OpenSSL Multiple Vulnerabilities -01 (Mar 2016) - Linux

# SPDX-FileCopyrightText: 2016 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:openssl:openssl";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.807098");
  script_version("2024-02-09T05:06:25+0000");
  script_cve_id("CVE-2016-0705", "CVE-2016-0798", "CVE-2016-0797", "CVE-2016-0799",
                "CVE-2016-0702", "CVE-2016-2842");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"last_modification", value:"2024-02-09 05:06:25 +0000 (Fri, 09 Feb 2024)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-02-20 16:59:00 +0000 (Wed, 20 Feb 2019)");
  script_tag(name:"creation_date", value:"2016-03-03 12:23:09 +0530 (Thu, 03 Mar 2016)");
  script_tag(name:"qod_type", value:"remote_banner_unreliable");
  script_name("OpenSSL Multiple Vulnerabilities -01 (Mar 2016) - Linux");

  script_tag(name:"summary", value:"OpenSSL is prone to multiple vulnerabilities.");

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

  script_tag(name:"insight", value:"Multiple flaws are due to:

  - A double-free vulnerability in DSA code.

  - A memory leak vulnerability in SRP database lookups using the
    'SRP_VBASE_get_by_user' function.

  - An integer overflow flaw in some 'BIGNUM' functions, leading to a NULL
    pointer dereference or a heap-based memory corruption.

  - An improper processing of format string in the 'BIO_*printf' functions.

  - A side channel attack on modular exponentiation.

  - The 'doapr_outch' function in 'crypto/bio/b_print.c' script does not verify
    the success of a certain memory allocation");

  script_tag(name:"impact", value:"Successful exploitation will allow a remote
  attacker to cause denial of service, to cause memory leak, to execute
  arbitrary code and to bypass seurity restrictions and some unspecified other
  impact.");

  script_tag(name:"affected", value:"OpenSSL versions 1.0.1 before 1.0.1s
  and 1.0.2 before 1.0.2g.");

  script_tag(name:"solution", value:"Upgrade to OpenSSL 1.0.1s or 1.0.2g or
  later.");

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

  script_xref(name:"URL", value:"https://www.openssl.org/news/secadv/20160301.txt");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("General");
  script_dependencies("gb_openssl_consolidation.nasl", "os_detection.nasl");
  script_mandatory_keys("openssl/detected", "Host/runs_unixoide");

  exit(0);
}

include("host_details.inc");
include("version_func.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);

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

if(vers =~ "^1\.0\.1") {
  if(version_is_less(version:vers, test_version:"1.0.1s")) {
    fix = "1.0.1s";
    VULN = TRUE;
  }
}
else if(vers =~ "^1\.0\.2") {
  if(version_is_less(version:vers, test_version:"1.0.2g")) {
    fix = "1.0.2g";
    VULN = TRUE;
  }
}

if(VULN) {
  report = report_fixed_ver(installed_version:vers, fixed_version:fix, install_path:path);
  security_message(port:port, data:report);
  exit(0);
}

exit(99);