Linux Distros Unpatched Vulnerability : CVE-2018-20673

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

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  script_set_attribute(attribute:"synopsis", value:
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"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - 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 relies on the presence of the package as reported by the vendor.");
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          {"reference": "binutils-powerpc64le-linux-gnu-dbg"},
          {"reference": "binutils-s390x-linux-gnu"},
          {"reference": "binutils-s390x-linux-gnu-dbg"},
          {"reference": "binutils-source"},
          {"reference": "binutils-x86-64-linux-gnu"},
          {"reference": "binutils-x86-64-linux-gnu-dbg"},
          {"reference": "libbinutils"},
          {"reference": "libbinutils-dbg"},
          {"reference": "libctf-nobfd0"},
          {"reference": "libctf-nobfd0-dbg"},
          {"reference": "libctf0"},
          {"reference": "libctf0-dbg"},
          {"reference": "libgprofng0"},
          {"reference": "libgprofng0-dbg"},
          {"reference": "libsframe1"},
          {"reference": "libsframe1-dbg"}
        ]
      }
    ]
  },
  "Ubuntu Linux-14.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14.04",
        "pkgs": [
          {"reference": "binutils"},
          {"reference": "binutils-dev"},
          {"reference": "binutils-doc"},
          {"reference": "binutils-hppa64"},
          {"reference": "binutils-multiarch"},
          {"reference": "binutils-multiarch-dev"},
          {"reference": "binutils-source"},
          {"reference": "binutils-static"},
          {"reference": "binutils-static-udeb"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "binutils"},
          {"reference": "binutils-aarch64-linux-gnu"},
          {"reference": "binutils-alpha-linux-gnu"},
          {"reference": "binutils-arm-linux-gnueabi"},
          {"reference": "binutils-arm-linux-gnueabihf"},
          {"reference": "binutils-dev"},
          {"reference": "binutils-doc"},
          {"reference": "binutils-hppa-linux-gnu"},
          {"reference": "binutils-hppa64-linux-gnu"},
          {"reference": "binutils-m68k-linux-gnu"},
          {"reference": "binutils-mips-linux-gnu"},
          {"reference": "binutils-mips64-linux-gnuabi64"},
          {"reference": "binutils-mips64el-linux-gnuabi64"},
          {"reference": "binutils-mipsel-linux-gnu"},
          {"reference": "binutils-multiarch"},
          {"reference": "binutils-multiarch-dev"},
          {"reference": "binutils-powerpc-linux-gnu"},
          {"reference": "binutils-powerpc-linux-gnuspe"},
          {"reference": "binutils-powerpc64-linux-gnu"},
          {"reference": "binutils-powerpc64le-linux-gnu"},
          {"reference": "binutils-s390x-linux-gnu"},
          {"reference": "binutils-sh4-linux-gnu"},
          {"reference": "binutils-source"},
          {"reference": "binutils-sparc64-linux-gnu"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "binutils"},
          {"reference": "binutils-aarch64-linux-gnu"},
          {"reference": "binutils-aarch64-linux-gnu-dbg"},
          {"reference": "binutils-alpha-linux-gnu"},
          {"reference": "binutils-alpha-linux-gnu-dbg"},
          {"reference": "binutils-arm-linux-gnueabi"},
          {"reference": "binutils-arm-linux-gnueabi-dbg"},
          {"reference": "binutils-arm-linux-gnueabihf"},
          {"reference": "binutils-arm-linux-gnueabihf-dbg"},
          {"reference": "binutils-common"},
          {"reference": "binutils-dev"},
          {"reference": "binutils-doc"},
          {"reference": "binutils-for-build"},
          {"reference": "binutils-for-host"},
          {"reference": "binutils-hppa-linux-gnu"},
          {"reference": "binutils-hppa-linux-gnu-dbg"},
          {"reference": "binutils-hppa64-linux-gnu"},
          {"reference": "binutils-hppa64-linux-gnu-dbg"},
          {"reference": "binutils-i686-linux-gnu"},
          {"reference": "binutils-i686-linux-gnu-dbg"},
          {"reference": "binutils-mips-linux-gnu"},
          {"reference": "binutils-mips-linux-gnu-dbg"},
          {"reference": "binutils-mips64el-linux-gnuabi64"},
          {"reference": "binutils-mips64el-linux-gnuabi64-dbg"},
          {"reference": "binutils-mipsel-linux-gnu"},
          {"reference": "binutils-mipsel-linux-gnu-dbg"},
          {"reference": "binutils-multiarch"},
          {"reference": "binutils-multiarch-dbg"},
          {"reference": "binutils-multiarch-dev"},
          {"reference": "binutils-powerpc64le-linux-gnu"},
          {"reference": "binutils-powerpc64le-linux-gnu-dbg"},
          {"reference": "binutils-s390x-linux-gnu"},
          {"reference": "binutils-s390x-linux-gnu-dbg"},
          {"reference": "binutils-source"},
          {"reference": "binutils-x86-64-linux-gnu"},
          {"reference": "binutils-x86-64-linux-gnu-dbg"},
          {"reference": "libbinutils"},
          {"reference": "libbinutils-dbg"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-5": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "5",
        "pkgs": [
          {"reference": "binutils"},
          {"reference": "gcc"},
          {"reference": "gdb"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-6": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "6",
        "pkgs": [
          {"reference": "binutils"},
          {"reference": "binutils-devel"},
          {"reference": "cpp"},
          {"reference": "gcc"},
          {"reference": "gcc-c++"},
          {"reference": "gcc-gfortran"},
          {"reference": "gcc-gnat"},
          {"reference": "gcc-java"},
          {"reference": "gcc-objc"},
          {"reference": "gcc-objc++"},
          {"reference": "gdb"},
          {"reference": "gdb-gdbserver"},
          {"reference": "libatomic"},
          {"reference": "libgcc"},
          {"reference": "libgcj"},
          {"reference": "libgcj-devel"},
          {"reference": "libgcj-src"},
          {"reference": "libgfortran"},
          {"reference": "libgnat"},
          {"reference": "libgnat-devel"},
          {"reference": "libgomp"},
          {"reference": "libitm"},
          {"reference": "libmudflap"},
          {"reference": "libmudflap-devel"},
          {"reference": "libobjc"},
          {"reference": "libquadmath"},
          {"reference": "libstdc++"},
          {"reference": "libstdc++-devel"},
          {"reference": "libstdc++-docs"}
        ]
      }
    ]
  },
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "binutils"},
          {"reference": "binutils-devel"},
          {"reference": "cpp"},
          {"reference": "gcc"},
          {"reference": "gcc-c++"},
          {"reference": "gcc-gfortran"},
          {"reference": "gcc-gnat"},
          {"reference": "gcc-go"},
          {"reference": "gcc-objc"},
          {"reference": "gcc-objc++"},
          {"reference": "gcc-plugin-devel"},
          {"reference": "libasan"},
          {"reference": "libasan-static"},
          {"reference": "libatomic"},
          {"reference": "libatomic-static"},
          {"reference": "libgcc"},
          {"reference": "libgfortran"},
          {"reference": "libgfortran-static"},
          {"reference": "libgnat"},
          {"reference": "libgnat-devel"},
          {"reference": "libgnat-static"},
          {"reference": "libgo"},
          {"reference": "libgo-devel"},
          {"reference": "libgo-static"},
          {"reference": "libgomp"},
          {"reference": "libitm"},
          {"reference": "libitm-devel"},
          {"reference": "libitm-static"},
          {"reference": "libmudflap"},
          {"reference": "libmudflap-devel"},
          {"reference": "libmudflap-static"},
          {"reference": "libobjc"},
          {"reference": "libquadmath"},
          {"reference": "libquadmath-devel"},
          {"reference": "libquadmath-static"},
          {"reference": "libstdc++"},
          {"reference": "libstdc++-devel"},
          {"reference": "libstdc++-docs"},
          {"reference": "libstdc++-static"},
          {"reference": "libtsan"},
          {"reference": "libtsan-static"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "binutils"},
          {"reference": "binutils-devel"},
          {"reference": "cpp"},
          {"reference": "gcc"},
          {"reference": "gcc-c++"},
          {"reference": "gcc-gfortran"},
          {"reference": "gcc-gnat"},
          {"reference": "gcc-go"},
          {"reference": "gcc-objc"},
          {"reference": "gcc-objc++"},
          {"reference": "gcc-plugin-devel"},
          {"reference": "libasan"},
          {"reference": "libasan-static"},
          {"reference": "libatomic"},
          {"reference": "libatomic-static"},
          {"reference": "libgcc"},
          {"reference": "libgfortran"},
          {"reference": "libgfortran-static"},
          {"reference": "libgnat"},
          {"reference": "libgnat-devel"},
          {"reference": "libgnat-static"},
          {"reference": "libgo"},
          {"reference": "libgo-devel"},
          {"reference": "libgo-static"},
          {"reference": "libgomp"},
          {"reference": "libitm"},
          {"reference": "libitm-devel"},
          {"reference": "libitm-static"},
          {"reference": "libmudflap"},
          {"reference": "libmudflap-devel"},
          {"reference": "libmudflap-static"},
          {"reference": "libobjc"},
          {"reference": "libquadmath"},
          {"reference": "libquadmath-devel"},
          {"reference": "libquadmath-static"},
          {"reference": "libstdc++"},
          {"reference": "libstdc++-devel"},
          {"reference": "libstdc++-docs"},
          {"reference": "libstdc++-static"},
          {"reference": "libtsan"},
          {"reference": "libtsan-static"}
        ]
      }
    ]
  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "binutils"},
          {"reference": "binutils-devel"},
          {"reference": "mingw-binutils"},
          {"reference": "mingw-binutils-generic"},
          {"reference": "mingw32-binutils"},
          {"reference": "mingw64-binutils"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "binutils"},
          {"reference": "binutils-devel"},
          {"reference": "mingw-binutils"},
          {"reference": "mingw-binutils-generic"},
          {"reference": "mingw32-binutils"},
          {"reference": "mingw64-binutils"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');
var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}