Samba 4.19.0rc2 < 4.19.2 DoS

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

include('compat.inc');

if (description)
{
  script_id(185710);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/12/20");

  script_cve_id("CVE-2023-5568");
  script_xref(name:"IAVA", value:"2023-A-0611");

  script_name(english:"Samba 4.19.0rc2 < 4.19.2 DoS");

  script_set_attribute(attribute:"synopsis", value:
"The remote Samba server is potentially affected by a denial of service.");
  script_set_attribute(attribute:"description", value:
"The version of Samba running on the remote host is potentially affected by a heap-based buffer overflow flaw. It could
allow a remote, authenticated attacker to exploit this vulnerability to cause a denial of service.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.samba.org/samba/history/samba-4.19.2.html");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.samba.org/show_bug.cgi?id=15491");
  script_set_attribute(attribute:"see_also", value:"https://www.samba.org/samba/history/security.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Samba version 4.19.2.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C");
  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:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-5568");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/10/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/10/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/15");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:samba:samba");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("smb_nativelanman.nasl");
  script_require_keys("SMB/NativeLanManager", "SMB/samba");

  exit(0);
}

include('vcf.inc');
include('vcf_extras.inc');

var app_info = vcf::samba::get_app_info();

vcf::check_granularity(app_info:app_info, sig_segments:3);

var constraints = [
  {'min_version':'4.19.0rc2',  'fixed_version':'4.19.2'}
];

vcf::check_version_and_report(
  app_info: app_info,
  constraints: constraints,
  require_paranoia: TRUE, # Require paranoia due to backporting concerns
  severity: SECURITY_WARNING
);