RHEL 6 : libvpx (Unpatched Vulnerability)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory libvpx. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(196227);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/11");

  script_cve_id(
    "CVE-2017-0393",
    "CVE-2017-0641",
    "CVE-2017-13194",
    "CVE-2019-2126",
    "CVE-2019-9232",
    "CVE-2019-9325",
    "CVE-2019-9371",
    "CVE-2019-9433",
    "CVE-2020-0034",
    "CVE-2023-5217"
  );
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2023/10/23");

  script_name(english:"RHEL 6 : libvpx (Unpatched Vulnerability)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat 6 host is affected by multiple vulnerabilities that will not be patched.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by multiple
vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - libvpx: Double free in ParseContentEncodingEntry() in mkvparser.cc (CVE-2019-2126)

  - libvpx: Heap buffer overflow in vp8 encoding in libvpx (CVE-2023-5217)

  - A denial of service vulnerability in libvpx in Mediaserver could enable a remote attacker to use a
    specially crafted file to cause a device hang or reboot. This issue is rated as High due to the
    possibility of remote denial of service. Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0,
    7.1. Android ID: A-30436808. (CVE-2017-0393)

  - A remote denial of service vulnerability in libvpx in Mediaserver could enable an attacker to use a
    specially crafted file to cause a device hang or reboot. This issue is rated as High severity due to the
    possibility of remote denial of service. Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0,
    7.1.1, 7.1.2. Android ID: A-34360591. (CVE-2017-0641)

  - A vulnerability in the Android media framework (libvpx) related to odd frame width. Product: Android.
    Versions: 7.0, 7.1.1, 7.1.2, 8.0, 8.1. Android ID: A-64710201. (CVE-2017-13194)

  - In libvpx, there is a possible out of bounds read due to a missing bounds check. This could lead to remote
    information disclosure with no additional execution privileges needed. User interaction is not needed for
    exploitation. Product: AndroidVersions: Android-10Android ID: A-122675483 (CVE-2019-9232)

  - In libvpx, there is a possible out of bounds read due to a missing bounds check. This could lead to remote
    information disclosure with no additional execution privileges needed. User interaction is needed for
    exploitation. Product: AndroidVersions: Android-10Android ID: A-112001302 (CVE-2019-9325)

  - In libvpx, there is a possible resource exhaustion due to improper input validation. This could lead to
    remote denial of service with no additional execution privileges needed. User interaction is needed for
    exploitation. Product: AndroidVersions: Android-10Android ID: A-132783254 (CVE-2019-9371)

  - In libvpx, there is a possible information disclosure due to improper input validation. This could lead to
    remote information disclosure with no additional execution privileges needed. User interaction is needed
    for exploitation. Product: AndroidVersions: Android-10Android ID: A-80479354 (CVE-2019-9433)

  - In vp8_decode_frame of decodeframe.c, there is a possible out of bounds read due to improper input
    validation. This could lead to remote information disclosure if error correction were turned on, with no
    additional execution privileges needed. User interaction is not needed for exploitation.Product:
    AndroidVersions: Android-8.0 Android-8.1Android ID: A-62458770 (CVE-2020-0034)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package
is installed.");
  script_set_attribute(attribute:"solution", value:
"The vendor has acknowledged the vulnerabilities but no solution has been provided. Refer to the vendor for remediation
guidance.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-2126");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-5217");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"vendor_unpatched", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/01/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/05/11");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libvpx");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "redhat_repos.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm.inc');
include('rhel.inc');

if (!get_kb_item("global_settings/vendor_unpatched"))
exit(0, "Unpatched Vulnerabilities Detection not active.");

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RedHat/release');
if (isnull(os_release) || 'Red Hat' >!< os_release) audit(AUDIT_OS_NOT, 'Red Hat');
var os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Red Hat');
os_ver = os_ver[1];
if (!rhel_check_release(operator: 'ge', os_version: os_ver, rhel_version: '6')) audit(AUDIT_OS_NOT, 'Red Hat 6.x', 'Red Hat ' + os_ver);

if (!get_kb_item('Host/RedHat/rpm-list')) 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 && 'ppc' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);

var constraints = [
  {
    'pkgs': [
      {'reference':'libvpx', 'release':'6', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'libvpx'}
    ]
  }
];


var flag = 0;
foreach var constraint_array ( constraints ) {
  var repo_relative_urls = NULL;
  var enterprise_linux_flag = rhel_repo_urls_has_content_dist_rhel(repo_urls:repo_relative_urls);
  foreach var pkg ( constraint_array['pkgs'] ) {
    var unpatched_pkg = NULL;
    var _release = NULL;
    var sp = NULL;
    var el_string = NULL;
    var rpm_spec_vers_cmp = NULL;
    var exists_check = NULL;
    var cves = NULL;
    if (!empty_or_null(pkg['unpatched_pkg'])) unpatched_pkg = pkg['unpatched_pkg'];
    if (!empty_or_null(pkg['release'])) _release = 'RHEL' + pkg['release'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (unpatched_pkg &&
        _release &&
        (!exists_check || rpm_exists(release:_release, rpm:exists_check)) &&
        unpatched_package_exists(release:_release, package:unpatched_pkg, cves: cves)) flag++;
  }
}

if (flag)
{
  var extra = NULL;
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : unpatched_packages_report()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libvpx');
}