Erlang/OTP (Erlang OTP) Buffer Read Overflow Vulnerability (Sep 2025) - Windows

# SPDX-FileCopyrightText: 2025 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:erlang:erlang%2fotp";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.119096");
  script_version("2025-09-12T05:38:45+0000");
  script_tag(name:"last_modification", value:"2025-09-12 05:38:45 +0000 (Fri, 12 Sep 2025)");
  script_tag(name:"creation_date", value:"2025-09-11 14:22:32 +0000 (Thu, 11 Sep 2025)");
  script_tag(name:"cvss_base", value:"9.4");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2025-09-09 15:27:39 +0000 (Tue, 09 Sep 2025)");
  script_cve_id("CVE-2025-58050");
  script_name("Erlang/OTP (Erlang OTP) Buffer Read Overflow Vulnerability (Sep 2025) - Windows");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2025 Greenbone AG");
  script_family("General");
  script_dependencies("gb_erlang_otp_ssh_banner_detect.nasl", "os_detection.nasl");
  script_mandatory_keys("erlang/otp/detected", "Host/runs_windows");

  script_xref(name:"URL", value:"https://github.com/erlang/otp/security/advisories/GHSA-f9x4-wvcc-vwcf");

  script_tag(name:"summary", value:"Erlang/OTP (Erlang OTP) is prone to a buffer read overflow
  vulnerability in the erts component.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"A heap-buffer-overflow read could happen if using the re module
  with a regular expression containing (*scs:...) syntax (Scan SubString) combined with (*ACCEPT)
  syntax.

  Example: re:run('abbb', '(a)(*scs:(1)a(*ACCEPT))bbb').");

  script_tag(name:"impact", value:"This vulnerability may potentially lead to information disclosure
  if the out-of-bounds data read affects the final match result in a way observable by the attacker.
  It could also potentially cause denial-of-service by crashing the Erlang runtime process.");

  script_tag(name:"affected", value:"Erlang/OTP (Erlang OTP) versions starting from 28.0 and prior
  to 28.0.3.");

  script_tag(name:"solution", value:"Update to version 28.0.3 or later.");

  script_tag(name:"qod_type", value:"remote_banner");
  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_version_and_location( cpe:CPE, port:port, exit_no_version:TRUE ) )
  exit( 0 );

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

if( version_in_range_exclusive( version:version, test_version_lo:"28.0", test_version_up:"28.0.3" ) ) {
  report = report_fixed_ver( installed_version:version, fixed_version:"28.0.3", install_path:location );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );