Curl 7.44.0 < 8.7.0 HTTP/2 Push Headers Memory-leak (CVE-2024-2398)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(192704);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/19");

  script_cve_id("CVE-2024-2398");
  script_xref(name:"IAVA", value:"2024-A-0185");

  script_name(english:"Curl 7.44.0 < 8.7.0 HTTP/2 Push Headers Memory-leak (CVE-2024-2398)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host has a program that is affected by a memory-leak vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Curl installed on the remote host is between 7.44.0 and prior to 8.7.0. It is, therefore, affected by a
memory-leak vulnerability. When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of 
received headers for the push surpasses the maximum allowed limit (1000), libcurl aborts the server push. When 
aborting, libcurl inadvertently does not free all the previously allocated headers and instead leaks the memory.
Further, this error condition fails silently and is therefore not easily detected by an application.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://curl.se/docs/CVE-2024-2398.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade Curl to version 8.7.0 or later");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  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:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-2398");

  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:"2024/03/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/03/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/03/29");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:haxx:curl");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("curl_win_installed.nbin", "curl_nix_installed.nbin");
  script_require_keys("installed_sw/Curl");

  exit(0);
}

include('vcf.inc');

var win_local;
if (!empty_or_null(get_kb_item('SMB/Registry/Enumerated')))
  win_local = TRUE;
else
  win_local = FALSE;

var app_info = vcf::get_app_info(app:'Curl', win_local:win_local);

vcf::check_all_backporting(app_info:app_info);

var constraints = [ 
  {'min_version': '7.44.0', 'fixed_version': '8.7.0'} 
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);