Oracle Linux 7 : exiv2 (ELSA-2019-2101)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2019-2101.
##

include('compat.inc');

if (description)
{
  script_id(180755);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/07");

  script_cve_id(
    "CVE-2017-17724",
    "CVE-2018-8976",
    "CVE-2018-8977",
    "CVE-2018-9305",
    "CVE-2018-10772",
    "CVE-2018-10958",
    "CVE-2018-10998",
    "CVE-2018-11037",
    "CVE-2018-12264",
    "CVE-2018-12265",
    "CVE-2018-14046",
    "CVE-2018-17282",
    "CVE-2018-17581",
    "CVE-2018-18915",
    "CVE-2018-19107",
    "CVE-2018-19108",
    "CVE-2018-19535",
    "CVE-2018-19607",
    "CVE-2018-20096",
    "CVE-2018-20097",
    "CVE-2018-20098",
    "CVE-2018-20099"
  );

  script_name(english:"Oracle Linux 7 : exiv2 (ELSA-2019-2101)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the
ELSA-2019-2101 advisory.

  - In Exiv2 0.26, there is a heap-based buffer over-read in the Exiv2::IptcData::printStructure function in
    iptc.cpp, related to the != 0x1c case. Remote attackers can exploit this vulnerability to cause a denial
    of service via a crafted TIFF file. (CVE-2017-17724)

  - In Exiv2 0.26, jpgimage.cpp allows remote attackers to cause a denial of service (image.cpp
    Exiv2::Internal::stringFormat out-of-bounds read) via a crafted file. (CVE-2018-8976)

  - In Exiv2 0.26, the Exiv2::Internal::printCsLensFFFF function in canonmn_int.cpp allows remote attackers to
    cause a denial of service (invalid memory access) via a crafted file. (CVE-2018-8977)

  - In Exiv2 0.26, an out-of-bounds read in IptcData::printStructure in iptc.c could result in a crash or
    information leak, related to the == 0x1c case. (CVE-2018-9305)

  - The tEXtToDataBuf function in pngimage.cpp in Exiv2 through 0.26 allows remote attackers to cause a denial
    of service (application crash) or possibly have unspecified other impact via a crafted file.
    (CVE-2018-10772)

  - In types.cpp in Exiv2 0.26, a large size value may lead to a SIGABRT during an attempt at memory
    allocation for an Exiv2::Internal::PngChunk::zlibUncompress call. (CVE-2018-10958)

  - Exiv2 0.26 has an integer overflow in the LoaderExifJpeg class in preview.cpp, leading to an out-of-bounds
    read in Exiv2::MemIo::read in basicio.cpp. (CVE-2018-12265)

  - CiffDirectory::readDirectory() at crwimage_int.cpp in Exiv2 0.26 has excessive stack consumption due to a
    recursive function, leading to Denial of service. (CVE-2018-17581)

  - In Exiv2 0.26, Exiv2::IptcParser::decode in iptc.cpp (called from psdimage.cpp in the PSD image reader)
    may suffer from a denial of service (heap-based buffer over-read) caused by an integer overflow via a
    crafted PSD image file. (CVE-2018-19107)

  - There is an infinite loop in Exiv2::Jp2Image::encodeJp2Header of jp2image.cpp in Exiv2 0.27-RC3. A crafted
    input will lead to a remote denial of service attack. (CVE-2018-20099)

  - An issue was discovered in Exiv2 0.26. readMetadata in jp2image.cpp allows remote attackers to cause a
    denial of service (SIGABRT) by triggering an incorrect Safe::add call. (CVE-2018-10998)

  - In Exiv2 0.26, the Exiv2::PngImage::printStructure function in pngimage.cpp allows remote attackers to
    cause an information leak via a crafted file. (CVE-2018-11037)

  - Exiv2 0.26 has integer overflows in LoaderTiff::getData() in preview.cpp, leading to an out-of-bounds read
    in Exiv2::ValueType::setDataArea in value.hpp. (CVE-2018-12264)

  - Exiv2 0.26 has a heap-based buffer over-read in WebPImage::decodeChunks in webpimage.cpp. (CVE-2018-14046)

  - An issue was discovered in Exiv2 v0.26. The function Exiv2::DataValue::copy in value.cpp has a NULL
    pointer dereference. (CVE-2018-17282)

  - There is an infinite loop in the Exiv2::Image::printIFDStructure function of image.cpp in Exiv2 0.27-RC1.
    A crafted input will lead to a remote denial of service attack. (CVE-2018-18915)

  - In Exiv2 0.26, Exiv2::PsdImage::readMetadata in psdimage.cpp in the PSD image reader may suffer from a
    denial of service (infinite loop) caused by an integer overflow via a crafted PSD image file.
    (CVE-2018-19108)

  - In Exiv2 0.26 and previous versions, PngChunk::readRawProfile in pngchunk_int.cpp may cause a denial of
    service (application crash due to a heap-based buffer over-read) via a crafted PNG file. (CVE-2018-19535)

  - Exiv2::isoSpeed in easyaccess.cpp in Exiv2 v0.27-RC2 allows remote attackers to cause a denial of service
    (NULL pointer dereference and application crash) via a crafted file. (CVE-2018-19607)

  - There is a heap-based buffer over-read in the Exiv2::tEXtToDataBuf function of pngimage.cpp in Exiv2
    0.27-RC3. A crafted input will lead to a remote denial of service attack. (CVE-2018-20096)

  - There is a SEGV in Exiv2::Internal::TiffParserWorker::findPrimaryGroups of tiffimage_int.cpp in Exiv2
    0.27-RC3. A crafted input will lead to a remote denial of service attack. (CVE-2018-20097)

  - There is a heap-based buffer over-read in Exiv2::Jp2Image::encodeJp2Header of jp2image.cpp in Exiv2
    0.27-RC3. A crafted input will lead to a remote denial of service attack. (CVE-2018-20098)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://linux.oracle.com/errata/ELSA-2019-2101.html");
  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: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-2018-14046");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/02/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/08/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:exiv2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:exiv2-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:exiv2-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:exiv2-libs");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Oracle Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


include('rpm.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item('Host/OracleLinux')) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_release = get_kb_item("Host/RedHat/release");
if (isnull(os_release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_release)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Oracle Linux 7', 'Oracle Linux ' + 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$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

var pkgs = [
    {'reference':'exiv2-doc-0.27.0-2.el7_6', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-0.27.0-2.el7_6', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-devel-0.27.0-2.el7_6', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-libs-0.27.0-2.el7_6', 'cpu':'aarch64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-devel-0.27.0-2.el7_6', 'cpu':'i686', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-libs-0.27.0-2.el7_6', 'cpu':'i686', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-0.27.0-2.el7_6', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-devel-0.27.0-2.el7_6', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'exiv2-libs-0.27.0-2.el7_6', 'cpu':'x86_64', 'release':'7', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 'EL' + package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference && _release) {
    if (exists_check) {
        if (rpm_exists(release:_release, rpm:exists_check) && rpm_check(release:_release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
    } else {
        if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
    }
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'exiv2 / exiv2-devel / exiv2-doc / etc');
}