Vulnerabilities > CVE-2018-10768 - NULL Pointer Dereference vulnerability in multiple products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2019-1217.
#

include("compat.inc");

if (description)
{
  script_id(125600);
  script_version("1.2");
  script_cvs_date("Date: 2019/06/04  9:45:00");

  script_cve_id("CVE-2017-18267", "CVE-2018-10768", "CVE-2018-13988");
  script_xref(name:"ALAS", value:"2019-1217");

  script_name(english:"Amazon Linux 2 : poppler (ALAS-2019-1217)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Amazon Linux 2 host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"There is a NULL pointer dereference in the AnnotPath::getCoordsLength
function in Annot.h. A crafted input will lead to a remote denial of
service attack. Poppler versions later than 0.41.0 are not
affected.(CVE-2018-10768)

The FoFiType1C::cvtGlyph function in fofi/FoFiType1C.cc in Poppler
allows remote attackers to cause a denial of service (infinite
recursion) via a crafted PDF file, as demonstrated by
pdftops.(CVE-2017-18267)

Poppler contains an out of bounds read vulnerability due to an
incorrect memory access that is not mapped in its memory space, as
demonstrated by pdfunite. This can result in memory corruption and
denial of service. This may be exploitable when a victim opens a
specially crafted PDF file.(CVE-2018-13988)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://alas.aws.amazon.com/AL2/ALAS-2019-1217.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Run 'yum update poppler' to update your system."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/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:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:poppler");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:poppler-cpp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:poppler-cpp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:poppler-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:poppler-demos");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:poppler-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:poppler-glib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:poppler-glib-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:poppler-qt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:poppler-qt-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:poppler-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/05/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/05/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/31");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Amazon Linux Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (rpm_check(release:"AL2", reference:"poppler-0.26.5-20.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"poppler-cpp-0.26.5-20.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"poppler-cpp-devel-0.26.5-20.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"poppler-debuginfo-0.26.5-20.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"poppler-demos-0.26.5-20.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"poppler-devel-0.26.5-20.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"poppler-glib-0.26.5-20.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"poppler-glib-devel-0.26.5-20.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"poppler-qt-0.26.5-20.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"poppler-qt-devel-0.26.5-20.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"poppler-utils-0.26.5-20.amzn2")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "poppler / poppler-cpp / poppler-cpp-devel / poppler-debuginfo / etc");
}

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(110883);
  script_version("1.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/04");

  script_cve_id(
    "CVE-2018-10768"
  );

  script_name(english:"EulerOS 2.0 SP2 : poppler (EulerOS-SA-2018-1219)");
  script_summary(english:"Checks the rpm output for the updated package.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the poppler packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerability :

  - There is a NULL pointer dereference in the
    AnnotPath::getCoordsLength function in Annot.h in an
    Ubuntu package for Poppler 0.24.5. A crafted input will
    lead to a remote denial of service attack. Later Ubuntu
    packages such as for Poppler 0.41.0 are not
    affected.(CVE-2018-10768)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2018-1219
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6b3713e7");
  script_set_attribute(attribute:"solution", value:
"Update the affected poppler package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/06/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/03");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:poppler");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:poppler-glib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:poppler-qt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:poppler-utils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(2)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["poppler-0.26.5-17.h11",
        "poppler-glib-0.26.5-17.h11",
        "poppler-qt-0.26.5-17.h11",
        "poppler-utils-0.26.5-17.h11"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"2", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "poppler");
}