SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2022:0177-1)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2022:0177-1. The text itself
# is copyright (C) SUSE.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(157070);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/17");

  script_cve_id("CVE-2021-20196");
  script_xref(name:"SuSE", value:"SUSE-SU-2022:0177-1");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : qemu (SUSE-SU-2022:0177-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by a vulnerability as referenced in
the SUSE-SU-2022:0177-1 advisory.

  - A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while
    processing read/write ioport commands if the selected floppy drive is not initialized with a block device.
    This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of
    service. The highest threat from this vulnerability is to system availability. (CVE-2021-20196)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1181361");
  script_set_attribute(attribute:"see_also", value:"https://lists.suse.com/pipermail/sle-updates/2022-January/021445.html");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-20196");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:P");
  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:C/C:N/I:N/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-2021-20196");

  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:"2021/05/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/01/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/01/26");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-arm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-alsa");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-pa");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-audio-spice");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-iscsi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-rbd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-block-ssh");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-chardev-baum");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-chardev-spice");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-guest-agent");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-hw-display-qxl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-hw-display-virtio-gpu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-hw-display-virtio-gpu-pci");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-hw-display-virtio-vga");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-hw-s390x-virtio-gpu-ccw");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-hw-usb-redirect");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ipxe");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ksm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-lang");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ppc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-s390x");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-seabios");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-sgabios");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-skiboot");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-curses");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-gtk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-opengl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-spice-app");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-ui-spice-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-vgabios");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:qemu-x86");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLED15 / SLES15', 'SUSE (' + os_ver + ')');

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'SUSE (' + os_ver + ')', cpu);

var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLED15" && (! preg(pattern:"^(3)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLED15 SP3", os_ver + " SP" + service_pack);
if (os_ver == "SLES15" && (! preg(pattern:"^(3)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES15 SP3", os_ver + " SP" + service_pack);

var pkgs = [
    {'reference':'qemu-tools-5.2.0-150300.109.2', 'sp':'3', 'release':'SLED15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-basesystem-release-15.3']},
    {'reference':'qemu-tools-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-basesystem-release-15.3']},
    {'reference':'qemu-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-arm-5.2.0-150300.109.2', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-audio-alsa-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-audio-pa-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-audio-spice-5.2.0-150300.109.2', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-audio-spice-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-block-curl-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-block-iscsi-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-block-rbd-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-block-ssh-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-chardev-baum-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-chardev-spice-5.2.0-150300.109.2', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-chardev-spice-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-guest-agent-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-hw-display-qxl-5.2.0-150300.109.2', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-hw-display-qxl-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-hw-display-virtio-gpu-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-hw-display-virtio-gpu-pci-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-hw-display-virtio-vga-5.2.0-150300.109.2', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-hw-display-virtio-vga-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-hw-s390x-virtio-gpu-ccw-5.2.0-150300.109.2', 'sp':'3', 'cpu':'s390x', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-hw-usb-redirect-5.2.0-150300.109.2', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-hw-usb-redirect-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-ipxe-1.0.0+-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-ksm-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-kvm-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-lang-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-s390x-5.2.0-150300.109.2', 'sp':'3', 'cpu':'s390x', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-seabios-1.14.0_0_g155821a-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-sgabios-8-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-skiboot-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-ui-curses-5.2.0-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-ui-gtk-5.2.0-150300.109.2', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-ui-gtk-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-ui-opengl-5.2.0-150300.109.2', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-ui-opengl-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-ui-spice-app-5.2.0-150300.109.2', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-ui-spice-app-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-ui-spice-core-5.2.0-150300.109.2', 'sp':'3', 'cpu':'aarch64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-ui-spice-core-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-vgabios-1.14.0_0_g155821a-150300.109.2', 'sp':'3', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']},
    {'reference':'qemu-x86-5.2.0-150300.109.2', 'sp':'3', 'cpu':'x86_64', 'release':'SLES15', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-module-server-applications-release-15.3']}
];

var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var exists_check = NULL;
  var rpm_spec_vers_cmp = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && _release) {
    if (exists_check) {
      var check_flag = 0;
      foreach var check (exists_check) {
        if (!rpm_exists(release:_release, rpm:check)) continue;
        check_flag++;
      }
      if (!check_flag) continue;
    }
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'qemu / qemu-arm / qemu-audio-alsa / qemu-audio-pa / etc');
}