First Published: February 11, 2020
 

Impact of Vulnerability:	Low – see the description section below.
CVE ID:	CVE-2019-11135
Severity Rating:	Medium
CVSS v3 Base/Temporal Scores:	6.5
Recommendations:	Deploy the fixes as they are made available.
Security Bulletin Replacement:	None
Affected Software:	See the McAfee Product Vulnerability Status table below for details. Advanced Threat Defense (ATD), Data Exchange Layer (DXL), McAfee Active Response (MAR), McAfee Email Gateway (MEG), McAfee Linux Operating System (MLOS), McAfee Web Gateway (MWG), Data Loss Prevention (DLP) Monitor and Prevent, Network Security Manager (NSM) Linux, Network Security Platform (NSP), Network Threat Behavioral Analysis (NTBA), SIEM, Threat Intelligence Exchange (TIE)
Location of updated software:	http://www.mcafee.com/us/downloads/downloads.aspx

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Article contents:

• Vulnerability Description
• McAfee Product Vulnerability Status
• Remediation
• Product Specific Notes
• Frequently Asked Questions (FAQs)
• Resources
• Disclaimer

Vulnerability Description
Scope of this Security Bulletin:

• Any product that McAfee offers that comes bundled with an operating system, either on hardware or as a virtual machine.  
• 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 are protected by the Intel and operating system vendor provided updates.

McAfee products that ship as appliances or virtual images are vulnerable to this CVE 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 "ZombieLoad v2".

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

CVE-2019-11135
TSX Asynchronous Abort condition on some CPUs utilizing speculative execution might allow an authenticated user to potentially enable information disclosure via a side channel with local access.
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00270.html
https://access.redhat.com/solutions/tsx-asynchronousabort
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11135
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-2015-11135
Vulnerable and Updated
TIE Server (includes MAR 2.4)	3.0.x, 2.3.x, 2.2.x	See Product Specific Notes below
Not Vulnerable
NSP	All
NTBA	All
Vulnerable and Not Exploitable - Update Planned
ATD	4.8.x, 4.6.x
DLP Monitor	11.x
DLP Prevent	11.x
DXL Server	5.0.x, 4.1.x
MAR (See TIE for MAR 2.4)	2.3.x, 2.2.x
MEG	7.6.40x
MLOS	2
MLOS	3
MWG	8.1.x, 7.8.2.x
NSM Linux	9.1.x
SIEM Enterprise Security Manager	11.x, 10.x

NOTE: After applying the update you must reboot the appliance, physical or virtual, to fully apply the fix.

Remediation
Install the versions listed below when the releases are made available. McAfee recommends you install the available fixes. Otherwise, apply any available workarounds.

Go to the Product Downloads site, and download the applicable product update/hotfix file:
 

Product	Version	Type	Earliest Fixed Version	Release Date
TIE Server	3.0.x, 2.3.x, 2.2.x	Custom installation	See Product Specific Notes below	February 11, 2020

 
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, which you can download from the Documentation tab, for instructions on how to install these updates.
Product Specific Notes
TIE Server 2.x and 3.x:
Follow the instructions in KB90843 to update the corresponding MLOS packages.
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 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.

What is CVSS?
CVSS, or Common Vulnerability Scoring System, is the result of the National Infrastructure Advisory Council's effort to standardize a system of assessing the criticality of a vulnerability. This system offers an unbiased criticality score between 0 and 10 that customers can use to judge how critical a vulnerability is and plan accordingly. For more information, visit the CVSS website at: http://www.first.org/cvss/.
 
When calculating CVSS scores, McAfee has adopted a philosophy that fosters consistency and repeatability. Our guiding principle for CVSS scoring is to score the exploit under consideration by itself. We consider only the immediate and direct impact of the exploit under consideration. We do not factor into a score any potential follow-on exploits that might be made possible by the successful exploitation of the issue being scored.

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?
McAfee's key priority is the security of our customers. If a vulnerability is found within any of McAfee's 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.
Resources
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:

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

Disclaimer
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.