:"EL7", rpm:"kernel-uek-firmware-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-firmware-4.1.12-124.15.1.el7uek")) 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");
}