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nessusThis script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.OPENSUSE-2022-0940-1.NASL
HistoryMar 24, 2022 - 12:00 a.m.

openSUSE 15 Security Update : xen (openSUSE-SU-2022:0940-1)

2022-03-2400:00:00
This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
32

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

EPSS

0.975

Percentile

100.0%

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2022:0940-1 advisory.

  • LFENCE/JMP (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD CPUs.
    (CVE-2021-26401)

  • Non-transparent sharing of branch predictor selectors between contexts in some Intel® Processors may allow an authorized user to potentially enable information disclosure via local access. (CVE-2022-0001)

  • Non-transparent sharing of branch predictor within a context in some Intel® Processors may allow an authorized user to potentially enable information disclosure via local access. (CVE-2022-0002)

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# openSUSE Security Update openSUSE-SU-2022:0940-1. The text itself
# is copyright (C) SUSE.
##

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

if (description)
{
  script_id(159211);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/03/24");

  script_cve_id("CVE-2021-26401", "CVE-2022-0001", "CVE-2022-0002");

  script_name(english:"openSUSE 15 Security Update : xen (openSUSE-SU-2022:0940-1)");

  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-2022:0940-1 advisory.

  - LFENCE/JMP (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD CPUs.
    (CVE-2021-26401)

  - Non-transparent sharing of branch predictor selectors between contexts in some Intel(R) Processors may
    allow an authorized user to potentially enable information disclosure via local access. (CVE-2022-0001)

  - Non-transparent sharing of branch predictor within a context in some Intel(R) Processors may allow an
    authorized user to potentially enable information disclosure via local access. (CVE-2022-0002)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1027519");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1191668");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1194267");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1196915");
  # https://lists.opensuse.org/archives/list/[email protected]/thread/NXODJTCX5G5LLTBOEFVBOCIWYKEGYAMP/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cd78ea4b");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-26401");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-0001");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-0002");
  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:N/A:N");
  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:L/UI:N/S:C/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-0002");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2022/03/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/03/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/03/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-domU");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-tools-xendomains-wait-disk");
  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) 2022 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':'xen-4.14.4_02-150300.3.21.1', 'cpu':'aarch64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'xen-4.14.4_02-150300.3.21.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'xen-devel-4.14.4_02-150300.3.21.1', 'cpu':'aarch64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'xen-devel-4.14.4_02-150300.3.21.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'xen-libs-32bit-4.14.4_02-150300.3.21.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'xen-libs-4.14.4_02-150300.3.21.1', 'cpu':'aarch64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'xen-libs-4.14.4_02-150300.3.21.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'xen-tools-4.14.4_02-150300.3.21.1', 'cpu':'aarch64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'xen-tools-4.14.4_02-150300.3.21.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'xen-tools-domU-4.14.4_02-150300.3.21.1', 'cpu':'aarch64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'xen-tools-domU-4.14.4_02-150300.3.21.1', 'cpu':'x86_64', 'release':'SUSE15.3', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'xen-tools-xendomains-wait-disk-4.14.4_02-150300.3.21.1', '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, 'xen / xen-devel / xen-libs / xen-libs-32bit / xen-tools / etc');
}
VendorProductVersionCPE
novellopensusexenp-cpe:/a:novell:opensuse:xen
novellopensusexen-develp-cpe:/a:novell:opensuse:xen-devel
novellopensusexen-libsp-cpe:/a:novell:opensuse:xen-libs
novellopensusexen-libs-32bitp-cpe:/a:novell:opensuse:xen-libs-32bit
novellopensusexen-toolsp-cpe:/a:novell:opensuse:xen-tools
novellopensusexen-tools-domup-cpe:/a:novell:opensuse:xen-tools-domu
novellopensusexen-tools-xendomains-wait-diskp-cpe:/a:novell:opensuse:xen-tools-xendomains-wait-disk
novellopensuse15.3cpe:/o:novell:opensuse:15.3

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

CVSS3

6.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

EPSS

0.975

Percentile

100.0%