Mozilla Firefox Security Advisory (MFSA2012-52) - Linux

# Copyright (C) 2021 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

CPE = "cpe:/a:mozilla:firefox";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.2.1.2012.52");
  script_cve_id("CVE-2012-1962");
  script_tag(name:"creation_date", value:"2021-11-11 09:42:47 +0000 (Thu, 11 Nov 2021)");
  script_version("2021-11-15T10:21:31+0000");
  script_tag(name:"last_modification", value:"2021-11-15 10:21:31 +0000 (Mon, 15 Nov 2021)");
  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_name("Mozilla Firefox Security Advisory (MFSA2012-52) - Linux");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
  script_family("General");
  script_dependencies("gb_firefox_detect_lin.nasl");
  script_mandatory_keys("mozilla/firefox/linux/detected");

  script_xref(name:"Advisory-ID", value:"MFSA2012-52");
  script_xref(name:"URL", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2012-52/");
  script_xref(name:"URL", value:"https://bugzilla.mozilla.org/show_bug.cgi?id=764296");

  script_tag(name:"summary", value:"This host is missing a security update for Mozilla Firefox.");

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

  script_tag(name:"insight", value:"JSDependentString::undepend string conversion results in memory corruption
Security researcher Bill Keese reported a memory corruption.
This is caused by JSDependentString::undepend changing a dependent string into a
fixed string when there are additional dependent strings relying on the same
base. When the undepend occurs during conversion, the base data is freed,
leaving other dependent strings with dangling pointers. This can lead to a
potentially exploitable crash.");

  script_tag(name:"affected", value:"Firefox version(s) below 14.");

  script_tag(name:"solution", value:"The vendor has released an update. Please see the reference(s) for more information.");

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

  exit(0);
}

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

if (!infos = get_app_version_and_location(cpe: CPE, exit_no_version: TRUE))
  exit(0);

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

if (version_is_less(version: version, test_version: "14")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "14", install_path: location);
  security_message(port: 0, data: report);
  exit(0);
}

exit(99);