Vulnerabilities > CVE-2018-16403 - Out-of-bounds Read vulnerability in Elfutils Project Elfutils 0.173

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

include("compat.inc");

if (description)
{
  script_id(134479);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/19");

  script_cve_id(
    "CVE-2018-16062",
    "CVE-2018-16402",
    "CVE-2018-16403",
    "CVE-2018-18521",
    "CVE-2019-7148",
    "CVE-2019-7149",
    "CVE-2019-7150",
    "CVE-2019-7665"
  );

  script_name(english:"EulerOS Virtualization for ARM 64 3.0.2.0 : elfutils (EulerOS-SA-2020-1190)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization for ARM 64 host is missing multiple security
updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the elfutils packages installed, the
EulerOS Virtualization for ARM 64 installation on the remote host is
affected by the following vulnerabilities :

  - In elfutils 0.175, a heap-based buffer over-read was
    discovered in the function elf32_xlatetom in
    elf32_xlatetom.c in libelf. A crafted ELF input can
    cause a segmentation fault leading to denial of service
    (program crash) because ebl_core_note does not reject
    malformed core file notes.(CVE-2019-7665)

  - An issue was discovered in elfutils 0.175. A
    segmentation fault can occur in the function
    elf64_xlatetom in libelf/elf32_xlatetom.c, due to
    dwfl_segment_report_module not checking whether the dyn
    data read from a core file is truncated. A crafted
    input can cause a program crash, leading to
    denial-of-service, as demonstrated by
    eu-stack.(CVE-2019-7150)

  - A heap-based buffer over-read was discovered in the
    function read_srclines in dwarf_getsrclines.c in libdw
    in elfutils 0.175. A crafted input can cause
    segmentation faults, leading to denial-of-service, as
    demonstrated by eu-nm.(CVE-2019-7149)

  - Divide-by-zero vulnerabilities in the function
    arlib_add_symbols() in arlib.c in elfutils 0.174 allow
    remote attackers to cause a denial of service
    (application crash) with a crafted ELF file, as
    demonstrated by eu-ranlib, because a zero sh_entsize is
    mishandled.(CVE-2018-18521)

  - libdw in elfutils 0.173 checks the end of the
    attributes list incorrectly in dwarf_getabbrev in
    dwarf_getabbrev.c and dwarf_hasattr in dwarf_hasattr.c,
    leading to a heap-based buffer over-read and an
    application crash.(CVE-2018-16403)

  - libelf/elf_end.c in elfutils 0.173 allows remote
    attackers to cause a denial of service (double free and
    application crash) or possibly have unspecified other
    impact because it tries to decompress
    twice.(CVE-2018-16402)

  - dwarf_getaranges in dwarf_getaranges.c in libdw in
    elfutils before 2018-08-18 allows remote attackers to
    cause a denial of service (heap-based buffer over-read)
    via a crafted file.(CVE-2018-16062)

  - **DISPUTED** An attempted excessive memory allocation
    was discovered in the function read_long_names in
    elf_begin.c in libelf in elfutils 0.174. Remote
    attackers could leverage this vulnerability to cause a
    denial-of-service via crafted elf input, which leads to
    an out-of-memory exception. NOTE: The maintainers
    believe this is not a real issue, but instead a
    'warning caused by ASAN because the allocation is big.
    By setting ASAN_OPTIONS=allocator_may_return_null=1 and
    running the reproducer, nothing
    happens.'(CVE-2019-7148)

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-2020-1190
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3fb7bb17");
  script_set_attribute(attribute:"solution", value:
"Update the affected elfutils packages.");
  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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"patch_publication_date", value:"2020/03/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:elfutils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:elfutils-default-yama-scope");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:elfutils-libelf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:elfutils-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.0");
  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) 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/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "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");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.2.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.2.0");
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 ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

flag = 0;

pkgs = ["elfutils-0.170-4.h5",
        "elfutils-default-yama-scope-0.170-4.h5",
        "elfutils-libelf-0.170-4.h5",
        "elfutils-libs-0.170-4.h5"];

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

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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, "elfutils");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2019:2197 and 
# CentOS Errata and Security Advisory 2019:2197 respectively.
#

include("compat.inc");

if (description)
{
  script_id(128375);
  script_version("1.3");
  script_cvs_date("Date: 2019/12/31");

  script_cve_id("CVE-2018-16062", "CVE-2018-16402", "CVE-2018-16403", "CVE-2018-18310", "CVE-2018-18520", "CVE-2018-18521", "CVE-2019-7149", "CVE-2019-7150", "CVE-2019-7664", "CVE-2019-7665");
  script_xref(name:"RHSA", value:"2019:2197");

  script_name(english:"CentOS 7 : elfutils (CESA-2019:2197)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for elfutils is now available for Red Hat Enterprise Linux
7.

Red Hat Product Security has rated this update as having a security
impact of Low. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link (s) in the References section.

The elfutils packages contain a number of utility programs and
libraries related to the creation and maintenance of executable code.

The following packages have been upgraded to a later upstream version:
elfutils (0.176). (BZ#1676504)

Security Fix(es) :

* elfutils: Heap-based buffer over-read in libdw/
dwarf_getaranges.c:dwarf_getaranges() via crafted file
(CVE-2018-16062)

* elfutils: Double-free due to double decompression of sections in
crafted ELF causes crash (CVE-2018-16402)

* elfutils: Heap-based buffer over-read in libdw/dwarf_getabbrev.c and
libwd/ dwarf_hasattr.c causes crash (CVE-2018-16403)

* elfutils: invalid memory address dereference was discovered in
dwfl_segment_report_module.c in libdwfl (CVE-2018-18310)

* elfutils: eu-size cannot handle recursive ar files (CVE-2018-18520)

* elfutils: Divide-by-zero in arlib_add_symbols function in arlib.c
(CVE-2018-18521)

* elfutils: heap-based buffer over-read in read_srclines in
dwarf_getsrclines.c in libdw (CVE-2019-7149)

* elfutils: segmentation fault in elf64_xlatetom in
libelf/elf32_xlatetom.c (CVE-2019-7150)

* elfutils: Out of bound write in elf_cvt_note in libelf/note_xlate.h
(CVE-2019-7664)

* elfutils: heap-based buffer over-read in function elf32_xlatetom in
elf32_xlatetom.c (CVE-2019-7665)

For more details about the security issue(s), including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.7 Release Notes linked from the References section."
  );
  # https://lists.centos.org/pipermail/centos-cr-announce/2019-August/005856.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?296c7414"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected elfutils packages."
  );
  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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-16402");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:elfutils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:elfutils-default-yama-scope");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:elfutils-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:elfutils-devel-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:elfutils-libelf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:elfutils-libelf-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:elfutils-libelf-devel-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:elfutils-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/08/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/30");
  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:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 7.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"elfutils-0.176-2.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"elfutils-default-yama-scope-0.176-2.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"elfutils-devel-0.176-2.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"elfutils-devel-static-0.176-2.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"elfutils-libelf-0.176-2.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"elfutils-libelf-devel-0.176-2.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"elfutils-libelf-devel-static-0.176-2.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"elfutils-libs-0.176-2.el7")) flag++;


if (flag)
{
  cr_plugin_caveat = '\n' +
    'NOTE: The security advisory associated with this vulnerability has a\n' +
    'fixed package version that may only be available in the continuous\n' +
    'release (CR) repository for CentOS, until it is present in the next\n' +
    'point release of CentOS.\n\n' +

    'If an equal or higher package level does not exist in the baseline\n' +
    'repository for your major version of CentOS, then updates from the CR\n' +
    'repository will need to be applied in order to address the\n' +
    'vulnerability.\n';
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get() + cr_plugin_caveat
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "elfutils / elfutils-default-yama-scope / elfutils-devel / etc");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2019:2197. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(127696);
  script_version("1.5");
  script_cvs_date("Date: 2020/01/06");

  script_cve_id("CVE-2018-16062", "CVE-2018-16402", "CVE-2018-16403", "CVE-2018-18310", "CVE-2018-18520", "CVE-2018-18521", "CVE-2019-7149", "CVE-2019-7150", "CVE-2019-7664", "CVE-2019-7665");
  script_xref(name:"RHSA", value:"2019:2197");

  script_name(english:"RHEL 7 : elfutils (RHSA-2019:2197)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An update for elfutils is now available for Red Hat Enterprise Linux
7.

Red Hat Product Security has rated this update as having a security
impact of Low. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link (s) in the References section.

The elfutils packages contain a number of utility programs and
libraries related to the creation and maintenance of executable code.

The following packages have been upgraded to a later upstream version:
elfutils (0.176). (BZ#1676504)

Security Fix(es) :

* elfutils: Heap-based buffer over-read in libdw/
dwarf_getaranges.c:dwarf_getaranges() via crafted file
(CVE-2018-16062)

* elfutils: Double-free due to double decompression of sections in
crafted ELF causes crash (CVE-2018-16402)

* elfutils: Heap-based buffer over-read in libdw/dwarf_getabbrev.c and
libwd/ dwarf_hasattr.c causes crash (CVE-2018-16403)

* elfutils: invalid memory address dereference was discovered in
dwfl_segment_report_module.c in libdwfl (CVE-2018-18310)

* elfutils: eu-size cannot handle recursive ar files (CVE-2018-18520)

* elfutils: Divide-by-zero in arlib_add_symbols function in arlib.c
(CVE-2018-18521)

* elfutils: heap-based buffer over-read in read_srclines in
dwarf_getsrclines.c in libdw (CVE-2019-7149)

* elfutils: segmentation fault in elf64_xlatetom in
libelf/elf32_xlatetom.c (CVE-2019-7150)

* elfutils: Out of bound write in elf_cvt_note in libelf/note_xlate.h
(CVE-2019-7664)

* elfutils: heap-based buffer over-read in function elf32_xlatetom in
elf32_xlatetom.c (CVE-2019-7665)

For more details about the security issue(s), including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.7 Release Notes linked from the References section."
  );
  # https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?3395ff0b"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2019:2197"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-16062"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-16402"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-16403"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-18310"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-18520"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2018-18521"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-7149"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-7150"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-7664"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-7665"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  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:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:elfutils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:elfutils-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:elfutils-default-yama-scope");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:elfutils-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:elfutils-devel-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:elfutils-libelf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:elfutils-libelf-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:elfutils-libelf-devel-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:elfutils-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/08/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/08/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Red Hat Local Security Checks");

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

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) 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);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2019:2197";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"elfutils-0.176-2.el7")) flag++;
  if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"elfutils-0.176-2.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"elfutils-debuginfo-0.176-2.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"elfutils-default-yama-scope-0.176-2.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"elfutils-devel-0.176-2.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"elfutils-devel-static-0.176-2.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"elfutils-libelf-0.176-2.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"elfutils-libelf-devel-0.176-2.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"elfutils-libelf-devel-static-0.176-2.el7")) flag++;
  if (rpm_check(release:"RHEL7", reference:"elfutils-libs-0.176-2.el7")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "elfutils / elfutils-debuginfo / elfutils-default-yama-scope / etc");
  }
}