RHEL 7 : Red Hat Virtualization (RHSA-2020:4114)

##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2020:4114. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(141123);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/04");

  script_cve_id("CVE-2020-10722", "CVE-2020-10723");
  script_xref(name:"RHSA", value:"2020:4114");
  script_xref(name:"CEA-ID", value:"CEA-2021-0004");

  script_name(english:"RHEL 7 : Red Hat Virtualization (RHSA-2020:4114)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing one or more security updates for Red Hat Virtualization.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as
referenced in the RHSA-2020:4114 advisory.

    ovirt-ansible-repositories is an Ansible role used to set up the repositories required for oVirt engine or
    host installation.

    The openvswitch package contains components for enabling Open vSwitch; a software-based Ethernet virtual
    switch. It also includes OVN (Open Virtual Network) components for supporting virtual network abstraction.

    The Red Hat Virtualization Python SDK is a program that simplifies access to the Red Hat Virtualization
    API by providing an object-oriented view to developers.

    Security Fix(es):

    * dpdk: librte_vhost Interger overflow in vhost_user_set_log_base() (CVE-2020-10722)

    * dpdk: librte_vhost Integer truncation in vhost_user_check_and_alloc_queue_pair() (CVE-2020-10723)

    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):

    * Previously, during RHHI-V deployment of 3 hosts using ovirt-ansible-hosted-engine-setup, the Self-Hosted
    Engine was added to the default cluster, but the additional 2 hosts were not added.
    In this release, deployment with ovirt-ansible-hosted-engine-setup successfully adds all hosts to the
    cluster. (BZ#1855283)

    * Previously, when creating large numbers of virtual machines (~2300 VMs), the associated Data Centers
    became unresponsive, and the hosts did not have Storage Pool Managers (SPM).
    With this release, large scale deployment of virtual machines succeeds without errors. (BZ#1849558)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2020/rhsa-2020_4114.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2a3c4c93");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#moderate");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:4114");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1828867");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1828874");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1849558");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1849595");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1855283");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1873117");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL Red Hat Virtualization package based on the guidance in RHSA-2020:4114.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-10723");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(190);
  script_set_attribute(attribute:"vendor_severity", value:"Moderate");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/05/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/09/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/10/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openvswitch2.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:openvswitch2.11-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ovn2.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ovn2.11-host");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:ovn2.11-vtep");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-openvswitch2.11");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm.inc');
include('rhel.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '7')) 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);

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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var constraints = [
  {
    'repo_relative_urls': [
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/rhv-mgmt-agent/4/debug',
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/rhv-mgmt-agent/4/os',
      'content/dist/rhel-alt/server/7/7Server/power9/ppc64le/rhv-mgmt-agent/4/source/SRPMS',
      'content/dist/rhel/power-le/7/7.3/ppc64le/rhev-mgmt-agent/3/debug',
      'content/dist/rhel/power-le/7/7.3/ppc64le/rhev-mgmt-agent/3/os',
      'content/dist/rhel/power-le/7/7.3/ppc64le/rhev-mgmt-agent/3/source/SRPMS',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-mgmt-agent/3/debug',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-mgmt-agent/3/os',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-mgmt-agent/3/source/SRPMS',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-tools/3/debug',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-tools/3/os',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhev-tools/3/source/SRPMS',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-mgmt-agent/4/debug',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-mgmt-agent/4/os',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-mgmt-agent/4/source/SRPMS',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-tools/4/debug',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-tools/4/os',
      'content/dist/rhel/power-le/7/7Server/ppc64le/rhv-tools/4/source/SRPMS',
      'content/dist/rhel/power/7/7Server/ppc64/rhev-tools/3/debug',
      'content/dist/rhel/power/7/7Server/ppc64/rhev-tools/3/os',
      'content/dist/rhel/power/7/7Server/ppc64/rhev-tools/3/source/SRPMS',
      'content/dist/rhel/server/7/7.3/x86_64/rhev-mgmt-agent/3/debug',
      'content/dist/rhel/server/7/7.3/x86_64/rhev-mgmt-agent/3/os',
      'content/dist/rhel/server/7/7.3/x86_64/rhev-mgmt-agent/3/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhev-mgmt-agent/3/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhev-mgmt-agent/3/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhev-mgmt-agent/3/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhevh/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhevh/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhevh/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-manager-tools/4/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-manager-tools/4/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-manager-tools/4/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4.3/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4.3/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4.3/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-mgmt-agent/4/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-tools/4/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-tools/4/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhv-tools/4/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4.3/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4.3/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4.3/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh-build/4/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4.3/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4.3/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4.3/source/SRPMS',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4/debug',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4/os',
      'content/dist/rhel/server/7/7Server/x86_64/rhvh/4/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'openvswitch2.11-2.11.0-54.20200327gita4efc59.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
      {'reference':'openvswitch2.11-2.11.0-54.20200327gita4efc59.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
      {'reference':'openvswitch2.11-devel-2.11.0-54.20200327gita4efc59.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
      {'reference':'openvswitch2.11-devel-2.11.0-54.20200327gita4efc59.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
      {'reference':'ovn2.11-2.11.1-44.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
      {'reference':'ovn2.11-2.11.1-44.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
      {'reference':'ovn2.11-host-2.11.1-44.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
      {'reference':'ovn2.11-host-2.11.1-44.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
      {'reference':'ovn2.11-vtep-2.11.1-44.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
      {'reference':'ovn2.11-vtep-2.11.1-44.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
      {'reference':'python-openvswitch2.11-2.11.0-54.20200327gita4efc59.el7fdp', 'cpu':'ppc64le', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'},
      {'reference':'python-openvswitch2.11-2.11.0-54.20200327gita4efc59.el7fdp', 'cpu':'x86_64', 'release':'7', 'el_string':'el7fdp', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'ovirt-'}
    ]
  }
];

var applicable_repo_urls = rhel_determine_applicable_repository_urls(constraints:constraints);
if(applicable_repo_urls == RHEL_REPOS_NO_OVERLAP_MESSAGE) exit(0, RHEL_REPO_NOT_ENABLED);

var flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  if (!empty_or_null(constraint_array['repo_relative_urls'])) repo_relative_urls = constraint_array['repo_relative_urls'];
  foreach var pkg ( constraint_array['pkgs'] ) {
    var reference = NULL;
    var _release = NULL;
    var sp = NULL;
    var _cpu = NULL;
    var el_string = NULL;
    var rpm_spec_vers_cmp = NULL;
    var epoch = NULL;
    var allowmaj = NULL;
    var exists_check = NULL;
    var cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        _release &&
        rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&
        (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&
        rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  if (isnull(applicable_repo_urls) || !applicable_repo_urls) extra = rpm_report_get() + redhat_report_repo_caveat();
  else extra = rpm_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : extra
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'openvswitch2.11 / openvswitch2.11-devel / ovn2.11 / ovn2.11-host / etc');
}