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openvasCopyright (C) 2020 Greenbone Networks GmbHOPENVAS:1361412562310877968
HistoryJun 23, 2020 - 12:00 a.m.

Fedora: Security Advisory for microcode_ctl (FEDORA-2020-e8835a5f8e)

2020-06-2300:00:00
Copyright (C) 2020 Greenbone Networks GmbH
plugins.openvas.org
17

2.1 Low

CVSS2

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

19.6%

The remote host is missing an update for the

# Copyright (C) 2020 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# 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("1.3.6.1.4.1.25623.1.0.877968");
  script_version("2021-07-19T02:00:45+0000");
  script_cve_id("CVE-2020-0548", "CVE-2020-0549", "CVE-2020-0543");
  script_tag(name:"cvss_base", value:"2.1");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"last_modification", value:"2021-07-19 02:00:45 +0000 (Mon, 19 Jul 2021)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-06-26 03:15:00 +0000 (Fri, 26 Jun 2020)");
  script_tag(name:"creation_date", value:"2020-06-23 03:19:28 +0000 (Tue, 23 Jun 2020)");
  script_name("Fedora: Security Advisory for microcode_ctl (FEDORA-2020-e8835a5f8e)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("Fedora Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/fedora", "ssh/login/rpms", re:"ssh/login/release=FC32");

  script_xref(name:"FEDORA", value:"2020-e8835a5f8e");
  script_xref(name:"URL", value:"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T5OUM24ZC43G4IDT3JUCIHJTSDXJSK6Y");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'microcode_ctl'
  package(s) announced via the FEDORA-2020-e8835a5f8e advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"The microcode_ctl utility is a companion to the microcode driver written
by Tigran Aivazian <tigran(a)aivazian.fsnet.co.uk&gt, .

The microcode update is volatile and needs to be uploaded on each system
boot i.e. it doesn&#39, t reflash your cpu permanently, reboot and it reverts
back to the old microcode.");

  script_tag(name:"affected", value:"'microcode_ctl' package(s) on Fedora 32.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

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

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

res = "";
report = "";

if(release == "FC32") {

  if(!isnull(res = isrpmvuln(pkg:"microcode_ctl", rpm:"microcode_ctl~2.1~39.fc32", rls:"FC32"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);

2.1 Low

CVSS2

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

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

19.6%