Ubuntu Update for intel-microcode USN-3531-2

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_ubuntu_USN_3531_2.nasl 14140 2019-03-13 12:26:09Z cfischer $
#
# Ubuntu Update for intel-microcode USN-3531-2
#
# Authors:
# System Generated Check
#
# Copyright:
# Copyright (C) 2018 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.843426");
  script_version("$Revision: 14140 $");
  script_tag(name:"last_modification", value:"$Date: 2019-03-13 13:26:09 +0100 (Wed, 13 Mar 2019) $");
  script_tag(name:"creation_date", value:"2018-01-23 07:38:15 +0100 (Tue, 23 Jan 2018)");
  script_cve_id("CVE-2017-5715");
  script_tag(name:"cvss_base", value:"4.7");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:C/I:N/A:N");
  script_tag(name:"qod_type", value:"package");
  script_name("Ubuntu Update for intel-microcode USN-3531-2");
  script_tag(name:"summary", value:"The remote host is missing an update for the 'intel-microcode'
  package(s) announced via the referenced advisory.");
  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
  script_tag(name:"insight", value:"USN-3531-1 updated Intel microcode to the
  20180108 release. Regressions were discovered in the microcode updates which
  could cause system instability on certain hardware platforms. At the request of
  Intel, we have reverted to the previous packaged microcode version, the 20170707
  release. Original advisory details: It was discovered that microprocessors
  utilizing speculative execution and branch prediction may allow unauthorized
  memory reads via sidechannel attacks. This flaw is known as Spectre. A local
  attacker could use this to expose sensitive information, including kernel
  memory. (CVE-2017-5715) This update provides the microcode updates required for
  the corresponding Linux kernel updates.");
  script_tag(name:"affected", value:"intel-microcode on Ubuntu 17.10,
  Ubuntu 16.04 LTS,
  Ubuntu 14.04 LTS");
  script_tag(name:"solution", value:"Please Install the Updated Packages.");

  script_xref(name:"USN", value:"3531-2");
  script_xref(name:"URL", value:"http://www.ubuntu.com/usn/usn-3531-2/");
  script_tag(name:"solution_type", value:"VendorFix");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2018 Greenbone Networks GmbH");
  script_family("Ubuntu Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU(14\.04 LTS|17\.10|16\.04 LTS)");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";

if(release == "UBUNTU14.04 LTS")
{

  if ((res = isdpkgvuln(pkg:"intel-microcode", ver:"3.20180108.0+really20170707ubuntu14.04.1", rls:"UBUNTU14.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}


if(release == "UBUNTU17.10")
{

  if ((res = isdpkgvuln(pkg:"intel-microcode", ver:"3.20180108.0+really20170707ubuntu17.10.1", rls:"UBUNTU17.10")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}


if(release == "UBUNTU16.04 LTS")
{

  if ((res = isdpkgvuln(pkg:"intel-microcode", ver:"3.20180108.0+really20170707ubuntu16.04.1", rls:"UBUNTU16.04 LTS")) != NULL)
  {
    security_message(data:res);
    exit(0);
  }

  if (__pkg_match) exit(99);
  exit(0);
}