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

include('compat.inc');

if (description)
{
  script_id(196113);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/11");

  script_cve_id(
    "CVE-2017-9110",
    "CVE-2017-9111",
    "CVE-2017-9112",
    "CVE-2017-9113",
    "CVE-2017-9114",
    "CVE-2017-9115",
    "CVE-2017-9116",
    "CVE-2017-12596",
    "CVE-2017-14988",
    "CVE-2020-16587",
    "CVE-2020-16588",
    "CVE-2020-16589",
    "CVE-2021-3474",
    "CVE-2021-3475",
    "CVE-2021-3476",
    "CVE-2021-3477",
    "CVE-2021-3478",
    "CVE-2021-3479",
    "CVE-2021-3598",
    "CVE-2021-3605",
    "CVE-2021-3933",
    "CVE-2021-3941",
    "CVE-2021-20296",
    "CVE-2021-20298",
    "CVE-2021-20299",
    "CVE-2021-20300",
    "CVE-2021-20302",
    "CVE-2021-20303",
    "CVE-2021-20304"
  );

  script_name(english:"RHEL 7 : openexr (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.

  - OpenEXR: Out-of-bounds write in the = operator function (CVE-2017-9115)

  - In OpenEXR 2.2.0, a crafted image causes a heap-based buffer over-read in the hufDecode function in
    IlmImf/ImfHuf.cpp during exrmaketiled execution; it may result in denial of service or possibly
    unspecified other impact. (CVE-2017-12596)

  - Header::readfrom in IlmImf/ImfHeader.cpp in OpenEXR 2.2.0 allows remote attackers to cause a denial of
    service (excessive memory allocation) via a crafted file that is accessed with the ImfOpenInputFile
    function in IlmImf/ImfCRgbaFile.cpp. NOTE: The maintainer and multiple third parties believe that this
    vulnerability isn't valid (CVE-2017-14988)

  - In OpenEXR 2.2.0, an invalid read of size 2 in the hufDecode function in ImfHuf.cpp could cause the
    application to crash. (CVE-2017-9110)

  - In OpenEXR 2.2.0, an invalid write of size 8 in the storeSSE function in ImfOptimizedPixelReading.h could
    cause the application to crash or execute arbitrary code. (CVE-2017-9111)

  - In OpenEXR 2.2.0, an invalid read of size 1 in the getBits function in ImfHuf.cpp could cause the
    application to crash. (CVE-2017-9112)

  - In OpenEXR 2.2.0, an invalid write of size 1 in the bufferedReadPixels function in ImfInputFile.cpp could
    cause the application to crash or execute arbitrary code. (CVE-2017-9113)

  - In OpenEXR 2.2.0, an invalid read of size 1 in the refill function in ImfFastHuf.cpp could cause the
    application to crash. (CVE-2017-9114)

  - In OpenEXR 2.2.0, an invalid read of size 1 in the uncompress function in ImfZip.cpp could cause the
    application to crash. (CVE-2017-9116)

  - A heap-based buffer overflow vulnerability exists in Academy Software Foundation OpenEXR 2.3.0 in
    chunkOffsetReconstruction in ImfMultiPartInputFile.cpp that can cause a denial of service via a crafted
    EXR file. (CVE-2020-16587)

  - A Null Pointer Deference issue exists in Academy Software Foundation OpenEXR 2.3.0 in generatePreview in
    makePreview.cpp that can cause a denial of service via a crafted EXR file. (CVE-2020-16588)

  - A head-based buffer overflow exists in Academy Software Foundation OpenEXR 2.3.0 in writeTileData in
    ImfTiledOutputFile.cpp that can cause a denial of service via a crafted EXR file. (CVE-2020-16589)

  - A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker,
    that is processed by the Dwa decompression functionality of OpenEXR's IlmImf library, could cause a NULL
    pointer dereference. The highest threat from this vulnerability is to system availability.
    (CVE-2021-20296)

  - A flaw was found in OpenEXR's B44Compressor. This flaw allows an attacker who can submit a crafted file to
    be processed by OpenEXR, to exhaust all memory accessible to the application. The highest threat from this
    vulnerability is to system availability. (CVE-2021-20298)

  - A flaw was found in OpenEXR's Multipart input file functionality. A crafted multi-part input file with no
    actual parts can trigger a NULL pointer dereference. The highest threat from this vulnerability is to
    system availability. (CVE-2021-20299)

  - A flaw was found in OpenEXR's hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows
    an attacker who can submit a crafted file that is processed by OpenEXR, to trigger an integer overflow.
    The highest threat from this vulnerability is to system availability. (CVE-2021-20300)

  - A flaw was found in OpenEXR's TiledInputFile functionality. This flaw allows an attacker who can submit a
    crafted single-part non-image to be processed by OpenEXR, to trigger a floating-point exception error. The
    highest threat from this vulnerability is to system availability. (CVE-2021-20302)

  - A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit
    a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds
    write on the heap. The greatest impact of this flaw is to application availability, with some potential
    impact to data integrity as well. (CVE-2021-20303)

  - A flaw was found in OpenEXR's hufDecode functionality. This flaw allows an attacker who can pass a crafted
    file to be processed by OpenEXR, to trigger an undefined right shift error. The highest threat from this
    vulnerability is to system availability. (CVE-2021-20304)

  - There's a flaw in OpenEXR in versions before 3.0.0-beta. A crafted input file that is processed by OpenEXR
    could cause a shift overflow in the FastHufDecoder, potentially leading to problems with application
    availability. (CVE-2021-3474)

  - There is a flaw in OpenEXR in versions before 3.0.0-beta. An attacker who can submit a crafted file to be
    processed by OpenEXR could cause an integer overflow, potentially leading to problems with application
    availability. (CVE-2021-3475)

  - A flaw was found in OpenEXR's B44 uncompression functionality in versions before 3.0.0-beta. An attacker
    who is able to submit a crafted file to OpenEXR could trigger shift overflows, potentially affecting
    application availability. (CVE-2021-3476)

  - There's a flaw in OpenEXR's deep tile sample size calculations in versions before 3.0.0-beta. An attacker
    who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow,
    subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application
    availability. (CVE-2021-3477)

  - There's a flaw in OpenEXR's scanline input file functionality in versions before 3.0.0-beta. An attacker
    able to submit a crafted file to be processed by OpenEXR could consume excessive system memory. The
    greatest impact of this flaw is to system availability. (CVE-2021-3478)

  - There's a flaw in OpenEXR's Scanline API functionality in versions before 3.0.0-beta. An attacker who is
    able to submit a crafted file to be processed by OpenEXR could trigger excessive consumption of memory,
    resulting in an impact to system availability. (CVE-2021-3479)

  - There's a flaw in OpenEXR's ImfDeepScanLineInputFile functionality in versions prior to 3.0.5. An attacker
    who is able to submit a crafted file to an application linked with OpenEXR could cause an out-of-bounds
    read. The greatest risk from this flaw is to application availability. (CVE-2021-3598)

  - There's a flaw in OpenEXR's rleUncompress functionality in versions prior to 3.0.5. An attacker who is
    able to submit a crafted file to an application linked with OpenEXR could cause an out-of-bounds read. The
    greatest risk from this flaw is to application availability. (CVE-2021-3605)

  - An integer overflow could occur when OpenEXR processes a crafted file on systems where size_t < 64 bits.
    This could cause an invalid bytesPerLine and maxBytesPerLine value, which could lead to problems with
    application stability or lead to other attack paths. (CVE-2021-3933)

  - In ImfChromaticities.cpp routine RGBtoXYZ(), there are some division operations such as `float Z = (1 -
    chroma.white.x - chroma.white.y) * Y / chroma.white.y;` and `chroma.green.y * (X + Z))) / d;` but the
    divisor is not checked for a 0 value. A specially crafted file could trigger a divide-by-zero condition
    which could affect the availability of programs linked with OpenEXR. (CVE-2021-3941)

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: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:R/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-2017-9115");

  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:"2017/05/21");
  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:OpenEXR");
  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':'OpenEXR', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'OpenEXR'}
    ]
  }
];


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_WARNING,
      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, 'OpenEXR');
}