ISC BIND 'RRSIG' Record Type Remote DoS Vulnerability

# SPDX-FileCopyrightText: 2010 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:isc:bind";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.100717");
  script_version("2023-07-28T16:09:07+0000");
  script_tag(name:"last_modification", value:"2023-07-28 16:09:07 +0000 (Fri, 28 Jul 2023)");
  script_tag(name:"creation_date", value:"2010-07-16 12:38:11 +0200 (Fri, 16 Jul 2010)");
  script_tag(name:"cvss_base", value:"2.6");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:H/Au:N/C:N/I:N/A:P");
  script_cve_id("CVE-2010-0213");
  script_name("ISC BIND 'RRSIG' Record Type Remote DoS Vulnerability");
  script_category(ACT_GATHER_INFO);
  script_family("Denial of Service");
  script_copyright("Copyright (C) 2010 Greenbone AG");
  script_dependencies("gb_isc_bind_consolidation.nasl");
  script_mandatory_keys("isc/bind/detected");

  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/41730");
  script_xref(name:"URL", value:"https://www.isc.org/software/bind/advisories/cve-2010-0213");

  script_tag(name:"solution", value:"Updates are available. Please see the references for more information.");

  script_tag(name:"summary", value:"ISC BIND is prone to a remote denial-of-service vulnerability.");

  script_tag(name:"insight", value:"The flaw exists because the software fails to handle certain record types.");

  script_tag(name:"impact", value:"An attacker can exploit this issue to cause the application to fall
  into an infinite loop, denying service to legitimate users.");

  script_tag(name:"affected", value:"ISC BIND versions 9.7.1 and 9.7.1-P1 are vulnerable.");

  script_tag(name:"qod_type", value:"remote_banner_unreliable");
  script_tag(name:"solution_type", value:"VendorFix");

  exit(0);
}

include("version_func.inc");
include("host_details.inc");

if( isnull( port = get_app_port( cpe:CPE ) ) )
  exit( 0 );

if( ! infos = get_app_full( cpe:CPE, port:port, exit_no_version:TRUE ) )
  exit( 0 );

version = infos["version"];
proto = infos["proto"];
location = infos["location"];

if( version_is_equal( version:version, test_version:"9.7.1" ) ||
    version_is_equal( version:version, test_version:"9.7.1p1" ) ) {
  report = report_fixed_ver( installed_version:version, fixed_version:"See advisory", install_path:location );
  security_message( data:report, port:port, proto:proto );
  exit( 0 );
}

exit( 99 );