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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Critical: flash-plugin security update
Advisory ID:       RHSA-2018:0285-01
Product:           Red Hat Enterprise Linux Supplementary
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:0285
Issue date:        2018-02-07
CVE Names:         CVE-2018-4877 CVE-2018-4878 
=====================================================================

1. Summary:

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop Supplementary (v. 6) - i386, x86_64
Red Hat Enterprise Linux Server Supplementary (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Supplementary (v. 6) - i386, x86_64

3. Description:

The flash-plugin package contains a Mozilla Firefox compatible Adobe Flash
Player web browser plug-in.

This update upgrades Flash Player to version 28.0.0.161.

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-2018-4877, CVE-2018-4878)

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1541981 - CVE-2018-4877 CVE-2018-4878 flash-plugin: use-after-free causing remote code execution (APSB18-03)

6. Package List:

Red Hat Enterprise Linux Desktop Supplementary (v. 6):

i386:
flash-plugin-28.0.0.161-1.el6_9.i686.rpm

x86_64:
flash-plugin-28.0.0.161-1.el6_9.i686.rpm

Red Hat Enterprise Linux Server Supplementary (v. 6):

i386:
flash-plugin-28.0.0.161-1.el6_9.i686.rpm

x86_64:
flash-plugin-28.0.0.161-1.el6_9.i686.rpm

Red Hat Enterprise Linux Workstation Supplementary (v. 6):

i386:
flash-plugin-28.0.0.161-1.el6_9.i686.rpm

x86_64:
flash-plugin-28.0.0.161-1.el6_9.i686.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-4877
https://access.redhat.com/security/cve/CVE-2018-4878
https://access.redhat.com/security/updates/classification/#critical
https://helpx.adobe.com/security/products/flash-player/apsb18-03.html

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
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