RHEL 7 : libsndfile (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 libsndfile. The text
# itself is copyright (C) Red Hat, Inc.
##

include('compat.inc');

if (description)
{
  script_id(196344);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/11");

  script_cve_id(
    "CVE-2017-6892",
    "CVE-2017-7585",
    "CVE-2017-7586",
    "CVE-2017-7741",
    "CVE-2017-7742",
    "CVE-2017-8361",
    "CVE-2017-8362",
    "CVE-2017-8363",
    "CVE-2017-8365",
    "CVE-2017-12562",
    "CVE-2017-14245",
    "CVE-2017-14246",
    "CVE-2017-14634",
    "CVE-2017-16942",
    "CVE-2017-17456",
    "CVE-2017-17457",
    "CVE-2018-19432",
    "CVE-2018-19661",
    "CVE-2018-19758",
    "CVE-2019-3832",
    "CVE-2021-4156"
  );

  script_name(english:"RHEL 7 : libsndfile (Unpatched Vulnerability)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Red Hat 7 host is affected by multiple vulnerabilities that will not be patched.");
  script_set_attribute(attribute:"description", value:
"The remote Redhat Enterprise Linux 7 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.

  - libsndfile: Heap-based Buffer Overflow in psf_binheader_writef function in common.c (CVE-2017-12562)

  - An out of bounds read in the function d2alaw_array() in alaw.c of libsndfile 1.0.28 may lead to a remote
    DoS attack or information disclosure, related to mishandling of the NAN and INFINITY floating-point
    values. (CVE-2017-14245)

  - An out of bounds read in the function d2ulaw_array() in ulaw.c of libsndfile 1.0.28 may lead to a remote
    DoS attack or information disclosure, related to mishandling of the NAN and INFINITY floating-point
    values. (CVE-2017-14246)

  - In libsndfile 1.0.28, a divide-by-zero error exists in the function double64_init() in double64.c, which
    may lead to DoS when playing a crafted audio file. (CVE-2017-14634)

  - In libsndfile 1.0.25 (fixed in 1.0.26), a divide-by-zero error exists in the function
    wav_w64_read_fmt_chunk() in wav_w64.c, which may lead to DoS when playing a crafted audio file.
    (CVE-2017-16942)

  - Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2017-14245. Reason: This candidate is a
    duplicate of CVE-2017-14245. Notes: All CVE users should reference CVE-2017-14245 instead of this
    candidate. All references and descriptions in this candidate have been removed to prevent accidental usage
    (CVE-2017-17456)

  - Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2017-14246. Reason: This candidate is a
    duplicate of CVE-2017-14246. Notes: All CVE users should reference CVE-2017-14246 instead of this
    candidate. All references and descriptions in this candidate have been removed to prevent accidental usage
    (CVE-2017-17457)

  - In libsndfile version 1.0.28, an error in the aiff_read_chanmap() function (aiff.c) can be exploited to
    cause an out-of-bounds read memory access via a specially crafted AIFF file. (CVE-2017-6892)

  - In libsndfile before 1.0.28, an error in the flac_buffer_copy() function (flac.c) can be exploited to
    cause a stack-based buffer overflow via a specially crafted FLAC file. (CVE-2017-7585)

  - In libsndfile before 1.0.28, an error in the header_read() function (common.c) when handling ID3 tags
    can be exploited to cause a stack-based buffer overflow via a specially crafted FLAC file. (CVE-2017-7586)

  - In libsndfile before 1.0.28, an error in the flac_buffer_copy() function (flac.c) can be exploited to
    cause a segmentation violation (with write memory access) via a specially crafted FLAC file during a
    resample attempt, a similar issue to CVE-2017-7585. (CVE-2017-7741)

  - In libsndfile before 1.0.28, an error in the flac_buffer_copy() function (flac.c) can be exploited to
    cause a segmentation violation (with read memory access) via a specially crafted FLAC file during a
    resample attempt, a similar issue to CVE-2017-7585. (CVE-2017-7742)

  - The flac_buffer_copy function in flac.c in libsndfile 1.0.28 allows remote attackers to cause a denial of
    service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted
    audio file. (CVE-2017-8361)

  - The flac_buffer_copy function in flac.c in libsndfile 1.0.28 allows remote attackers to cause a denial of
    service (invalid read and application crash) via a crafted audio file. (CVE-2017-8362)

  - The flac_buffer_copy function in flac.c in libsndfile 1.0.28 allows remote attackers to cause a denial of
    service (heap-based buffer over-read and application crash) via a crafted audio file. (CVE-2017-8363)

  - The i2les_array function in pcm.c in libsndfile 1.0.28 allows remote attackers to cause a denial of
    service (buffer over-read and application crash) via a crafted audio file. (CVE-2017-8365)

  - An issue was discovered in libsndfile 1.0.28. There is a NULL pointer dereference in the function
    sf_write_int in sndfile.c, which will lead to a denial of service. (CVE-2018-19432)

  - An issue was discovered in libsndfile 1.0.28. There is a buffer over-read in the function i2ulaw_array in
    ulaw.c that will lead to a denial of service. (CVE-2018-19661)

  - There is a heap-based buffer over-read at wav.c in wav_write_header in libsndfile 1.0.28 that will cause a
    denial of service. (CVE-2018-19758)

  - It was discovered the fix for CVE-2018-19758 (libsndfile) was not complete and still allows a read beyond
    the limits of a buffer in wav_write_header() function in wav.c. A local attacker may use this flaw to make
    the application crash. (CVE-2019-3832)

  - An out-of-bounds read flaw was found in libsndfile's FLAC codec functionality. An attacker who is able to
    submit a specially crafted file (via tricking a user to open or otherwise) to an application linked with
    libsndfile and using the FLAC codec, could trigger an out-of-bounds read that would most likely cause a
    crash but could potentially leak memory information that could be used in further exploitation of other
    flaws. (CVE-2021-4156)

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:L/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:L/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:"cvss_score_source", value:"CVE-2017-12562");

  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:"2017/04/07");
  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:"cpe:/o:redhat:enterprise_linux:8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:libsndfile");
  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: '7')) audit(AUDIT_OS_NOT, 'Red Hat 7.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':'libsndfile', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'libsndfile'}
    ]
  }
];


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, 'libsndfile');
}