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

include('compat.inc');

if (description)
{
  script_id(196766);
  script_version("1.0");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/11");

  script_cve_id(
    "CVE-2017-7511",
    "CVE-2017-7515",
    "CVE-2017-9083",
    "CVE-2017-9406",
    "CVE-2017-9408",
    "CVE-2017-9865",
    "CVE-2017-14517",
    "CVE-2017-14518",
    "CVE-2017-14519",
    "CVE-2017-14520",
    "CVE-2017-14617",
    "CVE-2017-14926",
    "CVE-2017-14927",
    "CVE-2017-14928",
    "CVE-2017-14929",
    "CVE-2017-14975",
    "CVE-2017-14976",
    "CVE-2017-14977",
    "CVE-2017-15565",
    "CVE-2017-1000456",
    "CVE-2019-9543",
    "CVE-2019-11026",
    "CVE-2020-27778",
    "CVE-2020-36023",
    "CVE-2020-36024",
    "CVE-2022-27337",
    "CVE-2022-37050",
    "CVE-2022-37051",
    "CVE-2022-37052",
    "CVE-2022-38349",
    "CVE-2022-38784"
  );

  script_name(english:"RHEL 7 : poppler (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.

  - poppler: recursive function call in JBIG2Stream::readGenericBitmap() in JBIG2Stream.cc causing denial of
    service (CVE-2019-9543)

  - freedesktop.org libpoppler 0.60.1 fails to validate boundaries in TextPool::addWord, leading to overflow
    in subsequent calculations. (CVE-2017-1000456)

  - In Poppler 0.59.0, a NULL Pointer Dereference exists in the XRef::parseEntry() function in XRef.cc via a
    crafted PDF document. (CVE-2017-14517)

  - In Poppler 0.59.0, a floating point exception exists in the isImageInterpolationRequired() function in
    Splash.cc via a crafted PDF document. (CVE-2017-14518)

  - In Poppler 0.59.0, memory corruption occurs in a call to Object::streamGetChar in Object.h after a
    repeating series of Gfx::display, Gfx::go, Gfx::execOp, Gfx::opShowText, and Gfx::doShowText calls (aka a
    Gfx.cc infinite loop). (CVE-2017-14519)

  - In Poppler 0.59.0, a floating point exception occurs in Splash::scaleImageYuXd() in Splash.cc, which may
    lead to a potential attack when handling malicious PDF files. (CVE-2017-14520)

  - In Poppler 0.59.0, a floating point exception occurs in the ImageStream class in Stream.cc, which may lead
    to a potential attack when handling malicious PDF files. (CVE-2017-14617)

  - In Poppler 0.59.0, a NULL Pointer Dereference exists in AnnotRichMedia::Content::Content in Annot.cc via a
    crafted PDF document. (CVE-2017-14926)

  - In Poppler 0.59.0, a NULL Pointer Dereference exists in the SplashOutputDev::type3D0() function in
    SplashOutputDev.cc via a crafted PDF document. (CVE-2017-14927)

  - In Poppler 0.59.0, a NULL Pointer Dereference exists in AnnotRichMedia::Configuration::Configuration in
    Annot.cc via a crafted PDF document. (CVE-2017-14928)

  - In Poppler 0.59.0, memory corruption occurs in a call to Object::dictLookup() in Object.h after a
    repeating series of Gfx::display, Gfx::go, Gfx::execOp, Gfx::opFill, Gfx::doPatternFill,
    Gfx::doTilingPatternFill and Gfx::drawForm calls (aka a Gfx.cc infinite loop), a different vulnerability
    than CVE-2017-14519. (CVE-2017-14929)

  - The FoFiType1C::convertToType0 function in FoFiType1C.cc in Poppler 0.59.0 has a NULL pointer dereference
    vulnerability because a data structure is not initialized, which allows an attacker to launch a denial of
    service attack. (CVE-2017-14975)

  - The FoFiType1C::convertToType0 function in FoFiType1C.cc in Poppler 0.59.0 has a heap-based buffer over-
    read vulnerability if an out-of-bounds font dictionary index is encountered, which allows an attacker to
    launch a denial of service attack. (CVE-2017-14976)

  - The FoFiTrueType::getCFFBlock function in FoFiTrueType.cc in Poppler 0.59.0 has a NULL pointer dereference
    vulnerability due to lack of validation of a table pointer, which allows an attacker to launch a denial of
    service attack. (CVE-2017-14977)

  - In Poppler 0.59.0, a NULL Pointer Dereference exists in the GfxImageColorMap::getGrayLine() function in
    GfxState.cc via a crafted PDF document. (CVE-2017-15565)

  - poppler since version 0.17.3 has been vulnerable to NULL pointer dereference in pdfunite triggered by
    specially crafted documents. (CVE-2017-7511)

  - poppler through version 0.55.0 is vulnerable to an uncontrolled recursion in pdfunite resulting into
    potential denial-of-service. (CVE-2017-7515)

  - poppler 0.54.0, as used in Evince and other products, has a NULL pointer dereference in the
    JPXStream::readUByte function in JPXStream.cc. For example, the perf_test utility will crash (segmentation
    fault) when parsing an invalid PDF file. (CVE-2017-9083)

  - In Poppler 0.54.0, a memory leak vulnerability was found in the function gmalloc in gmem.cc, which allows
    attackers to cause a denial of service via a crafted file. (CVE-2017-9406)

  - In Poppler 0.54.0, a memory leak vulnerability was found in the function Object::initArray in Object.cc,
    which allows attackers to cause a denial of service via a crafted file. (CVE-2017-9408)

  - The function GfxImageColorMap::getGray in GfxState.cc in Poppler 0.54.0 allows remote attackers to cause a
    denial of service (stack-based buffer over-read and application crash) via a crafted PDF document, related
    to missing color-map validation in ImageOutputDev.cc. (CVE-2017-9865)

  - FontInfoScanner::scanFonts in FontInfo.cc in Poppler 0.75.0 has infinite recursion, leading to a call to
    the error function in Error.cc. (CVE-2019-11026)

  - A flaw was found in Poppler in the way certain PDF files were converted into HTML. A remote attacker could
    exploit this flaw by providing a malicious PDF file that, when processed by the 'pdftohtml' program, would
    crash the application causing a denial of service. (CVE-2020-27778)

  - An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers to cause a denial
    of service (DoS) via crafted .pdf file to FoFiType1C::cvtGlyph function. (CVE-2020-36023)

  - An issue was discovered in freedesktop poppler version 20.12.1, allows remote attackers to cause a denial
    of service (DoS) via crafted .pdf file to FoFiType1C::convertToType1 function. (CVE-2020-36024)

  - A logic error in the Hints::Hints function of Poppler v22.03.0 allows attackers to cause a Denial of
    Service (DoS) via a crafted PDF file. (CVE-2022-27337)

  - In Poppler 22.07.0, PDFDoc::savePageAs in PDFDoc.c callows attackers to cause a denial-of-service
    (application crashes with SIGABRT) by crafting a PDF file in which the xref data structure is mishandled
    in getCatalog processing. Note that this vulnerability is caused by the incomplete patch of
    CVE-2018-20662. (CVE-2022-37050)

  - An issue was discovered in Poppler 22.07.0. There is a reachable abort which leads to denial of service
    because the main function in pdfunite.cc lacks a stream check before saving an embedded file.
    (CVE-2022-37051)

  - A reachable Object::getString assertion in Poppler 22.07.0 allows attackers to cause a denial of service
    due to a failure in markObject. (CVE-2022-37052)

  - An issue was discovered in Poppler 22.08.0. There is a reachable assertion in Object.h, will lead to
    denial of service because PDFDoc::replacePageDict in PDFDoc.cc lacks a stream check before saving an
    embedded file. (CVE-2022-38349)

  - Poppler prior to and including 22.08.0 contains an integer overflow in the JBIG2 decoder
    (JBIG2Stream::readTextRegionSeg() in JBIGStream.cc). Processing a specially crafted PDF file or JBIG2
    image could lead to a crash or the execution of arbitrary code. This is similar to the vulnerability
    described by CVE-2022-38171 in Xpdf. (CVE-2022-38784)

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-2019-9543");

  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:"2017/05/19");
  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:5");
  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:compat-poppler022");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:evince");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:poppler");
  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':'compat-poppler022', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'compat-poppler022', 'cves':['CVE-2017-9083', 'CVE-2022-37050', 'CVE-2022-37051', 'CVE-2022-37052', 'CVE-2022-38349', 'CVE-2022-38784']},
      {'reference':'evince', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'evince', 'cves':['CVE-2017-9083']},
      {'reference':'poppler', 'release':'7', 'rpm_spec_vers_cmp':TRUE, 'unpatched_pkg':'poppler'}
    ]
  }
];


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, 'compat-poppler022 / evince / poppler');
}