RHEL 6 : spice-server (RHSA-2018:3522)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:3522. The text 
# itself is copyright (C) Red Hat, Inc.
#

include('compat.inc');

if (description)
{
  script_id(118816);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/11/05");

  script_cve_id("CVE-2017-7506");
  script_xref(name:"RHSA", value:"2018:3522");

  script_name(english:"RHEL 6 : spice-server (RHSA-2018:3522)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat host is missing a security update for spice-server.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in
the RHSA-2018:3522 advisory.

    The Simple Protocol for Independent Computing Environments (SPICE) is a remote display protocol for
    virtual environments. SPICE users can access a virtualized desktop or server from the local system or any
    system with network access to the server. SPICE is used in Red Hat Enterprise Linux for viewing
    virtualized guests running on the Kernel-based Virtual Machine (KVM) hypervisor or on Red Hat Enterprise
    Virtualization Hypervisors.

    Security Fix(es):

    * spice: Possible buffer overflow via invalid monitor configurations (CVE-2017-7506)

    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.

    This issue was discovered by Frediano Ziglio (Red Hat).

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

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://access.redhat.com/security/data/csaf/v2/advisories/2018/rhsa-2018_3522.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b0f3fead");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2018:3522");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/updates/classification/#important");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1452606");
  script_set_attribute(attribute:"solution", value:
"Update the RHEL spice-server package based on the guidance in RHSA-2018:3522.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:N/AC:L/PR:L/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-2017-7506");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(119);
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/07/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/11/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/08");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:spice-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:spice-server-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  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) 2018-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("redhat_repos.nasl", "ssh_get_info.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: '6')) audit(AUDIT_OS_NOT, 'Red Hat 6.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/client/6/6Client/x86_64/debug',
      'content/dist/rhel/client/6/6Client/x86_64/optional/debug',
      'content/dist/rhel/client/6/6Client/x86_64/optional/os',
      'content/dist/rhel/client/6/6Client/x86_64/optional/source/SRPMS',
      'content/dist/rhel/client/6/6Client/x86_64/os',
      'content/dist/rhel/client/6/6Client/x86_64/source/SRPMS',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/debug',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/optional/debug',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/optional/os',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/optional/source/SRPMS',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/os',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/scalablefilesystem/debug',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/scalablefilesystem/os',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/scalablefilesystem/source/SRPMS',
      'content/dist/rhel/computenode/6/6ComputeNode/x86_64/source/SRPMS',
      'content/dist/rhel/server/6/6Server/x86_64/debug',
      'content/dist/rhel/server/6/6Server/x86_64/highavailability/debug',
      'content/dist/rhel/server/6/6Server/x86_64/highavailability/os',
      'content/dist/rhel/server/6/6Server/x86_64/highavailability/source/SRPMS',
      'content/dist/rhel/server/6/6Server/x86_64/loadbalancer/debug',
      'content/dist/rhel/server/6/6Server/x86_64/loadbalancer/os',
      'content/dist/rhel/server/6/6Server/x86_64/loadbalancer/source/SRPMS',
      'content/dist/rhel/server/6/6Server/x86_64/optional/debug',
      'content/dist/rhel/server/6/6Server/x86_64/optional/os',
      'content/dist/rhel/server/6/6Server/x86_64/optional/source/SRPMS',
      'content/dist/rhel/server/6/6Server/x86_64/os',
      'content/dist/rhel/server/6/6Server/x86_64/resilientstorage/debug',
      'content/dist/rhel/server/6/6Server/x86_64/resilientstorage/os',
      'content/dist/rhel/server/6/6Server/x86_64/resilientstorage/source/SRPMS',
      'content/dist/rhel/server/6/6Server/x86_64/scalablefilesystem/debug',
      'content/dist/rhel/server/6/6Server/x86_64/scalablefilesystem/os',
      'content/dist/rhel/server/6/6Server/x86_64/scalablefilesystem/source/SRPMS',
      'content/dist/rhel/server/6/6Server/x86_64/source/SRPMS',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/debug',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/optional/debug',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/optional/os',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/optional/source/SRPMS',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/os',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/scalablefilesystem/debug',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/scalablefilesystem/os',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/scalablefilesystem/source/SRPMS',
      'content/dist/rhel/workstation/6/6Workstation/x86_64/source/SRPMS',
      'content/fastrack/rhel/client/6/x86_64/debug',
      'content/fastrack/rhel/client/6/x86_64/optional/debug',
      'content/fastrack/rhel/client/6/x86_64/optional/os',
      'content/fastrack/rhel/client/6/x86_64/optional/source/SRPMS',
      'content/fastrack/rhel/client/6/x86_64/os',
      'content/fastrack/rhel/client/6/x86_64/source/SRPMS',
      'content/fastrack/rhel/computenode/6/x86_64/debug',
      'content/fastrack/rhel/computenode/6/x86_64/optional/debug',
      'content/fastrack/rhel/computenode/6/x86_64/optional/os',
      'content/fastrack/rhel/computenode/6/x86_64/optional/source/SRPMS',
      'content/fastrack/rhel/computenode/6/x86_64/os',
      'content/fastrack/rhel/computenode/6/x86_64/scalablefilesystem/debug',
      'content/fastrack/rhel/computenode/6/x86_64/scalablefilesystem/os',
      'content/fastrack/rhel/computenode/6/x86_64/scalablefilesystem/source/SRPMS',
      'content/fastrack/rhel/computenode/6/x86_64/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/debug',
      'content/fastrack/rhel/server/6/x86_64/highavailability/debug',
      'content/fastrack/rhel/server/6/x86_64/highavailability/os',
      'content/fastrack/rhel/server/6/x86_64/highavailability/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/loadbalancer/debug',
      'content/fastrack/rhel/server/6/x86_64/loadbalancer/os',
      'content/fastrack/rhel/server/6/x86_64/loadbalancer/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/optional/debug',
      'content/fastrack/rhel/server/6/x86_64/optional/os',
      'content/fastrack/rhel/server/6/x86_64/optional/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/os',
      'content/fastrack/rhel/server/6/x86_64/resilientstorage/debug',
      'content/fastrack/rhel/server/6/x86_64/resilientstorage/os',
      'content/fastrack/rhel/server/6/x86_64/resilientstorage/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/scalablefilesystem/debug',
      'content/fastrack/rhel/server/6/x86_64/scalablefilesystem/os',
      'content/fastrack/rhel/server/6/x86_64/scalablefilesystem/source/SRPMS',
      'content/fastrack/rhel/server/6/x86_64/source/SRPMS',
      'content/fastrack/rhel/workstation/6/x86_64/debug',
      'content/fastrack/rhel/workstation/6/x86_64/optional/debug',
      'content/fastrack/rhel/workstation/6/x86_64/optional/os',
      'content/fastrack/rhel/workstation/6/x86_64/optional/source/SRPMS',
      'content/fastrack/rhel/workstation/6/x86_64/os',
      'content/fastrack/rhel/workstation/6/x86_64/scalablefilesystem/debug',
      'content/fastrack/rhel/workstation/6/x86_64/scalablefilesystem/os',
      'content/fastrack/rhel/workstation/6/x86_64/scalablefilesystem/source/SRPMS',
      'content/fastrack/rhel/workstation/6/x86_64/source/SRPMS'
    ],
    'pkgs': [
      {'reference':'spice-server-0.12.4-16.el6_10.2', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'spice-server-devel-0.12.4-16.el6_10.2', 'cpu':'x86_64', 'release':'6', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

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, 'spice-server / spice-server-devel');
}