Ubuntu 18.04 LTS : MariaDB vulnerability (USN-4250-2)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4250-2. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include('compat.inc');

if (description)
{
  script_id(133548);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/21");

  script_cve_id("CVE-2020-2574");
  script_xref(name:"USN", value:"4250-2");

  script_name(english:"Ubuntu 18.04 LTS : MariaDB vulnerability (USN-4250-2)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"It was discovered that an unspecified vulnerability existed in the C
API component of MariaDB. An attacker could use this to cause a denial
of service for MariaDB clients.

MariaDB has been updated to 10.3.22 in Ubuntu 19.10 and 10.1.44 in
Ubuntu 18.04 LTS.

In addition to security fixes, the updated packages contain bug fixes,
new features, and possibly incompatible changes.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://ubuntu.com/security/notices/USN-4250-2");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/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:H/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-2574");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/02/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/02/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmariadbclient-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmariadbclient-dev-compat");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmariadbclient18");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmariadbd-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libmariadbd18");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-client-10.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-client-core-10.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-plugin-connect");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-plugin-cracklib-password-check");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-plugin-gssapi-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-plugin-gssapi-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-plugin-mroonga");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-plugin-oqgraph");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-plugin-spider");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-plugin-tokudb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-server-10.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-server-core-10.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-test");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:mariadb-test-data");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Ubuntu Local Security Checks");

  script_copyright(english:"Ubuntu Security Notice (C) 2020-2023 Canonical, Inc. / NASL script (C) 2020-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('18.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 18.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);

var pkgs = [
    {'osver': '18.04', 'pkgname': 'libmariadbclient-dev', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'libmariadbclient-dev-compat', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'libmariadbclient18', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'libmariadbd-dev', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'libmariadbd18', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-client', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-client-10.1', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-client-core-10.1', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-common', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-plugin-connect', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-plugin-cracklib-password-check', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-plugin-gssapi-client', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-plugin-gssapi-server', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-plugin-mroonga', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-plugin-oqgraph', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-plugin-spider', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-plugin-tokudb', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-server', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-server-10.1', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-server-core-10.1', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-test', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'},
    {'osver': '18.04', 'pkgname': 'mariadb-test-data', 'pkgver': '1:10.1.44-0ubuntu0.18.04.1'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var osver = NULL;
  var pkgname = NULL;
  var pkgver = NULL;
  if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
  if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
  if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
  if (osver && pkgname && pkgver) {
    if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  var tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libmariadbclient-dev / libmariadbclient-dev-compat / etc');
}