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AUSCERT External Security Bulletin Redistribution
ESB-2018.0384
Critical: flash-plugin security update
8 February 2018
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AusCERT Security Bulletin Summary
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Product: flash-plugin
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 6
Red Hat Enterprise Linux WS/Desktop 6
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2018-4878 CVE-2018-4877
Reference: ESB-2018.0326.2
Original Bulletin:
https://access.redhat.com/errata/RHSA-2018:0285
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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
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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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