Vulnerabilities > CVE-2019-9213 - 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-2019:0831. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(124257);
  script_version("1.7");
  script_cvs_date("Date: 2020/01/24");

  script_cve_id("CVE-2018-13053", "CVE-2018-13094", "CVE-2018-14734", "CVE-2018-17972", "CVE-2018-18281", "CVE-2018-18386", "CVE-2018-18397", "CVE-2019-9213");
  script_xref(name:"RHSA", value:"2019:0831");

  script_name(english:"RHEL 7 : kernel-alt (RHSA-2019:0831)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for kernel-alt 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-alt packages provide the Linux kernel version 4.x.

Security Fix(es) :

* kernel: lack of check for mmap minimum address in expand_downwards
in mm/ mmap.c leads to NULL pointer dereferences exploit on non-SMAP
platforms (CVE-2019-9213)

* kernel: use-after-free in ucma_leave_multicast in
drivers/infiniband/core/ ucma.c (CVE-2018-14734)

* kernel: Unprivileged users able to inspect kernel stacks of
arbitrary tasks (CVE-2018-17972)

* kernel: TLB flush happens too late on mremap (CVE-2018-18281)

* kernel: Type confusion in drivers/tty/n_tty.c allows for a denial of
service (CVE-2018-18386)

* kernel: userfaultfd bypasses tmpfs file permissions (CVE-2018-18397)

* kernel: Integer overflow in the alarm_timer_nsleep function
(CVE-2018-13053)

* kernel: NULL pointer dereference in xfs_da_shrink_inode function
(CVE-2018-13094)

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

Bug Fix(es) :

* Failed to boot with ftrace=function in kvm with 2vcpu (BZ#1501024)

* [ALT-7.5][x86_64] perf test 63 - inet_pton fails on x86_64
(BZ#1518836)

* BUG: potential out-of-bounds string access when forcing a SELinux
label on a file (BZ#1595706)

* stack out-of-bounds in smb{2,3}_create_lease_buf() on SMB2/SMB3
mounts (BZ# 1598757)

* [ALT-7.6][KVM][PANIC] ltp/lite proc01 - Unable to handle kernel
paging request at virtual address ffff7fe000200018 (BZ#1623193)

* Kernel lock up due to read/write lock (BZ#1636261)

* [RHEL-ALT] Fix potential Spectre v1 in tty code (BZ#1639679)

* [Huawei AArch64 7.6 Bug] HNS3: Vlan on HNS3 NIC cannot communicate
(BZ# 1639713)

* [RHEL7.6-ALT][AWS] backport 'nvme: update timeout module parameter
type' (BZ#1654958)

* ignore STABLE_FLAG of rmap_item->address in rmap_walk_ksm
(BZ#1663565)

* RHEL-Alt-7.6 - kernel: zcrypt: fix specification exception on z196
at ap probe (BZ#1670018)

* [Huawei AArch64 7.6 Bug] Flock over NFSv3 failed (BZ#1670650)

* [Huawei AArch64 7.6/7.6-z Bug] HNS3: if a single transmit
packet(skb) has more than 8 frags, will cause the NIC to be
unavailable (BZ#1677643)

* krb5{,i,p} doesn't work with older enctypes on aarch64 (BZ#1678922)

Users of kernel are advised to upgrade to these updated packages,
which fix these bugs."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2019:0831"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-13053"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-13094"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-14734"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-17972"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-18281"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-18386"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-18397"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-9213"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/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:F/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:"metasploit_name", value:'Reliable Datagram Sockets (RDS) rds_atomic_free_op NULL pointer dereference Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-abi-whitelists");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo-common-s390x");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/07/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/04/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/24");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

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

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + 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$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2018-13053", "CVE-2018-13094", "CVE-2018-14734", "CVE-2018-17972", "CVE-2018-18281", "CVE-2018-18386", "CVE-2018-18397", "CVE-2019-9213");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for RHSA-2019:0831");
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2019:0831";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", reference:"kernel-abi-whitelists-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-debug-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-debug-debuginfo-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-debug-devel-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-debuginfo-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-debuginfo-common-s390x-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-devel-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", reference:"kernel-doc-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-headers-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-kdump-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-kdump-debuginfo-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-kdump-devel-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"perf-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"perf-debuginfo-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"python-perf-4.14.0-115.7.1.el7a")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"python-perf-debuginfo-4.14.0-115.7.1.el7a")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel / kernel-abi-whitelists / kernel-debug / etc");
  }
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3931-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(123678);
  script_version("1.6");
  script_cvs_date("Date: 2020/01/27");

  script_cve_id("CVE-2018-14678", "CVE-2018-18021", "CVE-2018-19824", "CVE-2019-3459", "CVE-2019-3460", "CVE-2019-6974", "CVE-2019-7221", "CVE-2019-7222", "CVE-2019-7308", "CVE-2019-8912", "CVE-2019-8980", "CVE-2019-9213");
  script_xref(name:"USN", value:"3931-1");

  script_name(english:"Ubuntu 18.04 LTS : linux, linux-aws, linux-gcp, linux-kvm, linux-oem, linux-oracle, (USN-3931-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"M. Vefa Bicakci and Andy Lutomirski discovered that the kernel did not
properly set up all arguments to an error handler callback used when
running as a paravirtualized guest. An unprivileged attacker in a
paravirtualized guest VM could use this to cause a denial of service
(guest VM crash). (CVE-2018-14678)

It was discovered that the KVM implementation in the Linux kernel on
ARM 64bit processors did not properly handle some ioctls. An attacker
with the privilege to create KVM-based virtual machines could use this
to cause a denial of service (host system crash) or execute arbitrary
code in the host. (CVE-2018-18021)

Mathias Payer and Hui Peng discovered a use-after-free vulnerability
in the Advanced Linux Sound Architecture (ALSA) subsystem. A
physically proximate attacker could use this to cause a denial of
service (system crash). (CVE-2018-19824)

Shlomi Oberman, Yuli Shapiro, and Ran Menscher discovered an
information leak in the Bluetooth implementation of the Linux kernel.
An attacker within Bluetooth range could use this to expose sensitive
information (kernel memory). (CVE-2019-3459, CVE-2019-3460)

Jann Horn discovered that the KVM implementation in the Linux kernel
contained a use-after-free vulnerability. An attacker in a guest VM
with access to /dev/kvm could use this to cause a denial of service
(guest VM crash). (CVE-2019-6974)

Jim Mattson and Felix Wilhelm discovered a use-after-free
vulnerability in the KVM subsystem of the Linux kernel, when using
nested virtual machines. A local attacker in a guest VM could use this
to cause a denial of service (system crash) or possibly execute
arbitrary code in the host system. (CVE-2019-7221)

Felix Wilhelm discovered that an information leak vulnerability
existed in the KVM subsystem of the Linux kernel, when nested
virtualization is used. A local attacker could use this to expose
sensitive information (host system memory to a guest VM).
(CVE-2019-7222)

Jann Horn discovered that the eBPF implementation in the Linux kernel
was insufficiently hardened against Spectre V1 attacks. A local
attacker could use this to expose sensitive information.
(CVE-2019-7308)

It was discovered that a use-after-free vulnerability existed in the
user- space API for crypto (af_alg) implementation in the Linux
kernel. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2019-8912)

It was discovered that the Linux kernel did not properly deallocate
memory when handling certain errors while reading files. A local
attacker could use this to cause a denial of service (excessive memory
consumption). (CVE-2019-8980)

Jann Horn discovered that the mmap implementation in the Linux kernel
did not properly check for the mmap minimum address in some
situations. A local attacker could use this to assist exploiting a
kernel NULL pointer dereference vulnerability. (CVE-2019-9213).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/3931-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected 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:F/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:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-8912");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Reliable Datagram Sockets (RDS) rds_atomic_free_op NULL pointer dereference Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-aws");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-gcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-generic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-generic-lpae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-lowlatency");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-oem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-oracle");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-raspi2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.15-snapdragon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-aws");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-gcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-generic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-gke");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-oem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-oracle");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-snapdragon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/07/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/04/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/03");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2019-2020 Canonical, Inc. / NASL script (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("ksplice.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(18\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 18.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2018-14678", "CVE-2018-18021", "CVE-2018-19824", "CVE-2019-3459", "CVE-2019-3460", "CVE-2019-6974", "CVE-2019-7221", "CVE-2019-7222", "CVE-2019-7308", "CVE-2019-8912", "CVE-2019-8980", "CVE-2019-9213");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-3931-1");
  }
  else
  {
    _ubuntu_report = ksplice_reporting_text();
  }
}

flag = 0;

if (ubuntu_check(osver:"18.04", pkgname:"linux-image-4.15.0-1010-oracle", pkgver:"4.15.0-1010.12")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-4.15.0-1029-gcp", pkgver:"4.15.0-1029.31")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-4.15.0-1031-kvm", pkgver:"4.15.0-1031.31")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-4.15.0-1033-raspi2", pkgver:"4.15.0-1033.35")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-4.15.0-1035-aws", pkgver:"4.15.0-1035.37")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-4.15.0-1035-oem", pkgver:"4.15.0-1035.40")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-4.15.0-47-generic", pkgver:"4.15.0-47.50")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-4.15.0-47-generic-lpae", pkgver:"4.15.0-47.50")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-4.15.0-47-lowlatency", pkgver:"4.15.0-47.50")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-4.15.0-47-snapdragon", pkgver:"4.15.0-47.50")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-aws", pkgver:"4.15.0.1035.34")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-gcp", pkgver:"4.15.0.1029.31")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-generic", pkgver:"4.15.0.47.49")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-generic-lpae", pkgver:"4.15.0.47.49")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-gke", pkgver:"4.15.0.1029.31")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-kvm", pkgver:"4.15.0.1031.31")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-lowlatency", pkgver:"4.15.0.47.49")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-oem", pkgver:"4.15.0.1035.40")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-oracle", pkgver:"4.15.0.1010.13")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-raspi2", pkgver:"4.15.0.1033.31")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-snapdragon", pkgver:"4.15.0.47.49")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"linux-image-virtual", pkgver:"4.15.0.47.49")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "linux-image-4.15-aws / linux-image-4.15-gcp / etc");
}