Tag Archives: VMware vCenter Server

May 2019 Update Summary

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Note to my readers:

Due to professional commitments over the last several weeks and for the next 2 weeks; updates and new content to this blog have been and will be delayed. I’ll endeavour to return to a routine manner of posting as soon as possible.

Thank you.
====================

Earlier today Microsoft and Adobe released their monthly security updates. Microsoft resolved 79 vulnerabilities (more formally known as CVEs (defined) with Adobe addressing 87 vulnerabilities.

Adobe Acrobat and Reader: 84x priority 2 vulnerabilities (48x Critical and 36x Important severity)

Adobe Flash: 1x priority 2 vulnerability (1x Critical severity)

Adobe Media Encoder: 2x priority 3 vulnerabilities (1x Critical severity and 1x Important severity)

If you use Acrobat/Reader or Flash, please apply the necessary updates as soon as possible. Please install their remaining priority 3 update when time allows.

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For Microsoft; this month’s list of Known Issues is available within their monthly summary page and applies to all currently supported operating systems. All issues however do have at least 1 workaround:

4493730   Windows Server 2008 Service Pack 2 (Servicing Stack Update)

4494440   Windows 10, version 1607, Windows Server 2016

4494441   Windows 10, version 1809, Windows Server 2019

4497936   Windows 10, version 1903

4498206   Internet Explorer Cumulative Update

4499151   Windows 8.1, Windows Server 2012 R2 (Monthly Rollup)

4499154   Windows 10

4499158   Windows Server 2012 (Security-only update)

4499164   Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1

4499165   Windows 8.1 Windows Server 2012 R2 (Security-only update)

4499167   Windows 10, version 1803

4499171   Windows Server 2012 (Monthly Rollup)

4499179   Windows 10, version 1709

4499180   Windows Server 2008 Service Pack 2 (Security-only update)

4499181  Windows 10, version 1703

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US Computer Emergency Readiness Team (CERT) (please see the “Information on Security Updates” heading of the “Protecting Your PC” page):

https://www.us-cert.gov/

A further useful source of update related information is the Calendar of Updates.

News/announcements of updates in the categories of General SoftwareSecurity Software and Utilities are available on their website. The news/announcements are very timely and (almost always) contain useful direct download links as well as the changes/improvements made by those updates (where possible).

If you like and use it, please also consider supporting that entirely volunteer run website by donating.

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For this month’s Microsoft updates, I will prioritize the order of installation below:
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Windows RDP: CVE-2019-0708 (also includes an update for Windows Server 2003 and Windows XP)

Scripting Engine: CVE-2019-0924 ,  CVE-2019-0927 , CVE-2019-0922 , CVE-2019-0884 , CVE-2019-0925 , CVE-2019-0937 , CVE-2019-0918 , CVE-2019-0913 , CVE-2019-0912 , CVE-2019-0911 , CVE-2019-0914 , CVE-2019-0915 , CVE-2019-0916 , CVE-2019-0917

Windows DHCP Server: CVE-2019-0725

Microsoft Word: CVE-2019-0953

Microsoft Graphics Component: CVE-2019-0903

Microsoft Edge and Internet Explorer (multiple versions of Edge and IE affected)

Windows Error Reporting: CVE-2019-0863

Microsoft Advisory for Adobe Flash Player

Microsoft Windows Servicing Stack Updates

For the Intel Microarchitectural Data Sampling (MDS) vulnerabilities, please follow the advice of Intel and Microsoft within their advisories. A more thorough list of affected vendors is available from here.

====================
Please install the remaining updates at your earliest convenience.

As per standard best practice; I would recommend backing up the data on any device for which you are installing updates to prevent data loss in the rare event that any update causes unexpected issues. I have provided further details of updates available for other commonly used applications below.

Thank you.

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Nvidia Graphics Drivers:
=======================
3 security vulnerabilities with the most severe having a CVSS V3 (defined) base score of 7.7 have been resolved within Nvidia’s graphics card drivers (defined) in May. These vulnerabilities affect Windows only. All 3 are local vulnerabilities rather than remote meaning that an attacker would first need to compromise your system before exploiting the Nvidia vulnerabilities to elevate their privileges. The steps to install the drivers are located here. If you use affected Nvidia graphics card, please consider updating your drivers to the most recent available.

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VMware
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VMWare has released the following security advisories:

Workstation Pro:

Security Advisory 1: Addresses 1x DLL hijacking vulnerability (defined)

Security Advisory 2: Addresses 4x vulnerabilities present in Workstation Pro and the products listed below. Please make certain to install Intel microcode updates as they become available for your systems as they become available in addition to these VMware updates:

VMware vCenter Server (VC)
VMware vSphere ESXi (ESXi)
VMware Fusion Pro / Fusion (Fusion)
vCloud Usage Meter (UM)
Identity Manager (vIDM)
vCenter Server (vCSA)
vSphere Data Protection (VDP)
vSphere Integrated Containers (VIC)
vRealize Automation (vRA)

If you use the above VMware products, please review the security advisories and apply the necessary updates.

Thank you.

Vendors Respond to Spectre NG Vulnerabilities

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Update: 24th July 2018
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I have updated the list of vendor responses below to include further Red Hat versions and CentOS:

Red Hat Enterprise Linux 7:
https://access.redhat.com/errata/RHSA-2018:1629

CentOS 6:
https://lists.centos.org/pipermail/centos-announce/2018-July/022968.html

CentOS 7:
https://lists.centos.org/pipermail/centos-announce/2018-May/022843.html
====================

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Update: 19th June 2018
====================
Last Wednesday, the security news and troubleshooting website BleepingComputer published a table detailing the complete list of updates required to mitigate the Meltdown, Spectre and SpectreNG (also known as Spectre variant 4) vulnerabilities for all recent versions of Windows. This is very useful because I realise my previous blog post on Meltdown and Spectre was at times hard to follow (it has a lot of info within it).

As of Tuesday, 12th June Microsoft have released updates to address SpectreNG. While you can install these updates Microsoft have advised their security protections will not be enabled unless you choose to do so. This is due to the lower risk of SpectreNG and also given that enabling the security enhancements of these updates can lead to a performance penalty of up to 8% (as I detailed below).

Microsoft provide step by step advice and guidance if you wish to enable these updates within this security advisory. It is likely other OS vendors will take a similar approach e.g. Red Hat may also choose to distribute these updates but not enable them so as to work around the performance penalty.

For more information on the semi-related Intel Lazy Floating point vulnerability, please see my separate post.

Thank you.

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Original Post
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On Monday more details of these vulnerabilities were made available by affected vendors among them Red Hat, Google, Intel, IBM and Microsoft. There are two new vulnerabilities named:

Rogue System Register Read (Spectre Variant 3a) (CVE-2018-3640)

Speculative Store Bypass (SSB) (Spectre Variant 4) (CVE-2018-3639)

Why should these vulnerabilities be considered important?

Rogue System Register Read cannot be leveraged by an external attacker; they must instead log onto a vulnerable system and carry out further steps to exploit it. Once exploited the attacker may be able to obtain sensitive information by reading system parameters via side-channel analysis.

For Windows; successful exploitation of this vulnerability will bypass Kernel Address Space Layout Randomization (KASLR) protections. I have talked about ASLR (defined) before but provides this link more detail on kernel ASLR.

Google Project Zero’s Jann Horn and Microsoft’s Ken Johnson first reported Speculative Store Bypass. It can possibly be used by attacker externally (from the internet). I use the term “possibly” since the mitigations added to web browsers following Spectre variant 2 earlier this year will make it more difficult for an attacker to do so. Indeed, Intel rates the risk as “moderate.” This is a more serious vulnerability which may allow an attacker access to read privileged memory areas. An example would be a script running in one browser tab being able to read data from another browser tab.

Red Hat have made available a video more clearly explaining the Speculative Store Bypass (SSB) vulnerability.

How can I protect myself from these vulnerabilities?
At this time microcode updates are being developed by Red Hat, AMD, ARM, Intel, IBM and Microsoft. The affected products from many popular vendors are available from the following links. These vulnerabilities will not be addressed via software fixes but hardware fixes instead.

It is recommended to follow the best practice advice for these vulnerabilities as per the US-CERT namely:

1. Please refer to and monitor the links below for the updates from affected vendors.
2. Test these updates before deploying them widely
3. Ensure the performance impact (anticipated to be between 2 – 8%) is acceptable for the systems you manage/use.

These updates will ship with the mitigations disabled and if appropriate/acceptable for an affected system; the protection (along with its performance impact) can be enabled.

These updates are scheduled to be made available before the end of May. Cloud vendors (e.g. Amazon AWS, Microsoft Azure etc.) will also update their systems once the performance impact is determined and if deemed acceptable.

Thank you.

====================
AMD:
https://www.amd.com/en/corporate/security-updates

ARM:
https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability

Cisco:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180521-cpusidechannel

IBM:
https://www.ibm.com/blogs/psirt/potential-impact-processors-power-family/

Intel:
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00115.html

Microsoft (full impact yet to be determined):
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV180012

https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/ADV180013

Red Hat:
https://access.redhat.com/security/cve/cve-2018-3639

Oracle:
https://blogs.oracle.com/oraclesecurity/processor-vulnerabilities-cve-2018-3640-and-cve-2018-3639

SUSE:
https://www.suse.com/de-de/support/kb/doc/?id=7022937

Ubuntu:
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/Variant4

VMware ESXI, Fusion/Fusion Pro, Workstation/Workstation Pro and vCenter Server:
https://www.vmware.com/security/advisories/VMSA-2018-0012.html

https://kb.vmware.com/s/article/54951

https://kb.vmware.com/s/article/55111
====================

February 2018 Update Summary

====================
Update: 28th February 2018:
Please scroll down in this post to view more recent software updates available since the original posting date of the 13th of February 2018. Thank you.
====================

Earlier today Microsoft made available their expected monthly security updates to resolve 50 vulnerabilities more formally known as CVEs (defined). As always further details are provided within Microsoft’s Security Updates Guide.

At the time of writing there are no Known Issues for this months updates.

====================

In addition to these updates; Adobe released updates for the following products:

Adobe Experience Manager (resolves 2x priority 3 CVEs)

Adobe Acrobat and Reader (priority 2, 41 CVEs)

Flash Player v28.0.0.161 (priority 1, 2 CVEs) (released on the 6th of February):

As always; you can monitor the availability of security updates for most your software from the following websites (among others) or use Secunia PSI:
—————
US Computer Emergency Readiness Team (CERT) (please see the “Information on Security Updates” heading of the “Protecting Your PC” page):

https://www.us-cert.gov/

A further useful source of update related information is the Calendar of Updates. News/announcements of updates in the categories of General SoftwareSecurity Software and Utilities are available on their website. The news/announcements are very timely and (almost always) contain useful direct download links as well as the changes/improvements made by those updates (where possible).

If you like and use it, please also consider supporting that entirely volunteer run website by donating.

====================
For this month’s Microsoft updates, I will prioritize the order of installation below. A useful list of all CVEs for this month is present here:

====================

CVE-2018-0825: StructuredQuery Remote Code Execution Vulnerability

CVE-2018-0850 and CVE-2018-0852 : Microsoft Office Outlook (separately the Office Equation Editor was disabled by this months updates to attempt to prevent further exploitation).

Microsoft Edge and Internet Explorer (multiple versions of Edge and IE affected)

====================

Please install the remaining updates at your earliest convenience.

As usual; I would recommend backing up the data on any device for which you are installing updates to prevent data loss in the rare event that any update causes unexpected issues.

Similar to last month (due to the availability of further mitigations for x86 (32 bit) version of Windows); please take extra care with your back up to ensure you can restore your systems should you wish to revert your systems prior to installing the Meltdown and Spectre patches should you wish to uninstall the Security only bundle of updates or the updates are causing your system to become unstable or to lower its performance.

Thank you.

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Update: 26th February 2018
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VMware Updates:
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In addition to last month’s VMware updates; further security updates have been issued in February. The affected products/appliances are listed below.

Please review the above linked to security advisories and knowledge base article and apply the necessary updates and mitigation steps.

  • VMware vCloud Usage Meter (UM) 3.x
  • VMware vIdentity Manager (vIDM) 2.x and 3.x
  • VMware vCenter Server (vCSA) 5.5, 6.0 and 6.5
  • VMware vSphere Data Protection (VDP) 6.x
  • VMware vSphere Integrated Containers (VIC) 1.x
  • VMware vRealise Automation (vRA) 6.x and 7.x

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Google Chrome:
=======================
This month Google made available 2 updates for Google Chrome; one in early February and the other in mid-February each resolving 1 security issue.

Google Chrome updates automatically and will apply the update the next time Chrome is closed and then re-opened. Chrome can also be updated immediately by clicking the Options button (it looks like 3 stacked small horizontal lines, sometimes called a “hamburger” button) in the upper right corner of the window and choosing “About Google Chrome” from the menu. Follow the prompt to Re-launch Chrome for the updates to take effect.
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VideoLAN VLC:
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On the 28th of February VideoLAN made available VLC version 3.0.1 for Linux, Windows, macOS, BSD, Android, iOS, UWP and Windows Phone. It’s release notes detail fixes for 2 security issues (use-after-free (defined) and stack buffer overflow (defined)) and a further potential security issue (out of bounds (defined) read). More than 30 other non-security issues were also resolved.

Please update to version 3.0.1 to benefit from these improvements.

In early February VideoLAN made available version 3.0 for Linux, Windows, macOS, BSD, Android, iOS, UWP and Windows Phone. While its release notes do not detail any vulnerabilities addressed it includes smashing stack protection (SSP)(defined) and high entropy ASLR (HEASLR, also previously discussed on this blog)(ASLR: defined) for 64 bit versions of VLC. If you use VLC, you may wish to update to this version to benefit from the improved performance and features it offers while also increasing security.

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Skype:
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Earlier this month it was reported (for example here and here) that Skype contained an important elevation of privilege (defined) security vulnerability allowing the use of DLL (defined) hijacking (defined) within its update installer.

This vulnerability required a significant volume of remediation and was not addressed within the existing 7.40 version of Skype. Microsoft subsequently issued version 8 in October to address this vulnerability. 8.16.04 is the most recent version of Skype at the time of writing.

The above referenced version is the desktop version of Skype rather than the Microsoft Store app version which will be offered for Windows 10 installations.

Windows 7 and Windows 8.1 will be offered the 8.16.04 desktop version. Updates are available from skype.com Please note; for existing 7.40 users; an automatic update prompt will not display alerting you to the presence of version 8.

If you Skype, please upgrade it to the most recent version to resolve this vulnerability.

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Wireshark 2.4.5 and 2.2.13
=======================
v2.4.5: 9 CVEs (defined) resolved

v2.2.13: 8 CVEs resolved

As per standard process Linux distributions can obtain this update using the operating systems standard package manager (if the latest version is not installed automatically using the package manager you can instead compile the source code (v2.4.5) or v2.2.13). This forum thread and this forum thread may also be helpful to you with installing Wireshark on your Linux based system.

For Mac OS X and Windows, the update is available within the downloads section of the Wireshark website. In addition, a detailed FAQ for Wireshark is available here

January 2018 Update Summary

====================
Update: 31st January 2018:
Please scroll down in this post to view more recent software updates available since the original posting date of the 16th of January 2018. Thank you.
====================

Last Tuesday Microsoft released their routine security updates to address 56 vulnerabilities more formally known as CVEs (defined). Further details are provided within Microsoft’s Security Updates Guide.

This month there are 11 knowledge base articles detailing potential issues (many of which are pending resolutions) you may experience upon installing these updates. They are listed below for your reference:

4056890

4056891

4056892

4056893

4056888

4056895

4056898

4056894

4056897

4056896

4056899

====================

Separately Adobe released Flash Player v28.0.0.137 to address a single priority 2 CVE.

As always; you can monitor the availability of security updates for most your software from the following websites (among others) or use Secunia PSI:
—————
US Computer Emergency Readiness Team (CERT) (please see the “Information on Security Updates” heading of the “Protecting Your PC” page):

https://www.us-cert.gov/

A further useful source of update related information is the Calendar of Updates. News/announcements of updates in the categories of General SoftwareSecurity Software and Utilities are available on their website. The news/announcements are very timely and (almost always) contain useful direct download links as well as the changes/improvements made by those updates (where possible).

If you like and use it, please also consider supporting that entirely volunteer run website by donating.

====================
For January’s Microsoft updates, I will prioritize the order of installation below. I will discuss this month’s out of band (outside of the regular schedule) patches for Meltdown and Spectre in a separate blog post; the relevant CVEs are still listed below. A useful list of all CVEs for this month is present here:

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CVE-2017-5753 – Bounds check bypass (known as Spectre Variant 1)

CVE-2017-5715 – Branch target injection (known as Spectre Variant 2)

CVE-2017-5754 – Rogue data cache load (known as Meltdown Variant 3)

CVE-2018-0802: Microsoft Office zero day (similar to Novembers Office equation editor vulnerability)

Microsoft Office (18 further CVEs)

Microsoft Edge and Internet Explorer (multiple versions of Edge and IE affected)

====================

Please install the remaining updates at your earliest convenience.

As usual; I would recommend backing up the data on any device for which you are installing updates to prevent data loss in the rare event that any update causes unexpected issues.

For this month; please take extra care with your back up to ensure you can restore your systems should you wish to revert your systems prior to installing the Meltdown and Spectre patches should you wish to uninstall the Security only bundle of updates or the updates are causing your system to become unstable.

Thank you.

=======================
Wireshark 2.4.4 and 2.2.12
=======================
v2.4.4: 3 CVEs (defined) resolved

v2.2.12: 4 CVEs resolved

As per standard process Linux distributions can obtain this update using the operating systems standard package manager (if the latest version is not installed automatically using the package manager you can instead compile the source code (v2.4.4) or v2.2.12). This forum thread and this forum thread may also be helpful to you with installing Wireshark on your Linux based system.

For Mac OS X and Windows, the update is available within the downloads section of the Wireshark website. In addition, a detailed FAQ for Wireshark is available here.

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Update: 24th January:
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Oracle:
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Oracle have resolved 237 vulnerabilities with the security updates they have made available this month. Further details and installation steps are available here. Within the 237 vulnerabilities addressed, 21 vulnerabilities were addressed in the Java runtime. 18 of these 21 are remotely exploitable without an attacker needing to obtain a user’s username and password (their credentials).

If you use any of the Oracle products listed here, please install the appropriate security updates as soon as possible.

Particular priority should be given to Oracle WebLogic Server and PeopleSoft due to documented incidents of attackers using such installations for crypto currency mining with one such incident resulting in more than USD $226,000 being mined. Further details are available in the following blog post from security vendor Onapsis.
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Further updates released in January:
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VMware Updates:
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In early January; VMware issued security updates to address the Meltdown and Spectre vulnerabilities within some of their products. Another advisory  was also released later in January. The affected products/appliances are listed below. For virtual machines used with VMware Fusion and VMware Workstation, the steps listed within this knowledge base article should also be followed.

Please review the above linked to security advisories and knowledge base article and apply the necessary updates and mitigation steps.

Affected products/appliances:

  • VMware vCenter Server (VC)
  • VMware vSphere ESXi (ESXi)
  • VMware Workstation Pro / Player (Workstation)
  • VMware Fusion Pro / Fusion (Fusion)

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Mozilla Firefox:
=======================
In January Mozilla issued security updates for Firefox and Firefox ESR (Extended Support Release):

Firefox 57.0.4 (2 mitigations added)

Firefox 58: 3x critical, 13x high, 13x moderate, 2x low CVEs

Firefox 58.0.1: 1x critical CVE

Firefox ESR 52.6: 1 high CVE

Firefox ESR 52.6: 2x critical, 8x high, 1x moderate

Further details of the security issues resolved by these updates are available in the links above. Details of how to install updates for Firefox are here. If Firefox is your web browser of choice, if you have not already done so, please update it as soon as possible to resolve these security issues.

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Google Chrome:
=======================
In late January an update for Google Chrome was made available which included 53 security fixes.

Google Chrome updates automatically and will apply the update the next time Chrome is closed and then re-opened. Chrome can also be updated immediately by clicking the Options button (it looks like 3 stacked small horizontal lines, sometimes called a “hamburger” button) in the upper right corner of the window and choosing “About Google Chrome” from the menu. Follow the prompt to Re-launch Chrome for the updates to take effect.

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7-Zip
=======================
In late January a security researcher located 2 vulnerabilities within 7-Zip. He reported them to the developer Igor Pavlov who very quickly released an updated version; v18.00 Beta. This has since been updated to 18.01 Stable to fix further issues (NOT security related).

The alternative Windows file manager Directory Opus will include the updated 7-Zip DLL (defined) within their next release. Their current beta already contains these fixes.

While 7-Zip does not have many vulnerabilities discovered within it (which has both advantages and disadvantages), there appears to be an increasing emphasis on it since it is used by anti-malware software and other applications e.g. VMware Workstation. Thus when a security update is issued; all of this software should eventually include the fixes. This occurred last year with the release of 7-Zip 16.00 to resolve 2 other security vulnerabilities.

Separately, Malwarebytes updated their Anti-Malware product to version 3.4.4 to update the 7-Zip DLL (defined) within it. Further details are available in my March 2018 Update Summary blog post.

If you use 7-Zip, please ensure it is updated to resolve both this year’s vulnerabilities and last year’s vulnerabilities (if you hadn’t already installed version 16 or later). Please also update Malwarebytes Anti-Malware or Directory Opus if you use them.

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Nvidia Geforce Drivers:
=======================
This driver update applies to Linux, FreeBSD, Solaris and Windows and mitigates the Meltdown security vulnerability (CVE-2017-5753). While Nvidia’s GPUs are not vulnerable to Meltdown or Spectre, the GPUs interaction with an affected CPU has the potential for exploitation.The steps to install the drivers are detailed here. I detailed where Nvidia list their security advisories in a previous blog post. More details about the Meltdown and Spectre vulnerabilities are available in this blog post.

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Hitman Pro:
=======================
As recommended on my Tools and Resources page, Hitman Pro (now part of Sophos Security) has been updated to version 3.8.20 (Build 292). This update resolves 2 vulnerabilities relating to libraries (defined) the tool uses namely zlib and libpng. Any previous version of the tool should update automatically when opened to the most recent version.

VMware Security Updates Address Potential Man-in-the-Middle Attack

In the latter half of last week VMware released security updates for the following products:

  • vCenter Server v6.0 (prior to 6.0 U2)
  • vCenter Server 5.5 U3a – U3c
  • vCloud Director version 5.5.5 for Windows
  • vRealize Automation Identity Appliance version 6.2.4 for Linux
  • Client Integration Plugin for Apple Mac OS X and Windows

These updates resolve a potential man-in-the-middle-attack (MiTM)(defined) that is caused by an error in how the VMware Client Integration Plugin handles session content. This issue was assigned the CVE number (defined) CVE-2016-2076

Why Should This Issue Be Considered Important?
If an attacker were to successfully exploit this issue it may lead to the disclosure of the information within the client session between the server (as a result of the man-in-the-middle-attack). This issue could also result in the session between the client and the server becoming hijacked if the user of the vSphere Web Client were to visit a malicious website.

How Can I Protect Myself From This Issue?
VMware have released updates to resolve this issue within the affected products. Please refer to VMware’s security advisory to download the necessary updates.

Please note that both the server side (namely (i.e. vCenter Server, vCloud Director, and vRealize Automation Identity Appliance) and client side devices (i.e. Client Integration Plugin (CIP) of the vSphere Web Client) that communicate during a session must be separately updated to protect against this issue.

A step by install checklist to perform these updates for the affected products is also provided in the above mentioned advisory.

Thank you.