openSUSE 15 Security Update : libvirt (openSUSE-SU-2021:2812-1)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# openSUSE Security Update openSUSE-SU-2021:2812-1. The text itself
# is copyright (C) SUSE.
##

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

if (description)
{
  script_id(152757);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/04");

  script_cve_id("CVE-2021-3631", "CVE-2021-3667");

  script_name(english:"openSUSE 15 Security Update : libvirt (openSUSE-SU-2021:2812-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in
the openSUSE-SU-2021:2812-1 advisory.

  - A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This
    flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out
    of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity.
    (CVE-2021-3631)

  - An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in
    the storagePoolLookupByTargetPath function where a locked virStoragePoolObj object is not properly
    released on ACL permission failure. Clients connecting to the read-write socket with limited ACL
    permissions could use this flaw to acquire the lock and prevent other users from accessing storage
    pool/volume APIs, resulting in a denial of service condition. The highest threat from this vulnerability
    is to system availability. (CVE-2021-3667)

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/1184253");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1187871");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1188232");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1188843");
  # https://lists.opensuse.org/archives/list/[email protected]/thread/K4QAQWSVV2PRNPOI4R3VBPRTRXS5NLQ5/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?598ec698");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3631");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-3667");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-3631");

  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:"2021/08/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/08/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/08/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-admin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-bash-completion");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-config-network");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-config-nwfilter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-interface");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-libxl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-lxc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-network");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-nodedev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-nwfilter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-qemu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-secret");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-storage");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-storage-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-storage-disk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-storage-gluster");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-storage-iscsi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-storage-iscsi-direct");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-storage-logical");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-storage-mpath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-storage-rbd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-driver-storage-scsi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-hooks");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-lxc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-qemu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-daemon-xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-devel-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-lock-sanlock");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libvirt-nss");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:wireshark-plugin-libvirt");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:15.3");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021-2023 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('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item('Host/SuSE/release');
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, 'openSUSE');
var os_ver = pregmatch(pattern: "^SUSE([\d.]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'openSUSE');
os_ver = os_ver[1];
if (release !~ "^(SUSE15\.3)$") audit(AUDIT_OS_RELEASE_NOT, 'openSUSE', '15.3', release);
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, 'openSUSE ' + os_ver, cpu);

var pkgs = [
    {'reference':'libvirt-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-admin-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-bash-completion-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-client-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-config-network-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-config-nwfilter-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-interface-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-libxl-7.1.0-6.5.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-lxc-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-network-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-nodedev-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-nwfilter-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-qemu-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-secret-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-storage-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-storage-core-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-storage-disk-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-storage-gluster-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-storage-iscsi-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-storage-iscsi-direct-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-storage-logical-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-storage-mpath-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-storage-rbd-7.1.0-6.5.1', 'cpu':'aarch64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-storage-rbd-7.1.0-6.5.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-driver-storage-scsi-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-hooks-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-lxc-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-qemu-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-daemon-xen-7.1.0-6.5.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-devel-32bit-7.1.0-6.5.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-devel-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-libs-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-lock-sanlock-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libvirt-nss-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'wireshark-plugin-libvirt-7.1.0-6.5.1', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var reference = NULL;
  var release = NULL;
  var cpu = 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['cpu'])) cpu = package_array['cpu'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (reference && release) {
    if (rpm_check(release:release, 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, 'libvirt / libvirt-admin / libvirt-bash-completion / libvirt-client / etc');
}