Vulnerabilities > CVE-2019-7146 - Out-of-bounds Read vulnerability in Elfutils Project Elfutils 0.175

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

# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2019-0209. The text
# itself is copyright (C) ZTE, Inc.

include("compat.inc");

if (description)
{
  script_id(129896);
  script_version("1.2");
  script_cvs_date("Date: 2019/10/17 14:31:05");

  script_cve_id(
    "CVE-2018-16062",
    "CVE-2018-16402",
    "CVE-2018-16403",
    "CVE-2018-18310",
    "CVE-2018-18520",
    "CVE-2018-18521",
    "CVE-2019-7146",
    "CVE-2019-7148",
    "CVE-2019-7149",
    "CVE-2019-7150",
    "CVE-2019-7664",
    "CVE-2019-7665"
  );

  script_name(english:"NewStart CGSL CORE 5.04 / MAIN 5.04 : elfutils Multiple Vulnerabilities (NS-SA-2019-0209)");

  script_set_attribute(attribute:"synopsis", value:
"The remote machine is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has elfutils packages installed that are affected
by multiple vulnerabilities:

  - 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)

  - 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)

  - 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)

  - 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)

  - 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)

  - An Invalid Memory Address Dereference exists in the
    function elf_end in libelf in elfutils through v0.174.
    Although eu-size is intended to support ar files inside
    ar files, handle_ar in size.c closes the outer ar file
    before handling all inner entries. The vulnerability
    allows attackers to cause a denial of service
    (application crash) with a crafted ELF file.
    (CVE-2018-18520)

  - 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)

  - An invalid memory address dereference was discovered in
    dwfl_segment_report_module.c in libdwfl in elfutils
    through v0.174. The vulnerability allows attackers to
    cause a denial of service (application crash) with a
    crafted ELF file, as demonstrated by consider_notes.
    (CVE-2018-18310)

  - 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)

  - In elfutils 0.175, a negative-sized memcpy is attempted
    in elf_cvt_note in libelf/note_xlate.h because of an
    incorrect overflow check. Crafted elf input causes a
    segmentation fault, leading to denial of service
    (program crash). (CVE-2019-7664)

  - In elfutils 0.175, there is a buffer over-read in the
    ebl_object_note function in eblobjnote.c in libebl.
    Remote attackers could leverage this vulnerability to
    cause a denial-of-service via a crafted elf file, as
    demonstrated by eu-readelf. (CVE-2019-7146)

  - **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 Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/notice/NS-SA-2019-0209");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL elfutils packages. Note that updated packages may not be available yet. Please contact ZTE
for more information.");
  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:"vuln_publication_date", value:"2018/08/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  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/ZTE-CGSL/release");
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, "NewStart Carrier Grade Server Linux");

if (release !~ "CGSL CORE 5.04" &&
    release !~ "CGSL MAIN 5.04")
  audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.04 / NewStart CGSL MAIN 5.04');

if (!get_kb_item("Host/ZTE-CGSL/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, "NewStart Carrier Grade Server Linux", cpu);

flag = 0;

pkgs = {
  "CGSL CORE 5.04": [
    "elfutils-0.176-2.el7.cgslv5.0.1.g732c7dd.lite",
    "elfutils-debuginfo-0.176-2.el7.cgslv5.0.1.g732c7dd.lite",
    "elfutils-default-yama-scope-0.176-2.el7.cgslv5.0.1.g732c7dd.lite",
    "elfutils-devel-0.176-2.el7.cgslv5.0.1.g732c7dd.lite",
    "elfutils-devel-static-0.176-2.el7.cgslv5.0.1.g732c7dd.lite",
    "elfutils-libelf-0.176-2.el7.cgslv5.0.1.g732c7dd.lite",
    "elfutils-libelf-devel-0.176-2.el7.cgslv5.0.1.g732c7dd.lite",
    "elfutils-libelf-devel-static-0.176-2.el7.cgslv5.0.1.g732c7dd.lite",
    "elfutils-libelf-lang-0.176-2.el7.cgslv5.0.1.g732c7dd.lite",
    "elfutils-libs-0.176-2.el7.cgslv5.0.1.g732c7dd.lite"
  ],
  "CGSL MAIN 5.04": [
    "elfutils-0.176-2.el7.cgslv5",
    "elfutils-debuginfo-0.176-2.el7.cgslv5",
    "elfutils-default-yama-scope-0.176-2.el7.cgslv5",
    "elfutils-devel-0.176-2.el7.cgslv5",
    "elfutils-devel-static-0.176-2.el7.cgslv5",
    "elfutils-libelf-0.176-2.el7.cgslv5",
    "elfutils-libelf-devel-0.176-2.el7.cgslv5",
    "elfutils-libelf-devel-static-0.176-2.el7.cgslv5",
    "elfutils-libs-0.176-2.el7.cgslv5"
  ]
};
pkg_list = pkgs[release];

foreach (pkg in pkg_list)
  if (rpm_check(release:"ZTE " + release, 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 ZTE advisory NS-SA-2019-0258. The text
# itself is copyright (C) ZTE, Inc.

include('compat.inc');

if (description)
{
  script_id(132468);
  script_version("1.2");
  script_cvs_date("Date: 2020/01/02");

  script_cve_id(
    "CVE-2018-16062",
    "CVE-2018-16402",
    "CVE-2018-16403",
    "CVE-2018-18310",
    "CVE-2018-18520",
    "CVE-2018-18521",
    "CVE-2019-7146",
    "CVE-2019-7148",
    "CVE-2019-7149",
    "CVE-2019-7150",
    "CVE-2019-7664",
    "CVE-2019-7665"
  );
  script_bugtraq_id(
    107134,
    108523,
    108806,
    108862
  );

  script_name(english:"NewStart CGSL CORE 5.05 / MAIN 5.05 : elfutils Multiple Vulnerabilities (NS-SA-2019-0258)");

  script_set_attribute(attribute:"synopsis", value:
"The remote machine is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has elfutils packages installed that are affected
by multiple vulnerabilities:

  - 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)

  - 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)

  - 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)

  - 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)

  - 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)

  - An Invalid Memory Address Dereference exists in the
    function elf_end in libelf in elfutils through v0.174.
    Although eu-size is intended to support ar files inside
    ar files, handle_ar in size.c closes the outer ar file
    before handling all inner entries. The vulnerability
    allows attackers to cause a denial of service
    (application crash) with a crafted ELF file.
    (CVE-2018-18520)

  - 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)

  - An invalid memory address dereference was discovered in
    dwfl_segment_report_module.c in libdwfl in elfutils
    through v0.174. The vulnerability allows attackers to
    cause a denial of service (application crash) with a
    crafted ELF file, as demonstrated by consider_notes.
    (CVE-2018-18310)

  - 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)

  - In elfutils 0.175, a negative-sized memcpy is attempted
    in elf_cvt_note in libelf/note_xlate.h because of an
    incorrect overflow check. Crafted elf input causes a
    segmentation fault, leading to denial of service
    (program crash). (CVE-2019-7664)

  - In elfutils 0.175, there is a buffer over-read in the
    ebl_object_note function in eblobjnote.c in libebl.
    Remote attackers could leverage this vulnerability to
    cause a denial-of-service via a crafted elf file, as
    demonstrated by eu-readelf. (CVE-2019-7146)

  - **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 Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/notice/NS-SA-2019-0258");
  script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL elfutils packages. Note that updated packages may not be available yet. Please contact ZTE
for more information.");
  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:"vuln_publication_date", value:"2018/08/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/12/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/31");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  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/ZTE-CGSL/release");
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, "NewStart Carrier Grade Server Linux");

if (release !~ "CGSL CORE 5.05" &&
    release !~ "CGSL MAIN 5.05")
  audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.05 / NewStart CGSL MAIN 5.05');

if (!get_kb_item("Host/ZTE-CGSL/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, "NewStart Carrier Grade Server Linux", cpu);

flag = 0;

pkgs = {
  "CGSL CORE 5.05": [
    "elfutils-0.176-2.el7.cgslv5_5.0.1.gf2430b1.lite",
    "elfutils-debuginfo-0.176-2.el7.cgslv5_5.0.1.gf2430b1.lite",
    "elfutils-default-yama-scope-0.176-2.el7.cgslv5_5.0.1.gf2430b1.lite",
    "elfutils-devel-0.176-2.el7.cgslv5_5.0.1.gf2430b1.lite",
    "elfutils-devel-static-0.176-2.el7.cgslv5_5.0.1.gf2430b1.lite",
    "elfutils-libelf-0.176-2.el7.cgslv5_5.0.1.gf2430b1.lite",
    "elfutils-libelf-devel-0.176-2.el7.cgslv5_5.0.1.gf2430b1.lite",
    "elfutils-libelf-devel-static-0.176-2.el7.cgslv5_5.0.1.gf2430b1.lite",
    "elfutils-libelf-lang-0.176-2.el7.cgslv5_5.0.1.gf2430b1.lite",
    "elfutils-libs-0.176-2.el7.cgslv5_5.0.1.gf2430b1.lite"
  ],
  "CGSL MAIN 5.05": [
    "elfutils-0.176-2.el7.cgslv5_5",
    "elfutils-debuginfo-0.176-2.el7.cgslv5_5",
    "elfutils-default-yama-scope-0.176-2.el7.cgslv5_5",
    "elfutils-devel-0.176-2.el7.cgslv5_5",
    "elfutils-devel-static-0.176-2.el7.cgslv5_5",
    "elfutils-libelf-0.176-2.el7.cgslv5_5",
    "elfutils-libelf-devel-0.176-2.el7.cgslv5_5",
    "elfutils-libelf-devel-static-0.176-2.el7.cgslv5_5",
    "elfutils-libs-0.176-2.el7.cgslv5_5"
  ]
};
pkg_list = pkgs[release];

foreach (pkg in pkg_list)
  if (rpm_check(release:"ZTE " + release, 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 Fedora Security Advisory FEDORA-2019-44a9d99647.
#

include("compat.inc");

if (description)
{
  script_id(122279);
  script_version("1.3");
  script_cvs_date("Date: 2020/02/12");

  script_cve_id("CVE-2019-7146", "CVE-2019-7148", "CVE-2019-7149", "CVE-2019-7150", "CVE-2019-7664", "CVE-2019-7665");
  script_xref(name:"FEDORA", value:"2019-44a9d99647");

  script_name(english:"Fedora 29 : elfutils (2019-44a9d99647)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"New upstream release 0.176. Fixes CVE-2019-7146, CVE-2019-7148,
CVE-2019-7149, CVE-2019-7150, CVE-2019-7664 and CVE-2019-7665.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bodhi.fedoraproject.org/updates/FEDORA-2019-44a9d99647"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected elfutils package."
  );
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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-2019-7665");
  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:fedoraproject:fedora:elfutils");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:29");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/02/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/02/19");
  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:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/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/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^29([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 29", "Fedora " + 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);


flag = 0;
if (rpm_check(release:"FC29", reference:"elfutils-0.176-1.fc29")) 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, "elfutils");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2019:3575. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(130553);
  script_version("1.2");
  script_cvs_date("Date: 2019/12/17");

  script_cve_id("CVE-2019-7146", "CVE-2019-7149", "CVE-2019-7150", "CVE-2019-7664", "CVE-2019-7665");
  script_xref(name:"RHSA", value:"2019:3575");

  script_name(english:"RHEL 8 : elfutils (RHSA-2019:3575)");
  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
8.

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#1683705)

Security Fix(es) :

* elfutils: buffer over-read in the ebl_object_note function in
eblobjnote.c in libebl (CVE-2019-7146)

* 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 8.1 Release Notes linked from the References section."
  );
  # https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?774148ae"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2019:3575"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2019-7146"
  );
  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:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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-2019-7665");
  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-debugsource");
  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-debuginfo");
  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:"p-cpe:/a:redhat:enterprise_linux:elfutils-libs-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/11/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/06");
  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:"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:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 8.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-2019:3575";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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:"RHEL8", cpu:"s390x", reference:"elfutils-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"elfutils-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"aarch64", reference:"elfutils-debuginfo-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"i686", reference:"elfutils-debuginfo-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"elfutils-debuginfo-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"elfutils-debuginfo-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"aarch64", reference:"elfutils-debugsource-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"i686", reference:"elfutils-debugsource-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"elfutils-debugsource-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"elfutils-debugsource-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", reference:"elfutils-default-yama-scope-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"i686", reference:"elfutils-devel-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"elfutils-devel-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"elfutils-devel-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"aarch64", reference:"elfutils-devel-static-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"i686", reference:"elfutils-devel-static-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"elfutils-devel-static-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"elfutils-devel-static-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"i686", reference:"elfutils-libelf-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"elfutils-libelf-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"elfutils-libelf-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"aarch64", reference:"elfutils-libelf-debuginfo-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"i686", reference:"elfutils-libelf-debuginfo-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"elfutils-libelf-debuginfo-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"elfutils-libelf-debuginfo-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"i686", reference:"elfutils-libelf-devel-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"elfutils-libelf-devel-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"elfutils-libelf-devel-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"aarch64", reference:"elfutils-libelf-devel-static-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"i686", reference:"elfutils-libelf-devel-static-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"elfutils-libelf-devel-static-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"elfutils-libelf-devel-static-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"i686", reference:"elfutils-libs-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"elfutils-libs-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"elfutils-libs-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"aarch64", reference:"elfutils-libs-debuginfo-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"i686", reference:"elfutils-libs-debuginfo-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"s390x", reference:"elfutils-libs-debuginfo-0.176-5.el8")) flag++;
  if (rpm_check(release:"RHEL8", cpu:"x86_64", reference:"elfutils-libs-debuginfo-0.176-5.el8")) flag++;

  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      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-debugsource / etc");
  }
}