ISC BIND 9.18.0 < 9.18.7 / 9.19.0 < 9.19.5 Memory Exhaustion (cve-2022-2906)

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

include('compat.inc');

if (description)
{
  script_id(165302);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/01/26");

  script_cve_id("CVE-2022-2906");
  script_xref(name:"IAVA", value:"2022-A-0387-S");

  script_name(english:"ISC BIND 9.18.0 < 9.18.7 / 9.19.0 < 9.19.5 Memory Exhaustion (cve-2022-2906)");

  script_set_attribute(attribute:"synopsis", value:
"The remote name server is affected by a memory exhaustion vulnerability vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of ISC BIND installed on the remote host is prior to tested version. It is, therefore, affected by a
vulnerability as referenced in the cve-2022-2906 advisory.

  - An attacker can leverage this flaw to gradually erode available memory to the point where named crashes
    for lack of resources. Upon restart the attacker would have to begin again, but nevertheless there is the
    potential to deny service. (CVE-2022-2906)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://kb.isc.org/v1/docs/cve-2022-2906");
  script_set_attribute(attribute:"solution", value:
"Upgrade to ISC BIND version 9.18.7 / 9.19.5 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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:N/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-2022-2906");

  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:"2022/09/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/09/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/09/22");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:isc:bind");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"DNS");

  script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("bind_version.nasl");
  script_require_keys("bind/version", "Settings/ParanoidReport");

  exit(0);
}

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

vcf::bind::initialize();

var app_info = vcf::get_app_info(app:'BIND', port:53, kb_ver:'bind/version', service:TRUE, proto:'UDP');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

var constraints = [
  { 'min_version' : '9.18.0', 'max_version' : '9.18.6', 'fixed_version' : '9.18.7' },
  { 'min_version' : '9.19.0', 'max_version' : '9.19.4', 'fixed_version' : '9.19.5' }
];
constraints = vcf::bind::filter_constraints(constraints:constraints, version:app_info.version);

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);