Linux Distros Unpatched Vulnerability : CVE-2023-48235

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

include('compat.inc');

if (description)
{
  script_id(227090);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/10/08");

  script_cve_id("CVE-2023-48235");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2023-48235");

  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.

  - Vim is an open source command line text editor. When parsing relative ex addresses one may unintentionally
    cause an overflow. Ironically this happens in the existing overflow check, because the line number becomes
    negative and LONG_MAX - lnum will cause the overflow. Impact is low, user interaction is required and a
    crash may not even happen in all situations. This issue has been addressed in commit `060623e` which has
    been included in release version 9.0.2110. Users are advised to upgrade. There are no known workarounds
    for this vulnerability. (CVE-2023-48235)

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-2023-48235");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-48235");
  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:N/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:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-48235");

  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:"2023/11/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/03/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:9");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:vim");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:vim-X11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:vim-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:vim-enhanced");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:vim-filesystem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:vim-minimal");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:vim");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vim");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vim-X11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vim-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vim-enhanced");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vim-filesystem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:vim-minimal");
  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 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-8", "Host/OS/Debian Linux-11", "Host/OS/Debian Linux-12", "Host/OS/Red Hat Enterprise Linux-8", "Host/OS/Red Hat Enterprise Linux-9");

  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/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": "vim"},
          {"reference": "vim-athena"},
          {"reference": "vim-common"},
          {"reference": "vim-doc"},
          {"reference": "vim-gtk3"},
          {"reference": "vim-gui-common"},
          {"reference": "vim-motif"},
          {"reference": "vim-nox"},
          {"reference": "vim-runtime"},
          {"reference": "vim-tiny"},
          {"reference": "xxd"}
        ]
      }
    ]
  },
  "Debian Linux-11": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "11",
        "pkgs": [
          {"reference": "vim"},
          {"reference": "vim-athena"},
          {"reference": "vim-common"},
          {"reference": "vim-doc"},
          {"reference": "vim-gtk"},
          {"reference": "vim-gtk3"},
          {"reference": "vim-gui-common"},
          {"reference": "vim-nox"},
          {"reference": "vim-runtime"},
          {"reference": "vim-tiny"},
          {"reference": "xxd"}
        ]
      }
    ]
  },
  "CentOS Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "vim"},
          {"reference": "vim-X11"},
          {"reference": "vim-common"},
          {"reference": "vim-enhanced"},
          {"reference": "vim-filesystem"},
          {"reference": "vim-minimal"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-8": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "8",
        "pkgs": [
          {"reference": "vim"},
          {"reference": "vim-X11"},
          {"reference": "vim-common"},
          {"reference": "vim-enhanced"},
          {"reference": "vim-filesystem"},
          {"reference": "vim-minimal"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-9": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "9",
        "pkgs": [
          {"reference": "vim"},
          {"reference": "vim-X11"},
          {"reference": "vim-common"},
          {"reference": "vim-enhanced"},
          {"reference": "vim-filesystem"},
          {"reference": "vim-minimal"}
        ]
      }
    ]
  }
};

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');
}