AlmaLinux 8 : gcc (ALSA-2021:4386)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# AlmaLinux Security Advisory ALSA-2021:4386.
##

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(157537);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/13");

  script_cve_id("CVE-2018-20673");
  script_xref(name:"ALSA", value:"2021:4386");

  script_name(english:"AlmaLinux 8 : gcc (ALSA-2021:4386)");

  script_set_attribute(attribute:"synopsis", value:
"The remote AlmaLinux host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the
ALSA-2021:4386 advisory.

  - The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1,
    contains an integer overflow vulnerability (for Create an array for saving the template argument values)
    that can trigger a heap-based buffer overflow, as demonstrated by nm. (CVE-2018-20673)

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:"https://errata.almalinux.org/8/ALSA-2021-4386.html");
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-20673");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/12/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/11/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/02/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:cpp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:gcc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:gcc-c++");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:gcc-gdb-plugin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:gcc-gfortran");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:gcc-offload-nvptx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:gcc-plugin-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libasan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libatomic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libatomic-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libgcc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libgfortran");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libgomp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libgomp-offload-nvptx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libitm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libitm-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:liblsan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libquadmath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libquadmath-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libstdc++");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libstdc++-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libstdc++-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libstdc++-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libtsan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:alma:linux:libubsan");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:alma:linux:8");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AlmaLinux/release", "Host/AlmaLinux/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);
var release = get_kb_item('Host/AlmaLinux/release');
if (isnull(release) || 'AlmaLinux' >!< release) audit(AUDIT_OS_NOT, 'AlmaLinux');
var os_ver = pregmatch(pattern: "AlmaLinux release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'AlmaLinux');
var os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'AlmaLinux 8.x', 'AlmaLinux ' + os_ver);

if (!get_kb_item('Host/AlmaLinux/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) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);

var pkgs = [
    {'reference':'cpp-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'gcc-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'gcc-c++-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'gcc-gdb-plugin-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'gcc-gdb-plugin-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'gcc-gfortran-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'gcc-offload-nvptx-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'gcc-plugin-devel-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'gcc-plugin-devel-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libasan-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libasan-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libatomic-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libatomic-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libatomic-static-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libatomic-static-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libgcc-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libgcc-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libgfortran-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libgfortran-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libgomp-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libgomp-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libgomp-offload-nvptx-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libitm-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libitm-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libitm-devel-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libitm-devel-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'liblsan-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libquadmath-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libquadmath-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libquadmath-devel-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libquadmath-devel-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libstdc++-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libstdc++-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libstdc++-devel-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libstdc++-devel-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libstdc++-docs-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libstdc++-static-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libstdc++-static-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libtsan-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libubsan-8.5.0-3.el8.alma', 'cpu':'i686', 'release':'8', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'libubsan-8.5.0-3.el8.alma', 'cpu':'x86_64', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var release = NULL;
  var sp = NULL;
  var cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) release = 'Alma-' + package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference && release && (!exists_check || rpm_exists(release:release, rpm:exists_check))) {
    if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'cpp / gcc / gcc-c++ / gcc-gdb-plugin / gcc-gfortran / etc');
}