Mozilla Firefox 'GIF' File DoS Vulnerability (Nov 2009) - Linux

# SPDX-FileCopyrightText: 2009 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("1.3.6.1.4.1.25623.1.0.900895");
  script_version("2024-02-08T05:05:59+0000");
  script_tag(name:"last_modification", value:"2024-02-08 05:05:59 +0000 (Thu, 08 Feb 2024)");
  script_tag(name:"creation_date", value:"2009-11-20 06:52:52 +0100 (Fri, 20 Nov 2009)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_cve_id("CVE-2009-3978");
  script_name("Mozilla Firefox 'GIF' File DoS Vulnerability (Nov 2009) - Linux");
  script_xref(name:"URL", value:"https://bugzilla.mozilla.org/show_bug.cgi?id=525326");
  script_xref(name:"URL", value:"https://wiki.mozilla.org/Releases/Firefox_3.5.5/Test_Plan");
  script_xref(name:"URL", value:"http://hg.mozilla.org/releases/mozilla-1.9.1/rev/edf189567edc");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 Greenbone AG");
  script_family("Denial of Service");
  script_dependencies("gb_firefox_detect_lin.nasl");
  script_mandatory_keys("Firefox/Linux/Ver");
  script_tag(name:"impact", value:"Successful exploitation could allows remote attacker to cause a vulnerable
  application to crash.");
  script_tag(name:"affected", value:"Mozilla Firefox version prior to 3.5.5 on Linux.");
  script_tag(name:"insight", value:"A NULL pointer dereference error in 'nsGIFDecoder2::GifWrite' function in
  'decoders/gif/nsGIFDecoder2.cpp' in libpr0n, which can be exploited to cause
  application crash via an animated 'GIF' file with a large image size.");
  script_tag(name:"solution", value:"Upgrade to Firefox version 3.5.5 or later.");
  script_tag(name:"summary", value:"Firefox browser is prone to Denial of Service vulnerabilities.");
  script_tag(name:"qod_type", value:"executable_version_unreliable");
  script_tag(name:"solution_type", value:"VendorFix");
  exit(0);
}

include("version_func.inc");

ffVer = get_kb_item("Firefox/Linux/Ver");
if(!ffVer)
  exit(0);

if(version_is_less(version:ffVer, test_version:"3.5.5")){
  report = report_fixed_ver(installed_version:ffVer, fixed_version:"3.5.5");
  security_message(port: 0, data: report);
}