CentOS 7 : binutils (CESA-2018:3032)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2018:3032 and 
# CentOS Errata and Security Advisory 2018:3032 respectively.
#

include("compat.inc");

if (description)
{
  script_id(118983);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/04/08");

  script_cve_id("CVE-2018-10372", "CVE-2018-10373", "CVE-2018-10534", "CVE-2018-10535", "CVE-2018-13033", "CVE-2018-7208", "CVE-2018-7568", "CVE-2018-7569", "CVE-2018-7642", "CVE-2018-7643", "CVE-2018-8945");
  script_xref(name:"RHSA", value:"2018:3032");

  script_name(english:"CentOS 7 : binutils (CESA-2018:3032)");
  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 binutils 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 binutils packages provide a collection of binary utilities for the
manipulation of object code in various object file formats. It
includes the ar, as, gprof, ld, nm, objcopy, objdump, ranlib, readelf,
size, strings, strip, and addr2line utilities.

Security Fix(es) :

* binutils: Improper bounds check in coffgen.c:coff_pointerize_aux()
allows for denial of service when parsing a crafted COFF file
(CVE-2018-7208)

* binutils: integer overflow via an ELF file with corrupt dwarf1 debug
information in libbfd library (CVE-2018-7568)

* binutils: integer underflow or overflow via an ELF file with a
corrupt DWARF FORM block in libbfd library (CVE-2018-7569)

* binutils: NULL pointer dereference in swap_std_reloc_in function in
aoutx.h resulting in crash (CVE-2018-7642)

* binutils: Integer overflow in the display_debug_ranges function
resulting in crash (CVE-2018-7643)

* binutils: Crash in elf.c:bfd_section_from_shdr() with crafted
executable (CVE-2018-8945)

* binutils: Heap-base buffer over-read in
dwarf.c:process_cu_tu_index() allows for denial of service via crafted
file (CVE-2018-10372)

* binutils: NULL pointer dereference in dwarf2.c:concat_filename()
allows for denial of service via crafted file (CVE-2018-10373)

* binutils: out of bounds memory write in peXXigen.c files
(CVE-2018-10534)

* binutils: NULL pointer dereference in elf.c (CVE-2018-10535)

* binutils: Uncontrolled Resource Consumption in execution of nm
(CVE-2018-13033)

For more details about the security issue(s), including the impact, a
CVSS score, 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 7.6 Release Notes linked from the References section."
  );
  # https://lists.centos.org/pipermail/centos-cr-announce/2018-November/005330.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ba6e36ab"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Update the affected binutils 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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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-2018-7208");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:binutils");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:binutils-devel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/02/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/11/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/16");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2021 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:"binutils-2.27-34.base.el7")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"binutils-devel-2.27-34.base.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_WARNING,
    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, "binutils / binutils-devel");
}