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             AUSCERT External Security Bulletin Redistribution

     Updates for Intel "ZombieLoad" microprocessor data leakage flaws
           (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, and
                         CVE-2019-11091) (SB10292)
                             12 September 2019


        AusCERT Security Bulletin Summary

Product:           McAfee products
Publisher:         McAfee
Operating System:  Virtualisation
                   Network Appliance
                   Mac OS
                   Linux variants
Impact/Access:     Access Privileged Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-11091 CVE-2018-12130 CVE-2018-12127

Reference:         ASB-2019.0173

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

McAfee Security Bulletin - Updates for Intel "ZombieLoad" microprocessor data
leakage flaws (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, and

Security Bulletins ID   : SB10292

Last Modified           : 9/10/2019


First Published: September 10, 2019
|Impact of       |Low - see the CVE Information section below.                |
|Vulnerability:  |                                                            |
|CVE Information:                                                            |
|                |        |CVSS |                                             |
|CVE IDs         |Severity|v3   |Affected Products                            |
|                |Rating  |Base |                                             |
|                |        |Score|                                             |
|CVE-2018-12126  |Medium  |6.5  |Advanced Threat Defense (ATD), Data Exchange |
|                |        |     |Layer (DXL), Data Loss Prevention Monitor    |
+----------------+--------+-----+(DLP Monitor), Data Loss Prevention Prevent  |
|CVE-2018-12127  |Medium  |6.5  |(DLP Prevent), McAfee Active Response (MAR), |
|                |        |     |McAfee Email Gateway (MEG), McAfee Linux     |
+----------------+--------+-----+Operating System (MLOS), McAfee Web Gateway  |
|CVE-2018-12130  |Medium  |6.2  |(MWG), Network Data Loss Prevention (Network |
|                |        |     |DLP), Network Security Manager (NSM) Linux,  |
+----------------+--------+-----+Network Security Platform (NSP), Network     |
|CVE-2019-11091  |Low     |3.8  |Threat Behavioral Analysis (NTBA), SIEM,     |
|                |        |     |Threat Intelligence Exchange (TIE) Server    |
|Highest CVSS v3 |6.5                                                         |
|Base Score:    |                                                            |
|Recommendations:|Deploy the fixes as they are made available.                |
|Security        |                                                            |
|Bulletin        |None                                                        |
|Replacement:    |                                                            |
|Affected        |See the McAfee Product Vulnerability Status table below.    |
|Software:       |                                                            |
|Location of     |                                                            |
|updated         |http://www.mcafee.com/us/downloads/downloads.aspx           |
|software:       |                                                            |

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Article contents:

  o Vulnerability Description
  o McAfee Product Vulnerability Status
  o Remediation
  o Frequently Asked Questions (FAQs)
  o Resources
  o Disclaimer

Vulnerability Description
Scope of this Security Bulletin:

  o Any product that McAfee offers that comes bundled with an operating system,
    either on hardware or as a virtual machine, will be covered in this
    Security Bulletin.
  o Where McAfee software is installed on an operating system provided by the
    customer, we will only list the product here if we are releasing a fix. By
    default, these products will be protected by the Intel and operating system
    vendor provided updates.

McAfee products that ship as appliances or virtual images are vulnerable to
these CVEs as they run on affected Intel CPUs. These systems are 'closed' as
they do not allow multiple users to log on and execute programs of their
choice. As such the likelihood of being exploited is considered low.

As with previous related CVEs (Spectre/Meltdown variants), McAfee plans to
address these vulnerabilities as part of the regular update cycles for the
impacted products. These vulnerabilities have been given the code name

For McAfee virtual appliances, including instances running in the cloud, ensure
that you have applied the vendor fixes to the virtual environment they are
running in.

 1. CVE-2019-11091
    Uncacheable memory on some microprocessors utilizing speculative execution
    can allow an authenticated user to potentially enable information
    disclosure via a side channel with local access.
 2. CVE-2018-12126
    Modern Intel ^ microprocessors implement hardware-level micro-optimizations
    to improve the performance of writing data back to CPU caches. The write
    operation is split into STA (STore Address) and STD (STore Data) sub
    operations. These sub operations allow the processor to hand-off address
    generation logic into these sub operations for optimized writes. Both of
    these sub operations write to a shared distributed processor structure
    called the 'processor store buffer'. As a result, an unprivileged attacker
    could use this flaw to read private data resident within the CPU's
    processor store buffer.
 3. CVE-2018-12130
    A flaw was found in the implementation of the "fill buffer," a mechanism
    used by modern CPUs when a cache-miss is made on L1 CPU cache. If an
    attacker can generate a load operation that would create a page fault, the
    execution continues speculatively with incorrect data from the fill buffer
    while the data is fetched from higher-level caches. This response time can
    be measured to infer data in the fill buffer.
 4. CVE-2018-12127
    Microprocessors use a 'load port' subcomponent to perform load operations
    from memory or IO. During a load operation, the load port receives data
    from the memory or IO subsystem and then provides the data to the CPU
    registers and operations in the CPU's pipelines. Stale load operations
    results are stored in the 'load port' table until overwritten by newer
    operations. Certain load-port operations triggered by an attacker can be
    used to reveal data about previous stale requests leaking data back to the
    attacker via a timing side-channel.

McAfee Product Vulnerability Status
The table below shows the status of all currently supported products where
McAfee provides the operating system. The table will be populated with versions
and dates released as they are made available.
|Product Status and Remediation Availability                                    |
|Product   |Version |CVE-2018-12126|CVE-2018-12127|CVE-2018-12130|CVE-2019-11091|
|Vulnerable and Updated                                                         |
|MLOS      |3       |Available from our public repository: http://              |
|          |        |mcafeelinux.org/mlos/mlosrepo/3/updates/                   |
|MLOS      |2       |Available from our public repository: http://              |
|          |        |mcafeelinux.org/mlos/mlosrepo/2/updates/                   |
|TIE Server|2.0.x,  |                                                           |
|(includes |2.1.x,  |Update to TIE Server 2.3.1 Hotfix 2 (see the Remediation   |
|MAR 2.4)  |2.2.x,  |table) or manually apply the packages using KB90843        |
|          |2.3.x   |                                                           |
|Not Vulnerable                                                                 |
|NSP       |All     |Not Vulnerable - All CVEs                                  |
|NTBA      |All     |Not Vulnerable - All CVEs                                  |
|Vulnerable and Not Exploitable - Update Planned                                |
|ATD       |4.6.x   |Vulnerable and Not Exploitable - Update Planned - All CVEs |
|DLP       |11.x    |Vulnerable and Not Exploitable - Update Planned - All CVEs |
|Monitor   |        |                                                           |
|DLP       |10.x,   |Vulnerable and Not Exploitable - Update Planned - All CVEs |
|Prevent   |11.x    |                                                           |
|DXL Server|4.1.x,  |Vulnerable and Not Exploitable - Update Planned - All CVEs |
|          |5.0.x   |                                                           |
|          |        |                                                           |
|MAR       |2.2.x,  |                                                           |
|(See TIE  |2.3.x   |Vulnerable and Not Exploitable - Update Planned - All CVEs |
|for MAR   |        |                                                           |
|2.4)      |        |                                                           |
|MEG       |7.6.40x |Vulnerable and Not Exploitable - Update Planned - All CVEs |
|          |7.7.2.x,|                                                           |
|MWG       |7.8.2.x,|Vulnerable and Not Exploitable - Update Planned - All CVEs |
|          |8.1.x   |                                                           |
|NSM Linux |9.1.x   |Vulnerable and Not Exploitable - Update Planned - All CVEs |
|SIEM      |        |                                                           |
|Enterprise|10.x,   |Vulnerable and Not Exploitable - Update Planned - All CVEs |
|Security  |11.x    |                                                           |
|Manager   |        |                                                           |
|Vulnerable and Not Exploitable - Will not be Updated                           |
|Network   |        |Vulnerable and Not Exploitable - Will not be Updated - All |
|DLP       |9.3     |CVEs.                                                      |
|          |        |9.3 reaches End of Life in October 2019. Ugrade to 11.x.   |

NOTE: After applying the update to your appliances, physical or virtual, they
must be rebooted to fully apply the fix.

For a description of each product, see: https://www.mcafee.com/enterprise/en-us
/products/a-z.html .
Install the versions listed below when the releases are made available. McAfee
recommends that you install the available fixes. Otherwise, apply any available

To remediate this issue, go to the Product Downloads site, and download the
applicable product update/hotfix files:
|Product|Versions|Type  |Earliest Fixed Version|Release Date      |
|TIE    |2.3.1   |Hotfix|2.3.1 Hotfix 2        |September 10, 2019|

Download and Installation Instructions
See KB56057 for instructions on how to download McAfee products, documentation,
updates, and hotfixes. Review the Release Notes and the Installation Guide for
instructions on how to install these updates. You can download these documents
from the Documentation tab.
Frequently Asked Questions (FAQs)
How do I know if my McAfee product is vulnerable or not
For Endpoint products:
Use the following instructions for endpoint or client-based products:

 1. Right-click on the McAfee tray shield icon on the Windows taskbar.
 2. Select Open Console.
 3. In the console, select Action Menu .
 4. In the Action Menu, select Product Details . The product version displays.

For ePO:
Use the following instructions for ePO:
Check the version and build of ePO that is installed. For information about how
to check the version, see: KB52634 .

For Appliances:
Use the following instructions for Appliance-based products:

 1. Open the Administrator's User Interface (UI).
 2. Click the About link. The product version displays.

Where can I find a list of all Security Bulletins
All Security Bulletins are published on our external PSIRT website at http://
www.mcafee.com/us/threat-center/product-security-bulletins.aspx > Security
Bulletins. Security Bulletins are retired (removed) once a product is both End
of Sale and End of Support (End of Life).

How do I report a product vulnerability to McAfee
If you have information about a security issue or vulnerability with a McAfee
product, visit the McAfee PSIRT website for instructions at http://
www.mcafee.com/us/threat-center/product-security-bulletins.aspx > Report a
Security Vulnerability.

How does McAfee respond to this and any other reported security flaws
Our key priority is the security of our customers. If a vulnerability is found
within any McAfee software or services, we work closely with the relevant
security software development team to ensure the rapid and effective
development of a fix and communication plan.

McAfee only publishes Security Bulletins if they include something actionable
such as a workaround, mitigation, version update, or hotfix. Otherwise, we
would simply be informing the hacker community that our products are a target,
putting our customers at greater risk. For products that are updated
automatically, a non-actionable Security Bulletin might be published to
acknowledge the discoverer.

View our PSIRT policy on the McAfee PSIRT website at http://www.mcafee.com/us/
threat-center/product-security-bulletins.aspx > About PSIRT.
To contact Technical Support, log on to the ServicePortal and go to the Create
a Service Request page at https://support.mcafee.com/ServicePortal/faces/
serviceRequests/createSR :

  o If you are a registered user, type your User ID and Password, and then
    click Log In .
  o If you are not a registered user, click Register and complete the required
    fields. Your password and logon instructions will be emailed to you.

The information provided in this Security Bulletin is provided as is without
warranty of any kind. McAfee disclaims all warranties, either express or
implied, including the warranties of merchantability and fitness for a
particular purpose. In no event shall McAfee or its suppliers be liable for any
damages whatsoever including direct, indirect, incidental, consequential, loss
of business profits or special damages, even if McAfee or its suppliers have
been advised of the possibility of such damages. Some states do not allow the
exclusion or limitation of liability for consequential or incidental damages so
the preceding limitation may not apply.

Any future product release dates mentioned in this Security Bulletin are
intended to outline our general product direction, and they should not be
relied on in making a purchasing decision. The product release dates are for
information purposes only, and may not be incorporated into any contract. The
product release dates are not a commitment, promise, or legal obligation to
deliver any material, code, or functionality. The development, release, and
timing of any features or functionality described for our products remains at
our sole discretion and may be changed or canceled at any time

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