openSUSE Security Update : xen (openSUSE-2019-1419) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2019-1419.
#
# The text description of this plugin is (C) SUSE LLC.
#

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

if (description)
{
  script_id(125305);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2018-20815", "CVE-2019-11091");

  script_name(english:"openSUSE Security Update : xen (openSUSE-2019-1419) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)");
  script_summary(english:"Check for the openSUSE-2019-1419 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for xen fixes the following issues :

Four new speculative execution information leak issues have been
identified in Intel CPUs. (bsc#1111331)

  - CVE-2018-12126: Microarchitectural Store Buffer Data
    Sampling (MSBDS)

  - CVE-2018-12127: Microarchitectural Fill Buffer Data
    Sampling (MFBDS)

  - CVE-2018-12130: Microarchitectural Load Port Data
    Samling (MLPDS)

  - CVE-2019-11091: Microarchitectural Data Sampling
    Uncacheable Memory (MDSUM)

These updates contain the XEN Hypervisor adjustments, that additionaly
also use CPU Microcode updates.

The mitigation can be controlled via the 'mds' commandline option, see
the documentation.

For more information on this set of vulnerabilities, check out
https://www.suse.com/support/kb/doc/?id=7023736

Security issue fixed :

  - CVE-2018-20815: Fixed a heap buffer overflow while
    loading device tree blob (bsc#1130680)

Other fixes :

  - Added code to change LIBXL_HOTPLUG_TIMEOUT at runtime.

    The included README has details about the impact of this
    change (bsc#1120095)

This update was imported from the SUSE:SLE-12-SP3:Update update
project."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1027519"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1111331"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1120095"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1130680"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/support/kb/doc/?id=7023736"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected xen packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/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:N/AC:L/PR:N/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:"exploitability_ease", value:"No known exploits are available");

  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-debugsource");
  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-doc-html");
  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-libs-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:xen-libs-debuginfo-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-debuginfo");
  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-domU-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.3");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/21");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE42\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.3", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE42.3", reference:"xen-debugsource-4.9.4_04-40.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"xen-devel-4.9.4_04-40.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"xen-libs-4.9.4_04-40.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"xen-libs-debuginfo-4.9.4_04-40.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"xen-tools-domU-4.9.4_04-40.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", reference:"xen-tools-domU-debuginfo-4.9.4_04-40.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"xen-4.9.4_04-40.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"xen-doc-html-4.9.4_04-40.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"xen-libs-32bit-4.9.4_04-40.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.9.4_04-40.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"xen-tools-4.9.4_04-40.1") ) flag++;
if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"xen-tools-debuginfo-4.9.4_04-40.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen-debugsource / xen-devel / xen-libs-32bit / xen-libs / etc");
}