Vulnerabilities > CVE-2019-13615 - Out-of-bounds Read vulnerability in Videolan VLC Media Player

#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(136999);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2019-13615");
  script_bugtraq_id(109304);

  script_name(english:"VLC < 3.0.3 Heap Based Buffer Overflow Vulnerability");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host contains a media player that is affected by heap base buffer overflow vulnerability.");
  script_set_attribute(attribute:"description", value:
"TThe version of VLC media player installed on the remote host is prior to 3.0.3. It is, therefore, affected by a 
heap-based buffer overflow vulnerability in its 'EbmlElement::FindNextElement' component. An unauthenticated, 
local attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2019-13615).");
  script_set_attribute(attribute:"see_also", value:"https://trac.videolan.org/vlc/ticket/22474");
  script_set_attribute(attribute:"solution", value:
"Upgrade to VLC version 3.0.3 or later.");
  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:L/AC:L/PR:N/UI:R/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-2019-13615");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/06/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:videolan:vlc_media_player");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("vlc_installed.nasl");
  script_require_keys("SMB/VLC/Version", "installed_sw/VLC media player");

  exit(0);
}

include('vcf.inc');

app_info = vcf::get_app_info(app:'VLC media player', win_local:TRUE);

constraints = [{'fixed_version':'3.0.3'}];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4073-1. 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(127094);
  script_version("1.5");
  script_cvs_date("Date: 2020/01/06");

  script_cve_id("CVE-2019-13615");
  script_xref(name:"USN", value:"4073-1");

  script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS : libebml vulnerability (USN-4073-1)");
  script_summary(english:"Checks dpkg output for updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Ubuntu host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that libEBML incorrectly handled certain media
files. If a user were tricked into opening a specially crafted media
file, libEBML could possibly be made to crash, resulting in a denial
of service.

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/4073-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libebml4v5 package."
  );
  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:L/AC:L/PR:N/UI:R/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:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libebml4v5");
  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:"vuln_publication_date", value:"2019/07/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/26");
  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)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 16.04 / 18.04", "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:"libebml4v5", pkgver:"1.3.3-1ubuntu0.1")) flag++;
if (ubuntu_check(osver:"18.04", pkgname:"libebml4v5", pkgver:"1.3.5-2ubuntu0.1")) 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, "libebml4v5");
}