Pegasus Mail POP3 Response Buffer Overflow Vulnerability

# SPDX-FileCopyrightText: 2009 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.800970");
  script_version("2023-07-27T05:05:08+0000");
  script_tag(name:"last_modification", value:"2023-07-27 05:05:08 +0000 (Thu, 27 Jul 2023)");
  script_tag(name:"creation_date", value:"2009-11-05 12:25:48 +0100 (Thu, 05 Nov 2009)");
  script_tag(name:"cvss_base", value:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_cve_id("CVE-2009-3838");
  script_name("Pegasus Mail POP3 Response Buffer Overflow Vulnerability");
  script_xref(name:"URL", value:"http://secunia.com/advisories/37134");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/36797");
  script_xref(name:"URL", value:"http://www.vupen.com/english/advisories/2009/3026");
  script_xref(name:"URL", value:"http://securitytracker.com/alerts/2009/Oct/1023075.html");

  script_tag(name:"qod_type", value:"executable_version");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 Greenbone AG");
  script_family("Buffer overflow");
  script_dependencies("gb_pegasus_mail_detect.nasl");
  script_mandatory_keys("Pegasus/Mail/Ver");
  script_tag(name:"impact", value:"Successful exploitation will allow attackers to execute arbitrary
code or cause the application to crash by sending overly long error responses
from a remote POP3 server to the affected mail client.");
  script_tag(name:"affected", value:"Pegasus Mail 4.51 and prior.");
  script_tag(name:"insight", value:"A stack based buffer overflow error occus due to improper bounds
checking when processing POP3 responses.");
  script_tag(name:"solution", value:"Upgrade to version 4.51 or higher.");
  script_tag(name:"summary", value:"Pegasus Mail is prone to stack-based Buffer Overflow vulnerability.");

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

  script_xref(name:"URL", value:"http://www.pmail.com/downloads_s3_t.htm");
  exit(0);
}

include("version_func.inc");

pmailVer = get_kb_item("Pegasus/Mail/Ver");
if(isnull(pmailVer)){
  exit(0);
}

if(version_is_less_equal(version:pmailVer, test_version:"4.5.1.0")){
  report = report_fixed_ver(installed_version:pmailVer, vulnerable_range:"Less than or equal to 4.5.1.0");
  security_message(port: 0, data: report);
}