Lexmark Printers Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2018-15520)

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

include('compat.inc');

if (description)
{
  script_id(503861);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/21");

  script_cve_id("CVE-2018-15520");

  script_name(english:"Lexmark Printers Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2018-15520)");

  script_set_attribute(attribute:"synopsis", value:
"The remote OT asset is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"Various Lexmark devices have a Buffer Overflow vulnerability.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.");
# script_set_attribute(attribute:"see_also", value:"http://support.lexmark.com/index?page=content&id=TE892");
  script_set_attribute(attribute:"solution", value:
"Refer to the vendor advisory.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-15520");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_cwe_id(119);

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/06/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/11/05");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:cx421_firmware:cxnzj");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:cx522_firmware:cxtzj");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:cx62x_firmware:cxtzj");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:cx72x_firmware:cxtat");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:cx82x_firmware:cxtpp");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:cx860_firmware:cxtpp");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:cx92x_firmware:cxtmh");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mb2338_firmware:mxngm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mb2442_firmware:mxtgm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mb2546_firmware:mxtgm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mb2650_firmware:mxtgm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mb2770_firmware:mxtgw");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mc2325_firmware:cxnzj");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mc2425_firmware:cxnzj");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mc2535_firmware:cxtzj");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mc2640_firmware:cxtzj");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mx321_firmware:mxngm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mx42x_firmware:mxtgm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mx52x_firmware:mxtgm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mx622_firmware:mxtgm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mx72x_firmware:mxtgw");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:mx82x_firmware:mxtgw");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xc2235_firmware:cxtzj");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xc41x0_firmware:cxtat");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xc4240_firmware:cxtzj");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xc6152_firmware:cxtpp");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xc8155_firmware:cxtpp");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xc8160_firmware:cxtpp");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xc92x5_firmware:cxtmh");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xm124x_firmware:mxtgm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xm3250_firmware:mxtgm");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xm5370_firmware:mxtgw");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xm7355_firmware:mxtgw");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:lexmark:xm7370_firmware:mxtgw");
  script_set_attribute(attribute:"generated_plugin", value:"former");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tenable.ot");

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

  script_dependencies("tenable_ot_api_integration.nasl");
  script_require_keys("Tenable.ot/LexmarkInternational");

  exit(0);
}


include('tenable_ot_cve_funcs.inc');

get_kb_item_or_exit('Tenable.ot/LexmarkInternational');

var asset = tenable_ot::assets::get(vendor:'LexmarkInternational');

var vuln_cpes = {
    "cpe:/o:lexmark:cx82x_firmware:u01" :
        {"versionEndIncluding" : "cxtpp.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx82x_firmware:u02" :
        {"versionEndIncluding" : "cxtpp.052.204", "versionStartIncluding" : "cxtpp.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx860_firmware:u01" :
        {"versionEndIncluding" : "cxtpp.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx860_firmware:u02" :
        {"versionEndIncluding" : "cxtpp.052.204", "versionStartIncluding" : "cxtpp.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc6152_firmware:u01" :
        {"versionEndIncluding" : "cxtpp.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc6152_firmware:u02" :
        {"versionEndIncluding" : "cxtpp.052.204", "versionStartIncluding" : "cxtpp.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc8155_firmware:u01" :
        {"versionEndIncluding" : "cxtpp.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc8155_firmware:u02" :
        {"versionEndIncluding" : "cxtpp.052.204", "versionStartIncluding" : "cxtpp.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc8160_firmware:u01" :
        {"versionEndIncluding" : "cxtpp.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc8160_firmware:u02" :
        {"versionEndIncluding" : "cxtpp.052.204", "versionStartIncluding" : "cxtpp.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx72x_firmware:u01" :
        {"versionEndIncluding" : "cxtat.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx72x_firmware:u02" :
        {"versionEndIncluding" : "cxtat.052.204", "versionStartIncluding" : "cxtat.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc41x0_firmware:u01" :
        {"versionEndIncluding" : "cxtat.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc41x0_firmware:u02" :
        {"versionEndIncluding" : "cxtat.052.204", "versionStartIncluding" : "cxtat.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx92x_firmware:u01" :
        {"versionEndIncluding" : "cxtmh.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx92x_firmware:u02" :
        {"versionEndIncluding" : "cxtmh.052.204", "versionStartIncluding" : "cxtmh.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc92x5_firmware:u01" :
        {"versionEndIncluding" : "cxtmh.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc92x5_firmware:u02" :
        {"versionEndIncluding" : "cxtmh.052.204", "versionStartIncluding" : "cxtmh.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx321_firmware:u01" :
        {"versionEndIncluding" : "mxngm.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx321_firmware:u02" :
        {"versionEndIncluding" : "mxngm.052.204", "versionStartIncluding" : "mxngm.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mb2338_firmware:u01" :
        {"versionEndIncluding" : "mxngm.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mb2338_firmware:u02" :
        {"versionEndIncluding" : "mxngm.052.204", "versionStartIncluding" : "mxngm.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx42x_firmware:u01" :
        {"versionEndIncluding" : "mxtgm.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx42x_firmware:u02" :
        {"versionEndIncluding" : "mxtgm.052.204", "versionStartIncluding" : "mxtgm.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx52x_firmware:u01" :
        {"versionEndIncluding" : "mxtgm.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx52x_firmware:u02" :
        {"versionEndIncluding" : "mxtgm.052.204", "versionStartIncluding" : "mxtgm.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx622_firmware:u01" :
        {"versionEndIncluding" : "mxtgm.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx622_firmware:u02" :
        {"versionEndIncluding" : "mxtgm.052.204", "versionStartIncluding" : "mxtgm.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mb2442_firmware:u01" :
        {"versionEndIncluding" : "mxtgm.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mb2442_firmware:u02" :
        {"versionEndIncluding" : "mxtgm.052.204", "versionStartIncluding" : "mxtgm.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mb2546_firmware:u01" :
        {"versionEndIncluding" : "mxtgm.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mb2546_firmware:u02" :
        {"versionEndIncluding" : "mxtgm.052.204", "versionStartIncluding" : "mxtgm.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mb2650_firmware:u01" :
        {"versionEndIncluding" : "mxtgm.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mb2650_firmware:u02" :
        {"versionEndIncluding" : "mxtgm.052.204", "versionStartIncluding" : "mxtgm.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xm124x_firmware:u01" :
        {"versionEndIncluding" : "mxtgm.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xm124x_firmware:u02" :
        {"versionEndIncluding" : "mxtgm.052.204", "versionStartIncluding" : "mxtgm.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xm3250_firmware:u01" :
        {"versionEndIncluding" : "mxtgm.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xm3250_firmware:u02" :
        {"versionEndIncluding" : "mxtgm.052.204", "versionStartIncluding" : "mxtgm.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx72x_firmware:u01" :
        {"versionEndIncluding" : "mxtgw.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx72x_firmware:u02" :
        {"versionEndIncluding" : "mxtgw.052.204", "versionStartIncluding" : "mxtgw.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx82x_firmware:u01" :
        {"versionEndIncluding" : "mxtgw.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mx82x_firmware:u02" :
        {"versionEndIncluding" : "mxtgw.052.204", "versionStartIncluding" : "mxtgw.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mb2770_firmware:u01" :
        {"versionEndIncluding" : "mxtgw.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mb2770_firmware:u02" :
        {"versionEndIncluding" : "mxtgw.052.204", "versionStartIncluding" : "mxtgw.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xm5370_firmware:u01" :
        {"versionEndIncluding" : "mxtgw.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xm5370_firmware:u02" :
        {"versionEndIncluding" : "mxtgw.052.204", "versionStartIncluding" : "mxtgw.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xm7355_firmware:u01" :
        {"versionEndIncluding" : "mxtgw.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xm7355_firmware:u02" :
        {"versionEndIncluding" : "mxtgw.052.204", "versionStartIncluding" : "mxtgw.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xm7370_firmware:u01" :
        {"versionEndIncluding" : "mxtgw.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xm7370_firmware:u02" :
        {"versionEndIncluding" : "mxtgw.052.204", "versionStartIncluding" : "mxtgw.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx421_firmware:u01" :
        {"versionEndIncluding" : "cxnzj.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx421_firmware:u02" :
        {"versionEndIncluding" : "cxnzj.052.204", "versionStartIncluding" : "cxnzj.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mc2325_firmware:u01" :
        {"versionEndIncluding" : "cxnzj.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mc2325_firmware:u02" :
        {"versionEndIncluding" : "cxnzj.052.204", "versionStartIncluding" : "cxnzj.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mc2425_firmware:u01" :
        {"versionEndIncluding" : "cxnzj.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mc2425_firmware:u02" :
        {"versionEndIncluding" : "cxnzj.052.204", "versionStartIncluding" : "cxnzj.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx522_firmware:u01" :
        {"versionEndIncluding" : "cxtzj.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx522_firmware:u02" :
        {"versionEndIncluding" : "cxtzj.052.204", "versionStartIncluding" : "cxtzj.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx62x_firmware:u01" :
        {"versionEndIncluding" : "cxtzj.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:cx62x_firmware:u02" :
        {"versionEndIncluding" : "cxtzj.052.204", "versionStartIncluding" : "cxtzj.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mc2535_firmware:u01" :
        {"versionEndIncluding" : "cxtzj.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mc2535_firmware:u02" :
        {"versionEndIncluding" : "cxtzj.052.204", "versionStartIncluding" : "cxtzj.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mc2640_firmware:u01" :
        {"versionEndIncluding" : "cxtzj.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:mc2640_firmware:u02" :
        {"versionEndIncluding" : "cxtzj.052.204", "versionStartIncluding" : "cxtzj.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc2235_firmware:u01" :
        {"versionEndIncluding" : "cxtzj.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc2235_firmware:u02" :
        {"versionEndIncluding" : "cxtzj.052.204", "versionStartIncluding" : "cxtzj.052.200", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc4240_firmware:u01" :
        {"versionEndIncluding" : "cxtzj.052.024", "family" : "LexmarkInternational"},
    "cpe:/o:lexmark:xc4240_firmware:u02" :
        {"versionEndIncluding" : "cxtzj.052.204", "versionStartIncluding" : "cxtzj.052.200", "family" : "LexmarkInternational"}
};

tenable_ot::cve::compare_and_report(asset:asset, cpes:vuln_cpes, severity:SECURITY_HOLE);