Linux Distros Unpatched Vulnerability : CVE-2024-6923

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

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{
  script_id(230973);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/23");

  script_cve_id("CVE-2024-6923");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2024-6923");

  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 MEDIUM severity vulnerability affecting CPython. The email module didn't properly quote
    newlines for email headers when serializing an email message allowing for header injection when an email
    is serialized. (CVE-2024-6923)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2024-6923");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2024-6923");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2024-6923");
  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:L/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:U/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-6923");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"vendor_unpatched", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/08/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/03/06");

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

  script_dependencies("set_linux_os_id.nasl", "ssh_get_info2.nasl");
  script_require_keys("Host/OS/identifier", "Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched");
  script_require_ports("Host/OS/CentOS Linux-7", "Host/OS/CentOS Linux-8", "Host/OS/Debian Linux-11", "Host/OS/Debian Linux-12", "Host/OS/Red Hat Enterprise Linux-6", "Host/OS/Red Hat Enterprise Linux-7", "Host/OS/Red Hat Enterprise Linux-8", "Host/OS/Ubuntu Linux-14.04", "Host/OS/Ubuntu Linux-16.04", "Host/OS/Ubuntu Linux-18.04", "Host/OS/Ubuntu Linux-20.04", "Host/OS/Ubuntu Linux-22.04");

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}

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/CentOS/rpm-list")) && empty_or_null(get_one_kb_item("Host/Debian/dpkg-l")) && empty_or_null(get_one_kb_item("Host/RedHat/rpm-list"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Debian Linux-12": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "12",
        "pkgs": [
          {"reference": "pypy3"},
          {"reference": "pypy3-dev"},
          {"reference": "pypy3-doc"},
          {"reference": "pypy3-lib"},
          {"reference": "pypy3-lib-testsuite"},
          {"reference": "pypy3-tk"},
          {"reference": "pypy3-venv"}
        ]
      }
    ]
  },
  "Debian Linux-11": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "11",
        "pkgs": [
          {"reference": "idle-python2.7"},
          {"reference": "libpython2.7"},
          {"reference": "libpython2.7-dbg"},
          {"reference": "libpython2.7-dev"},
          {"reference": "libpython2.7-minimal"},
          {"reference": "libpython2.7-stdlib"},
          {"reference": "libpython2.7-testsuite"},
          {"reference": "python2.7"},
          {"reference": "python2.7-dbg"},
          {"reference": "python2.7-dev"},
          {"reference": "python2.7-doc"},
          {"reference": "python2.7-examples"},
          {"reference": "python2.7-minimal"}
        ]
      }
    ]
  },
  "Ubuntu Linux-14.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "14.04",
        "pkgs": [
          {"reference": "idle-python3.4"},
          {"reference": "libpython3.4"},
          {"reference": "libpython3.4-dbg"},
          {"reference": "libpython3.4-dev"},
          {"reference": "libpython3.4-minimal"},
          {"reference": "libpython3.4-stdlib"},
          {"reference": "libpython3.4-testsuite"},
          {"reference": "python3.4"},
          {"reference": "python3.4-dbg"},
          {"reference": "python3.4-dev"},
          {"reference": "python3.4-doc"},
          {"reference": "python3.4-examples"},
          {"reference": "python3.4-minimal"},
          {"reference": "python3.5"}
        ]
      }
    ]
  },
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "idle-python3.5"},
          {"reference": "libpython3.5"},
          {"reference": "libpython3.5-dbg"},
          {"reference": "libpython3.5-dev"},
          {"reference": "libpython3.5-minimal"},
          {"reference": "libpython3.5-stdlib"},
          {"reference": "libpython3.5-testsuite"},
          {"reference": "python3.5"},
          {"reference": "python3.5-dbg"},
          {"reference": "python3.5-dev"},
          {"reference": "python3.5-doc"},
          {"reference": "python3.5-examples"},
          {"reference": "python3.5-minimal"},
          {"reference": "python3.5-venv"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "idle-python3.6"},
          {"reference": "libpython3.6"},
          {"reference": "libpython3.6-dbg"},
          {"reference": "libpython3.6-dev"},
          {"reference": "libpython3.6-minimal"},
          {"reference": "libpython3.6-stdlib"},
          {"reference": "libpython3.6-testsuite"},
          {"reference": "python3.6"},
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  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "python3.9"}
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  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "python3.11"}
        ]
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    ]
  },
  "Red Hat Enterprise Linux-6": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "6",
        "pkgs": [
          {"reference": "python"},
          {"reference": "python-devel"},
          {"reference": "python-libs"},
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  },
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "python"},
          {"reference": "python-debug"},
          {"reference": "python-devel"},
          {"reference": "python-libs"},
          {"reference": "python-test"},
          {"reference": "python-tools"},
          {"reference": "python3"},
          {"reference": "python3-debug"},
          {"reference": "python3-devel"},
          {"reference": "python3-idle"},
          {"reference": "python3-libs"},
          {"reference": "python3-test"},
          {"reference": "python3-tkinter"},
          {"reference": "tkinter"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "python"},
          {"reference": "python-debug"},
          {"reference": "python-devel"},
          {"reference": "python-libs"},
          {"reference": "python-test"},
          {"reference": "python-tools"},
          {"reference": "python3"},
          {"reference": "python3-debug"},
          {"reference": "python3-devel"},
          {"reference": "python3-idle"},
          {"reference": "python3-libs"},
          {"reference": "python3-test"},
          {"reference": "python3-tkinter"},
          {"reference": "tkinter"}
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  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "python2"},
          {"reference": "python2-debug"},
          {"reference": "python2-devel"},
          {"reference": "python2-libs"},
          {"reference": "python2-test"},
          {"reference": "python2-tkinter"},
          {"reference": "python2-tools"}
        ]
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    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "python2"},
          {"reference": "python2-debug"},
          {"reference": "python2-devel"},
          {"reference": "python2-libs"},
          {"reference": "python2-test"},
          {"reference": "python2-tkinter"},
          {"reference": "python2-tools"}
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  }
};

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');
}