Linux Distros Unpatched Vulnerability : CVE-2019-9587

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

include('compat.inc');

if (description)
{
  script_id(254021);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/21");

  script_cve_id("CVE-2019-9587");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2019-9587");

  script_set_attribute(attribute:"synopsis", value:
"The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be
patched.");
  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - There is a stack consumption issue in md5Round1() located in Decrypt.cc in Xpdf 4.01. It can be triggered
    by sending a crafted pdf file to (for example) the pdfimages binary. It allows an attacker to cause Denial
    of Service (Segmentation fault) or possibly have unspecified other impact. This is related to
    Catalog::countPageTree. (CVE-2019-9587)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2019-9587");
  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
  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:POC/RL:U/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:P/RL:U/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-9587");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/08/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:24.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:25.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:25.10");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:texlive-bin");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl", "set_linux_os_id.nasl");
  script_require_keys("Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched", "Host/OS/identifier");
  script_require_ports("Host/OS/Ubuntu Linux-16.04", "Host/OS/Ubuntu Linux-18.04", "Host/OS/Ubuntu Linux-20.04", "Host/OS/Ubuntu Linux-22.04", "Host/OS/Ubuntu Linux-24.04", "Host/OS/Ubuntu Linux-25.04", "Host/OS/Ubuntu Linux-25.10");

  exit(0);
}

if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/Debian/dpkg-l"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "libkpathsea-dev"},
          {"reference": "libkpathsea6"},
          {"reference": "libptexenc-dev"},
          {"reference": "libptexenc1"},
          {"reference": "libsynctex-dev"},
          {"reference": "libsynctex1"},
          {"reference": "libtexlua52"},
          {"reference": "libtexlua52-dev"},
          {"reference": "libtexluajit-dev"},
          {"reference": "libtexluajit2"},
          {"reference": "texlive-binaries"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "libkpathsea-dev"},
          {"reference": "libkpathsea6"},
          {"reference": "libptexenc-dev"},
          {"reference": "libptexenc1"},
          {"reference": "libsynctex-dev"},
          {"reference": "libsynctex1"},
          {"reference": "libtexlua52"},
          {"reference": "libtexlua52-dev"},
          {"reference": "libtexluajit-dev"},
          {"reference": "libtexluajit2"},
          {"reference": "texlive-binaries"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "libkpathsea-dev"},
          {"reference": "libkpathsea6"},
          {"reference": "libptexenc-dev"},
          {"reference": "libptexenc1"},
          {"reference": "libsynctex-dev"},
          {"reference": "libsynctex2"},
          {"reference": "libtexlua53"},
          {"reference": "libtexlua53-dev"},
          {"reference": "libtexluajit-dev"},
          {"reference": "libtexluajit2"},
          {"reference": "texlive-binaries"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "libkpathsea-dev"},
          {"reference": "libkpathsea6"},
          {"reference": "libptexenc-dev"},
          {"reference": "libptexenc1"},
          {"reference": "libsynctex-dev"},
          {"reference": "libsynctex2"},
          {"reference": "libtexlua53"},
          {"reference": "libtexlua53-dev"},
          {"reference": "libtexluajit-dev"},
          {"reference": "libtexluajit2"},
          {"reference": "texlive-binaries"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "libkpathsea-dev"},
          {"reference": "libkpathsea6"},
          {"reference": "libptexenc-dev"},
          {"reference": "libptexenc1"},
          {"reference": "libsynctex-dev"},
          {"reference": "libsynctex2"},
          {"reference": "libtexlua-dev"},
          {"reference": "libtexlua53"},
          {"reference": "libtexlua53-5"},
          {"reference": "libtexlua53-dev"},
          {"reference": "libtexluajit-dev"},
          {"reference": "libtexluajit2"},
          {"reference": "texlive-binaries"},
          {"reference": "texlive-binaries-sse2"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.04",
        "pkgs": [
          {"reference": "texlive-bin"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.10": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.10",
        "pkgs": [
          {"reference": "texlive-bin"}
        ]
      }
    ]
  }
};

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');
}