Basic search

K
nessusThis script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.SUSE_SU-2019-1248-1.NASL
HistoryMay 15, 2019 - 12:00 a.m.

SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2019:1248-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)

2019-05-1500:00:00
This script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
15

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 additionally 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

Other fixes: Added code to change LIBXL_HOTPLUG_TIMEOUT at runtime.

The included README has details about the impact of this change (bsc#1120095) Fixes in Live migrating PV domUs

An earlier change broke live migration of PV domUs without a device model. The migration would stall for 10 seconds while the domU was paused, which caused network connections to drop. Fix this by tracking the need for a device model within libxl. (bsc#1079730, bsc#1098403, bsc#1111025) Libvirt segfault when crash triggered on top of HVM guest (bsc#1120067)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2019:1248-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(125133);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/13");

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

  script_name(english:"SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2019:1248-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote SUSE host is missing one or more security updates."
  );
  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
additionally 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

Other fixes: Added code to change LIBXL_HOTPLUG_TIMEOUT at runtime.

The included README has details about the impact of this change
(bsc#1120095) Fixes in Live migrating PV domUs

An earlier change broke live migration of PV domUs without a
device model. The migration would stall for 10 seconds while
the domU was paused, which caused network connections to
drop. Fix this by tracking the need for a device model
within libxl. (bsc#1079730, bsc#1098403, bsc#1111025)
Libvirt segfault when crash triggered on top of HVM guest
(bsc#1120067)

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1027519"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1079730"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1098403"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1111025"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1111331"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1120067"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1120095"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-12126/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-12127/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-12130/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-11091/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/support/kb/doc/?id=7023736"
  );
  # https://www.suse.com/support/update/announcement/2019/suse-su-20191248-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?646635ed"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Module for Server Applications 15:zypper in -t
patch SUSE-SLE-Module-Server-Applications-15-2019-1248=1

SUSE Linux Enterprise Module for Basesystem 15:zypper in -t patch
SUSE-SLE-Module-Basesystem-15-2019-1248=1"
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/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:H/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-2019-11091");
  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:suse_linux:xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/15");
  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/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  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, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED15|SLES15)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED15 / SLES15", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);
if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", cpu);


sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES15" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES15 SP0", os_ver + " SP" + sp);
if (os_ver == "SLED15" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLED15 SP0", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-debugsource-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-devel-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-libs-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-libs-debuginfo-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-tools-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-tools-debuginfo-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-tools-domU-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLES15", sp:"0", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"xen-debugsource-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"xen-libs-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"xen-libs-debuginfo-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"xen-tools-domU-4.10.3_04-3.19.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.10.3_04-3.19.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xen");
}
Related for SUSE_SU-2019-1248-1.NASL