MySQL Empty Bit-String Literal Denial of Service Vulnerability

# SPDX-FileCopyrightText: 2008 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:mysql:mysql";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.900221");
  script_version("2025-09-09T05:38:49+0000");
  script_tag(name:"last_modification", value:"2025-09-09 05:38:49 +0000 (Tue, 09 Sep 2025)");
  script_tag(name:"creation_date", value:"2008-09-25 09:10:39 +0200 (Thu, 25 Sep 2008)");
  script_cve_id("CVE-2008-3963");
  script_copyright("Copyright (C) 2008 Greenbone AG");
  script_tag(name:"cvss_base", value:"4.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:N/A:P");
  script_category(ACT_GATHER_INFO);
  script_family("Denial of Service");
  script_name("MySQL Empty Bit-String Literal Denial of Service Vulnerability");

  script_dependencies("gb_mysql_mariadb_remote_detect.nasl");
  script_mandatory_keys("oracle/mysql/detected");

  script_xref(name:"URL", value:"http://secunia.com/advisories/31769/");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/31081");
  script_xref(name:"URL", value:"http://bugs.mysql.com/bug.php?id=35658");
  script_xref(name:"URL", value:"http://dev.mysql.com/doc/refman/5.1/en/news-5-1-26.html");
  script_tag(name:"summary", value:"MySQL is prone to a denial of service (DoS) vulnerability.");
  script_tag(name:"insight", value:"Issue is due to error while processing an empty bit string literal via
  a specially crafted SQL statement.");
  script_tag(name:"affected", value:"MySQL versions prior to 5.0.x - 5.0.66,
  5.1.x - 5.1.26, and 6.0.x - 6.0.5 on all running platform.");
  script_tag(name:"solution", value:"Update to version 5.0.66 or 5.1.26 or 6.0.6 or later.");
  script_tag(name:"impact", value:"Successful exploitation by remote attackers could cause denying
  access to legitimate users.");

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

  exit(0);
}

include("host_details.inc");

if(!sqlPort = get_app_port(cpe:CPE))
  exit(0);

if(!mysqlVer = get_app_version(cpe:CPE, port:sqlPort))
  exit(0);

if(ereg(pattern:"^(5\.0(\.[0-5]?[0-9]|\.6[0-5])?|5\.1(\.[01]?[0-9]|" +
                "\.2[0-5])?|6\.0(\.[0-5])?)[^.0-9]", string:mysqlVer)){
  security_message(port:sqlPort);
}