An 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 26.0.0.126.

Security Fix(es) :

* This update fixes multiple vulnerabilities in Adobe Flash Player.
These vulnerabilities, detailed in the Adobe Security Bulletin listed in the References section, could allow an attacker to create a specially crafted SWF file that would cause flash-plugin to crash, execute arbitrary code, or disclose sensitive information when the victim loaded a page containing the malicious SWF content.
(CVE-2017-3075, CVE-2017-3076, CVE-2017-3077, CVE-2017-3078, CVE-2017-3079, CVE-2017-3081, CVE-2017-3082, CVE-2017-3083, CVE-2017-3084)

Adobe reports :

- These updates resolve use-after-free vulnerabilities that could lead to code execution (CVE-2017-3075, CVE-2017-3081, CVE-2017-3083, CVE-2017-3084).

- These updates resolve memory corruption vulnerabilities that could lead to code execution (CVE-2017-3076, CVE-2017-3077, CVE-2017-3078, CVE-2017-3079, CVE-2017-3082).

The remote host is affected by the vulnerability described in GLSA-201707-15 (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.

The version of Adobe Flash Player installed on the remote Windows host is equal or prior to version 25.0.0.171. It is, therefore, affected by multiple vulnerabilities :

  - Multiple use-after-free errors exist that allow an     unauthenticated, remote attacker to execute arbitrary     code. (CVE-2017-3075, CVE-2017-3081, CVE-2017-3083,     CVE-2017-3084)

  - Multiple memory corruption issues exist that allow an     unauthenticated, remote attacker to execute arbitrary     code. (CVE-2017-3076, CVE-2017-3077, CVE-2017-3078,     CVE-2017-3079, CVE-2017-3082)

The version of Adobe Flash Player installed on the remote macOS or Mac OS X host is equal or prior to version 25.0.0.171. It is, therefore, affected by multiple vulnerabilities :

  - Multiple use-after-free errors exist that allow an     unauthenticated, remote attacker to execute arbitrary     code. (CVE-2017-3075, CVE-2017-3081, CVE-2017-3083,     CVE-2017-3084)

  - Multiple memory corruption issues exist that allow an     unauthenticated, remote attacker to execute arbitrary     code. (CVE-2017-3076, CVE-2017-3077, CVE-2017-3078,     CVE-2017-3079, CVE-2017-3082)

The remote Windows host is missing security update KB4022730. It is, therefore, affected by multiple vulnerabilities :

  - Multiple use-after-free errors exist that allow an     unauthenticated, remote attacker to execute arbitrary     code. (CVE-2017-3075, CVE-2017-3081, CVE-2017-3083,     CVE-2017-3084)

  - Multiple memory corruption issues exist that allow an     unauthenticated, remote attacker to execute arbitrary     code. (CVE-2017-3076, CVE-2017-3077, CVE-2017-3078,     CVE-2017-3079, CVE-2017-3082)

Versions of Adobe Flash Player prior to 26.0.0.126 are unpatched, and therefore affected by the following RCE vulnerabilities :

 - A use-after-free error exists in the XML Load method. The issue is triggered when handling XML objects. With a specially crafted file, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code. (CVE-2017-3075)
 - A flaw exists that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and cause a denial of service or potentially execute arbitrary code. (CVE-2017-3076, CVE-2017-3077, CVE-2017-3078, CVE-2017-3079)
 - A use-after-free error exists that may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code. No further details have been provided. (CVE-2017-3081)
 - A flaw exists that is triggered as LocaleID determinePreferredLocales metadata objects are not properly validated. This may allow a context-dependent attacker to corrupt memory and cause a denial of service or potentially execute arbitrary code. (CVE-2017-3082)
 - A use-after-free error exists during profile object handling. With a specially crafted file, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code. (CVE-2017-3083)
 - A use-after-free error exists during the cloning of AuditudeSettings objects. With a specially crafted file, a context-dependent attacker can dereference already freed memory and potentially execute arbitrary code. (CVE-2017-3084)

ID	Name	Product	Family	Published	Updated	Severity
100778	RHEL 6 : flash-plugin (RHSA-2017:1439)	Nessus	Red Hat Local Security Checks	6/14/2017	10/24/2019	critical
100829	FreeBSD : Flash Player -- multiple vulnerabilities (cd944b3f-51f6-11e7-b7b2-001c25e46b1d)	Nessus	FreeBSD Local Security Checks	6/16/2017	1/4/2021	critical
101924	GLSA-201707-15 : Adobe Flash Player: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	7/24/2017	1/11/2021	critical
100756	Adobe Flash Player <= 25.0.0.171 Multiple Vulnerabilities (APSB17-17)	Nessus	Windows	6/13/2017	4/11/2022	critical
100757	Adobe Flash Player for Mac <= 25.0.0.171 Multiple Vulnerabilities (APSB17-17)	Nessus	MacOS X Local Security Checks	6/13/2017	11/13/2019	critical
100766	KB4022730: Security update for Adobe Flash Player (June 2017)	Nessus	Windows : Microsoft Bulletins	6/13/2017	11/13/2019	critical
700144	Flash Player < 26.0.0.126 Multiple RCE (APSB17-17)	Nessus Network Monitor	Web Clients	6/21/2017	3/6/2019	high

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