Apple Mac OS X Security Update (HT212220)

# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.0.817973");
  script_version("2026-06-11T07:15:11+0000");
  script_cve_id("CVE-2021-1844");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2026-06-11 07:15:11 +0000 (Thu, 11 Jun 2026)");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-05-31 00:15:00 +0000 (Mon, 31 May 2021)");
  script_tag(name:"creation_date", value:"2021-03-12 15:19:26 +0530 (Fri, 12 Mar 2021)");
  script_name("Apple Mac OS X Security Update (HT212220)");

  script_tag(name:"summary", value:"Apple Mac OS X is prone to a memory corruption vulnerability.");

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

  script_tag(name:"insight", value:"The flaw is due to a memory corruption error
  related to improper validation.");

  script_tag(name:"impact", value:"Successful exploitation will allow attackers
  to conduct arbitrary code execution.");

  script_tag(name:"affected", value:"Apple Mac OS X Big Sur versions 11.x before
  11.2.3.");

  script_tag(name:"solution", value:"Upgrade to Apple Mac OS X Big Sur version
  11.2.3 or later. Please see the references for more information.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");
  script_xref(name:"URL", value:"https://support.apple.com/en-us/HT212220");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("Mac OS X Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/osx_name", "ssh/login/osx_version");
  exit(0);
}


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

if(!osName = get_kb_item("ssh/login/osx_name"))
  exit(0);

osVer = get_kb_item("ssh/login/osx_version");
if(!osVer || osVer !~ "^11\." || "Mac OS X" >!< osName){
  exit(0);
}

if(version_in_range(version:osVer, test_version:"11.0", test_version2:"11.2.2"))
{
  report = report_fixed_ver(installed_version:osVer, fixed_version:"11.2.3");
  security_message(data:report);
  exit(0);
}
exit(99);