Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : OpenJDK 8 vulnerabilities (USN-4453-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4453-1. 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(139373);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/21");

  script_cve_id(
    "CVE-2020-14556",
    "CVE-2020-14577",
    "CVE-2020-14578",
    "CVE-2020-14579",
    "CVE-2020-14581",
    "CVE-2020-14583",
    "CVE-2020-14593",
    "CVE-2020-14621"
  );
  script_xref(name:"USN", value:"4453-1");

  script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : OpenJDK 8 vulnerabilities (USN-4453-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"Johannes Kuhn discovered that OpenJDK 8 incorrectly handled access
control contexts. An attacker could possibly use this issue to execute
arbitrary code. (CVE-2020-14556) Philippe Arteau discovered that
OpenJDK 8 incorrectly verified names in TLS server's X.509
certificates. An attacker could possibly use this issue to obtain
sensitive information. (CVE-2020-14577) It was discovered that OpenJDK
8 incorrectly handled exceptions in DerInputStream class and in the
DerValue.equals() method. An attacker could possibly use this issue to
cause a denial of service. (CVE-2020-14578, CVE-2020-14579) It was
discovered that OpenJDK 8 incorrectly handled image files. An attacker
could possibly use this issue to obtain sensitive information.
(CVE-2020-14581) Markus Loewe discovered that OpenJDK 8 incorrectly
handled concurrent access in java.nio.Buffer class. An attacker could
use this issue to bypass sandbox restrictions. (CVE-2020-14583) It was
discovered that OpenJDK 8 incorrectly handled transformation of
images. An attacker could possibly use this issue to bypass sandbox
restrictions and insert, edit or obtain sensitive information.
(CVE-2020-14593) Roman Shemyakin discovered that OpenJDK 8 incorrectly
handled XML files. An attacker could possibly use this issue to
insert, edit or obtain sensitive information. (CVE-2020-14621).

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-4453-1");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N");
  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:R/S:C/C:H/I:H/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-2020-14556");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-14583");

  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:"2020/07/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/08/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/08/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jdk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jdk-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre-jamvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-jre-zero");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-source");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-8-demo");
  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 (! ('16.04' >< os_release || '18.04' >< os_release || '20.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04 / 20.04', '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': '16.04', 'pkgname': 'openjdk-8-demo', 'pkgver': '8u265-b01-0ubuntu2~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jdk', 'pkgver': '8u265-b01-0ubuntu2~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jdk-headless', 'pkgver': '8u265-b01-0ubuntu2~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jre', 'pkgver': '8u265-b01-0ubuntu2~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jre-headless', 'pkgver': '8u265-b01-0ubuntu2~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jre-jamvm', 'pkgver': '8u265-b01-0ubuntu2~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-jre-zero', 'pkgver': '8u265-b01-0ubuntu2~16.04'},
    {'osver': '16.04', 'pkgname': 'openjdk-8-source', 'pkgver': '8u265-b01-0ubuntu2~16.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-demo', 'pkgver': '8u265-b01-0ubuntu2~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-jdk', 'pkgver': '8u265-b01-0ubuntu2~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-jdk-headless', 'pkgver': '8u265-b01-0ubuntu2~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-jre', 'pkgver': '8u265-b01-0ubuntu2~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-jre-headless', 'pkgver': '8u265-b01-0ubuntu2~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-jre-zero', 'pkgver': '8u265-b01-0ubuntu2~18.04'},
    {'osver': '18.04', 'pkgname': 'openjdk-8-source', 'pkgver': '8u265-b01-0ubuntu2~18.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-8-demo', 'pkgver': '8u265-b01-0ubuntu2~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-8-jdk', 'pkgver': '8u265-b01-0ubuntu2~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-8-jdk-headless', 'pkgver': '8u265-b01-0ubuntu2~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-8-jre', 'pkgver': '8u265-b01-0ubuntu2~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-8-jre-headless', 'pkgver': '8u265-b01-0ubuntu2~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-8-jre-zero', 'pkgver': '8u265-b01-0ubuntu2~20.04'},
    {'osver': '20.04', 'pkgname': 'openjdk-8-source', 'pkgver': '8u265-b01-0ubuntu2~20.04'}
];

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, 'openjdk-8-demo / openjdk-8-jdk / openjdk-8-jdk-headless / etc');
}