Ubuntu 16.04 LTS / 18.04 LTS / 18.10 / 19.04 : OpenJDK vulnerabilities (USN-3975-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3975-1. 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(125028);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/09/17");

  script_cve_id("CVE-2019-2602", "CVE-2019-2684", "CVE-2019-2697", "CVE-2019-2698");
  script_xref(name:"USN", value:"3975-1");

  script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS / 18.10 / 19.04 : OpenJDK vulnerabilities (USN-3975-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description",
    value:
"It was discovered that the BigDecimal implementation in OpenJDK
performed excessive computation when given certain values. An attacker
could use this to cause a denial of service (excessive CPU usage).
(CVE-2019-2602)

Corwin de Boor and Robert Xiao discovered that the RMI registry
implementation in OpenJDK did not properly select the correct skeleton
class in some situations. An attacker could use this to possibly
escape Java sandbox restrictions. (CVE-2019-2684)

Mateusz Jurczyk discovered a vulnerability in the 2D component of
OpenJDK. An attacker could use this to possibly escape Java sandbox
restrictions. This issue only affected OpenJDK 8 in Ubuntu 16.04 LTS.
(CVE-2019-2697)

Mateusz Jurczyk discovered a vulnerability in the font layout engine
of OpenJDK's 2D component. An attacker could use this to possibly
escape Java sandbox restrictions. This issue only affected OpenJDK 8
in Ubuntu 16.04 LTS. (CVE-2019-2698).

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://usn.ubuntu.com/3975-1/"
  );
  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:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  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:canonical:ubuntu_linux:openjdk-11-jdk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jdk-headless");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jre");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:openjdk-11-jre-headless");
  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:"cpe:/o:canonical:ubuntu_linux:16.04");
  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:18.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:19.04");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/04/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/14");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2019-2020 Canonical, Inc. / NASL script (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(16\.04|18\.04|18\.10|19\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 16.04 / 18.04 / 18.10 / 19.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

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

flag = 0;

if (ubuntu_check(osver:"16.04", pkgname:"openjdk-8-jdk", pkgver:"8u212-b03-0ubuntu1.16.04.1")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"openjdk-8-jdk-headless", pkgver:"8u212-b03-0ubuntu1.16.04.1")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"openjdk-8-jre", pkgver:"8u212-b03-0ubuntu1.16.04.1")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"openjdk-8-jre-headless", pkgver:"8u212-b03-0ubuntu1.16.04.1")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"openjdk-8-jre-jamvm", pkgver:"8u212-b03-0ubuntu1.16.04.1")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"openjdk-11-jdk", pkgver:"11.0.3+7-1ubuntu2~18.04.1")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"openjdk-11-jdk-headless", pkgver:"11.0.3+7-1ubuntu2~18.04.1")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"openjdk-11-jre", pkgver:"11.0.3+7-1ubuntu2~18.04.1")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"openjdk-11-jre-headless", pkgver:"11.0.3+7-1ubuntu2~18.04.1")) flag++;
if (ubuntu_check(osver:"18.10", pkgname:"openjdk-11-jdk", pkgver:"11.0.3+7-1ubuntu2~18.10.1")) flag++;
if (ubuntu_check(osver:"18.10", pkgname:"openjdk-11-jdk-headless", pkgver:"11.0.3+7-1ubuntu2~18.10.1")) flag++;
if (ubuntu_check(osver:"18.10", pkgname:"openjdk-11-jre", pkgver:"11.0.3+7-1ubuntu2~18.10.1")) flag++;
if (ubuntu_check(osver:"18.10", pkgname:"openjdk-11-jre-headless", pkgver:"11.0.3+7-1ubuntu2~18.10.1")) flag++;
if (ubuntu_check(osver:"19.04", pkgname:"openjdk-11-jdk", pkgver:"11.0.3+7-1ubuntu2~19.04.1")) flag++;
if (ubuntu_check(osver:"19.04", pkgname:"openjdk-11-jdk-headless", pkgver:"11.0.3+7-1ubuntu2~19.04.1")) flag++;
if (ubuntu_check(osver:"19.04", pkgname:"openjdk-11-jre", pkgver:"11.0.3+7-1ubuntu2~19.04.1")) flag++;
if (ubuntu_check(osver:"19.04", pkgname:"openjdk-11-jre-headless", pkgver:"11.0.3+7-1ubuntu2~19.04.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "openjdk-11-jdk / openjdk-11-jdk-headless / openjdk-11-jre / etc");
}