Vulnerabilities > CVE-2019-7845 - Use After Free vulnerability in multiple products

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
adobe
redhat
CWE-416
nessus

Summary

Adobe Flash Player versions 32.0.0.192 and earlier, 32.0.0.192 and earlier, and 32.0.0.192 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution.

Vulnerable Configurations

Part Description Count
Application
Adobe
569
OS
Linux
1
OS
Apple
1
OS
Microsoft
3
OS
Google
1
OS
Redhat
3

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyWindows
    NASL idFLASH_PLAYER_APSB19-30.NASL
    descriptionThe version of Adobe Flash Player installed on the remote Windows host is equal or prior to version 32.0.0.192. It is therefore affected by the following vulnerabilities : - An unspecified flaw exists that allows an unspecified use-after-free to occur. An unauthenticated, remote attacker could exploit this to execute arbitrary code (CVE-2019-7845) - An unspecified flaw exists that allows same origin policy bypass leading to information disclosure. (CVE-2019-8075)
    last seen2020-06-01
    modified2020-06-02
    plugin id125815
    published2019-06-11
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/125815
    titleAdobe Flash Player <= 32.0.0.192 (APSB19-30)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(125815);
      script_version("1.5");
      script_cvs_date("Date: 2019/10/24  4:14:44");
    
      script_cve_id("CVE-2019-7845", "CVE-2019-8075");
      script_bugtraq_id(108716);
      script_xref(name:"IAVA", value:"2019-A-0321");
    
      script_name(english:"Adobe Flash Player <= 32.0.0.192 (APSB19-30)");
      script_summary(english:"Checks the version of the Flash Player.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote Windows host has a browser plugin installed that is
    affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The version of Adobe Flash Player installed on the remote Windows
    host is equal or prior to version 32.0.0.192. It is therefore
    affected by the following vulnerabilities :
    
      - An unspecified flaw exists that allows an unspecified
        use-after-free to occur. An unauthenticated, remote
        attacker could exploit this to execute arbitrary code
        (CVE-2019-7845)
    
      - An unspecified flaw exists that allows same origin
        policy bypass leading to information disclosure.
        (CVE-2019-8075)");
      script_set_attribute(attribute:"see_also", value:"https://helpx.adobe.com/security/products/flash-player/apsb19-30.html");
      # http://helpx.adobe.com/flash-player/kb/archived-flash-player-versions.html
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0cb17c10");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to Adobe Flash Player version 32.0.0.207 or later.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
      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:R/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-7845");
    
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/11");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/06/11");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/06/11");
    
      script_set_attribute(attribute:"plugin_type",value:"local");
      script_set_attribute(attribute:"cpe",value:"cpe:/a:adobe:flash_player");
      script_set_attribute(attribute:"stig_severity",value:"I");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Windows");
    
      script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("flash_player_installed.nasl");
      script_require_keys("SMB/Flash_Player/installed");
    
      exit(0);
    }
    
    include("global_settings.inc");
    include("misc_func.inc");
    
    get_kb_item_or_exit("SMB/Flash_Player/installed");
    
    # Identify vulnerable versions.
    info = "";
    variants = make_list(
      "Plugin",
      "ActiveX",
      "Chrome",
      "Chrome_Pepper"
    );
    
    # we're checking for versions less than *or equal to* the cutoff!
    foreach variant (variants)
    {
      vers = get_kb_list("SMB/Flash_Player/"+variant+"/Version/*");
      files = get_kb_list("SMB/Flash_Player/"+variant+"/File/*");
    
      if (isnull(vers) || isnull(files))
        continue;
    
      foreach key (keys(vers))
      {
        ver = vers[key];
        if (isnull(ver))
          continue;
    
        # <= 32.0.0.192
        if (ver_compare(ver:ver,fix:"32.0.0.192",strict:FALSE) <= 0)
        {
          num = key - ("SMB/Flash_Player/"+variant+"/Version/");
          file = files["SMB/Flash_Player/"+variant+"/File/"+num];
          if (variant == "Plugin")
          {
            info += '\n  Product           : Browser Plugin (for Firefox / Netscape / Opera)';
            fix = "32.0.0.207";
          }
          else if (variant == "ActiveX")
          {
            info += '\n  Product           : ActiveX control (for Internet Explorer)';
            fix = "32.0.0.207";
          }
          else if ("Chrome" >< variant)
          {
            info += '\n  Product           : Browser Plugin (for Google Chrome)';
            if (variant == "Chrome")
              fix = "Upgrade to a version of Google Chrome running Flash Player 32.0.0.207";
          }
          info += '\n  Path              : ' + file +
                  '\n  Installed version : ' + ver;
          if (variant == "Chrome_Pepper")
            info += '\n  Fixed version     : 32.0.0.207 (Chrome PepperFlash)';
          else if (!isnull(fix))
            info += '\n  Fixed version     : '+fix;
          info += '\n';
        }
      }
    }
    
    if (info)
    {
      port = get_kb_item("SMB/transport");
      if (!port) port = 445;
    
      security_report_v4(port:port, extra:info, severity:SECURITY_WARNING);
    }
    else
    {
      if (thorough_tests)
        exit(0, 'No vulnerable versions of Adobe Flash Player were found.');
      else
        exit(1, 'Google Chrome\'s built-in Flash Player may not have been detected because the \'Perform thorough tests\' setting was not enabled.');
    }
    
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_AB099D2C8C8C11E98BA76451062F0F7A.NASL
    descriptionAdobe reports : - This update resolves a use-after-free vulnerability that could lead to arbitrary code execution (CVE-2019-7845).
    last seen2020-06-01
    modified2020-06-02
    plugin id125839
    published2019-06-12
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/125839
    titleFreeBSD : Flash Player -- arbitrary code execution (ab099d2c-8c8c-11e9-8ba7-6451062f0f7a)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from the FreeBSD VuXML database :
    #
    # Copyright 2003-2020 Jacques Vidrine and contributors
    #
    # Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
    # HTML, PDF, PostScript, RTF and so forth) with or without modification,
    # are permitted provided that the following conditions are met:
    # 1. Redistributions of source code (VuXML) must retain the above
    #    copyright notice, this list of conditions and the following
    #    disclaimer as the first lines of this file unmodified.
    # 2. Redistributions in compiled form (transformed to other DTDs,
    #    published online in any format, converted to PDF, PostScript,
    #    RTF and other formats) must reproduce the above copyright
    #    notice, this list of conditions and the following disclaimer
    #    in the documentation and/or other materials provided with the
    #    distribution.
    # 
    # THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
    # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
    # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
    # OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
    # OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
    # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
    # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
    # OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
    # EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(125839);
      script_version("1.3");
      script_cvs_date("Date: 2020/01/10");
    
      script_cve_id("CVE-2019-7845");
    
      script_name(english:"FreeBSD : Flash Player -- arbitrary code execution (ab099d2c-8c8c-11e9-8ba7-6451062f0f7a)");
      script_summary(english:"Checks for updated package in pkg_info output");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote FreeBSD host is missing a security-related update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "Adobe reports :
    
    - This update resolves a use-after-free vulnerability that could lead
    to arbitrary code execution (CVE-2019-7845)."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://helpx.adobe.com/security/products/flash-player/apsb19-30.html"
      );
      # https://vuxml.freebsd.org/freebsd/ab099d2c-8c8c-11e9-8ba7-6451062f0f7a.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?beebb247"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected package.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
      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:R/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux-flashplayer");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2019/06/11");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/06/11");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/06/12");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"FreeBSD Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("freebsd_package.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
    if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    
    if (pkg_test(save_report:TRUE, pkg:"linux-flashplayer<32.0.0.207")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get());
      else security_warning(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201908-21.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201908-21 (Adobe Flash Player: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Adobe Flash Player. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could possibly execute arbitrary code with the privileges of the process or bypass security restrictions. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id127970
    published2019-08-20
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/127970
    titleGLSA-201908-21 : Adobe Flash Player: Multiple vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Gentoo Linux Security Advisory GLSA 201908-21.
    #
    # The advisory text is Copyright (C) 2001-2020 Gentoo Foundation, Inc.
    # and licensed under the Creative Commons - Attribution / Share Alike 
    # license. See http://creativecommons.org/licenses/by-sa/3.0/
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(127970);
      script_version("1.2");
      script_cvs_date("Date: 2020/01/02");
    
      script_cve_id("CVE-2019-7096", "CVE-2019-7108", "CVE-2019-7845");
      script_xref(name:"GLSA", value:"201908-21");
    
      script_name(english:"GLSA-201908-21 : Adobe Flash Player: Multiple vulnerabilities");
      script_summary(english:"Checks for updated package(s) in /var/db/pkg");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote Gentoo host is missing one or more security-related
    patches."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The remote host is affected by the vulnerability described in GLSA-201908-21
    (Adobe Flash Player: Multiple vulnerabilities)
    
        Multiple vulnerabilities have been discovered in Adobe Flash Player.
          Please review the CVE identifiers referenced below for details.
      
    Impact :
    
        A remote attacker could possibly execute arbitrary code with the
          privileges of the process or bypass security restrictions.
      
    Workaround :
    
        There is no known workaround at this time."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security.gentoo.org/glsa/201908-21"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "All Adobe Flash Player users should upgrade to the latest version:
          # emerge --sync
          # emerge --ask --oneshot --verbose
          '>=www-plugins/adobe-flash-32.0.0.207'"
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      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:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:adobe-flash");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/23");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/08/18");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/20");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Gentoo Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("qpkg.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
    if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    
    if (qpkg_check(package:"www-plugins/adobe-flash", unaffected:make_list("ge 32.0.0.207"), vulnerable:make_list("lt 32.0.0.207"))) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = qpkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Adobe Flash Player");
    }
    
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS19_JUN_FLASH.NASL
    descriptionThe remote Windows host is missing security update KB4503308. It is, therefore, affected by an arbitrary code execution vulnerability in Adobe Flash Player.
    last seen2020-06-01
    modified2020-06-02
    plugin id125827
    published2019-06-11
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/125827
    titleKB4503308: Security update for Adobe Flash Player (June 2019)
  • NASL familyMacOS X Local Security Checks
    NASL idMACOSX_FLASH_PLAYER_APSB19-30.NASL
    descriptionThe version of Adobe Flash Player installed on the remote macOS or Mac OS X host is equal or prior to version 32.0.0.192. It is therefore affected by the following vulnerabilities : - An unspecified flaw exists that allows an unspecified use-after-free to occur. An unauthenticated, remote attacker could exploit this to execute arbitrary code (CVE-2019-7845) - An unspecified flaw exists that allows same origin policy bypass leading to information disclosure. (CVE-2019-8075)
    last seen2020-06-01
    modified2020-06-02
    plugin id125814
    published2019-06-11
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/125814
    titleAdobe Flash Player for Mac <= 32.0.0.192 (APSB19-30)
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2019-1476.NASL
    descriptionAn update for flash-plugin is now available for Red Hat Enterprise Linux 6 Supplementary. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The flash-plugin package contains a Mozilla Firefox compatible Adobe Flash Player web browser plug-in. This update upgrades Flash Player to version 32.0.0.207. Security Fix(es) : * flash-plugin: Arbitrary Code Execution vulnerability (APSB19-30) (CVE-2019-7845) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
    last seen2020-06-01
    modified2020-06-02
    plugin id125939
    published2019-06-17
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/125939
    titleRHEL 6 : flash-plugin (RHSA-2019:1476)

Redhat

advisories
rhsa
idRHSA-2019:1476
rpmsflash-plugin-0:32.0.0.207-1.el6_10

The Hacker News

idTHN:C9C46E3C63DA812F6C22E297AB5F14C3
last seen2019-06-11
modified2019-06-11
published2019-06-11
reporterThe Hacker News
sourcehttps://thehackernews.com/2019/06/adobe-patch-june.html
titleAdobe Issues Critical Patches for ColdFusion, Flash Player, Campaign