SUSE SLED15 / SLES15 Security Update : ucode-intel (SUSE-SU-2018:1926-1) (Spectre)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:1926-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(120040);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/04/16");

  script_cve_id("CVE-2018-3639", "CVE-2018-3640");

  script_name(english:"SUSE SLED15 / SLES15 Security Update : ucode-intel (SUSE-SU-2018:1926-1) (Spectre)");
  script_summary(english:"Checks rpm output for the updated package.");

  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 ucode-intel fixes the following issues: The microcode
bundles was updated to the 20180703 release For the listed CPU
chipsets this fixes CVE-2018-3640 (Spectre v3a) and helps mitigating
CVE-2018-3639 (Spectre v4) (bsc#1100147 bsc#1087082 bsc#1087083). More
information on:
https://downloadcenter.intel.com/download/27945/Linux-Processor-Microc
ode-D ata-File Following chipsets are fixed in this round: Model
Stepping F-MO-S/PI Old->New

---- updated platforms ------------------------------------ SNB-EP C1
6-2d-6/6d 0000061c->0000061d Xeon E5 SNB-EP C2 6-2d-7/6d
00000713->00000714 Xeon E5 IVT C0 6-3e-4/ed 0000042c->0000042d Xeon E5
v2; Core i7-4960X/4930K/4820K IVT D1 6-3e-7/ed 00000713->00000714 Xeon
E5 v2 HSX-E/EP/4S C0 6-3f-2/6f 0000003c->0000003d Xeon E5 v3 HSX-EX E0
6-3f-4/80 00000011->00000012 Xeon E7 v3 SKX-SP/D/W/X H0 6-55-4/b7
02000043->0200004d Xeon Bronze 31xx, Silver 41xx, Gold 51xx/61xx
Platinum 81xx, D/W-21xx; Core i9-7xxxX BDX-DE A1 6-56-5/10
0e000009->0e00000a Xeon D-15x3N BDX-ML B/M/R0 6-4f-1/ef
0b00002c->0b00002e Xeon E5/E7 v4; Core i7-69xx/68xx

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=1087082"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1087083"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1100147"
  );
  # https://downloadcenter.intel.com/download/27945/Linux-Processor-Microcode-D
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?97303a3b"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-3639/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-3640/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20181926-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?47743007"
  );
  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 Basesystem 15:zypper in -t patch
SUSE-SLE-Module-Basesystem-15-2018-1299=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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-3640");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ucode-intel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:15");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/05/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/07/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/02");
  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:"ucode-intel-20180703-3.3.1")) flag++;
if (rpm_check(release:"SLED15", sp:"0", cpu:"x86_64", reference:"ucode-intel-20180703-3.3.1")) 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, "ucode-intel");
}