MySQL 5.6.x < 5.6.20 client.c mysql_prune_stmt_list() Function DoS (April 2017 CPU)

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(99511);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/03");

  script_cve_id("CVE-2017-3302");
  script_bugtraq_id(96162);

  script_name(english:"MySQL 5.6.x < 5.6.20 client.c mysql_prune_stmt_list() Function DoS (April 2017 CPU)");
  script_summary(english:"Checks the version of MySQL server.");

  script_set_attribute(attribute:"synopsis", value:
"The remote database server is affected by a denial of service
vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of MySQL running on the remote host is 5.6.x prior to
5.6.20. It is, therefore, affected by a use-after-free error in the
mysql_prune_stmt_list() function in client.c, that allows an
authenticated, remote attacker to cause a denial of service condition.

Note that Nessus has not tested for this issue but has instead relied
only on the application's self-reported version number.");
  # https://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html#AppendixMSQL
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d679be85");
  # https://support.oracle.com/rs?type=doc&id=2244179.1
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f5369edb");
  # https://www.oracle.com/ocom/groups/public/@otn/documents/webcontent/3681811.xml
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?eb4db3c7");
  script_set_attribute(attribute:"see_also", value:"https://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-20.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to MySQL version 5.6.20 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  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-2017-3302");

  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:"2011/12/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/07/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/20");

  script_set_attribute(attribute:"agent", value:"unix");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:oracle:mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:mysql");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled");
  script_require_ports("Host/RedHat/release", "Host/AmazonLinux/release", "Host/SuSE/release", "Host/CentOS/release");

  exit(0);
}

include("mysql_version.inc");

fix_version = "5.6.20";
exists_version = "5.6";

mysql_check_rpms(mysql_packages:default_mysql_rpm_list_server_only, fix_ver:fix_version, exists_ver:exists_version, rhel_os_list:default_mysql_rhel_os_list, centos_os_list:default_mysql_centos_os_list, suse_os_list:default_mysql_suse_os_list, ala_os_list:default_mysql_ala_os_list, severity:SECURITY_WARNING);