Tag Archives: Corporate Security

WPA2 KRACK Vulnerability: What you need to know

Last Sunday, the early signs of a vulnerability disclosure affecting the extensively used Wi-Fi protected access (WPA2) protocol were evident. The next day, disclosure of the vulnerability lead to more details. The vulnerability was discovered by  two researchers Mathy Vanhoef and Frank Piessens of the Katholieke Universiteit Leuven (KU Leuven) while examining OpenBSD’s implementation of the WPA2 four way handshake.

Why should this vulnerability be considered important?
On Monday 16th October, the KRACK (key re-installation attacks) vulnerability was disclosed. This vulnerability was found within the implementation of the WPA2 protocol rather than any single device making it’s impact much more widespread. For example, vulnerable devices include Windows, OpenBSD (if not already patched against it), Linux, Apple iOS, Apple macOS and Google Android.

If exploited this vulnerability could allow decryption, packet replay, TCP connection hijacking and if WPA-TKIP (defined) or GCMP (explained) are used; the attacker can inject packets (defined) into a victim’s data, forging web traffic.

How can an attacker exploit this vulnerability?
To exploit the vulnerability an attacker must be within range of a vulnerable Wi-Fi network in order to perform a man in the middle attack (MiTM)(defined). This means that this vulnerability cannot be exploited over the Internet.

This vulnerability occurs since the initial four way handshake is used to generate a strong and unique key to encrypt the traffic between wireless devices. A handshake is used to authenticate two entities (in this example a wireless router and a wireless device wishing to connect to it) and to establish the a new key used to communicate.

The attacker needs to manipulate the key exchange (described below) by replaying cryptographic handshake messages (which blocks the message reaching the client device) causing it to be re-sent during the third step of the four way handshake. This is allowed since wireless communication is not 100% reliable e.g. a data packet could be lost or dropped and the router will re-send the third part of the handshake. This is allowed to occur multiple times if necessary. Each time the handshake is re-sent the attacker can use it to gather how cryptographic nonces (defined here and here) are created (since replay counters and nonces are reset) and use this to undermine the entire encryption scheme.

How can I protect myself from this vulnerability?
AS described in this CERT knowledge base article.; updates from vendors will be released in the coming days and weeks. Apple (currently a beta update) and Microsoft already have updates available. OpenBSD also resolved this issue before the disclosure this week.

Microsoft within the information they published for the vulnerability discusses how when a Windows device enters a low power state the vulnerable functionality of the wireless connection is passed to the underlying Wi-Fi hardware. For this reason they recommend contacting the vendor of that Wi-Fi hardware to request updated drivers (defined).

Links to affected hardware vendors are available from this ICASI Multi-Vendor Vulnerability Disclosure statement. Intel’ security advisory with relevant driver updates is here. The wireless vendor, Edimax also posted a statement with further updates to follow. A detailed but easy to use list of many vendors responses is here. Since I use an Asus router, the best response I could locate is here.

======
Update: 21st October 2017:
Cisco have published a security advisory relating to the KRACK vulnerability for its wireless products. At the time of writing no patches were available but the advisory does contain a workaround for some of the affected products.
======

The above updates are software fixes but updates will also be made available for devices in the form of firmware updates e.g. for wireless routers, smartphones and Internet of Things (IoT)(defined) devices. For any wireless devices you own, please check with the manufacturer/vendor for available updates with the above CERT article and vendor response list detailing many of the common vendors.

Thank you.

Infineon TPM Chips Patched Against Disclosed Vulnerability

With the release of Microsoft’s security updates last week; Infineon published a security advisory relating to a vulnerability discovered by security researchers in 2012.

Why should this vulnerability be considered important?
The vulnerable hardware is mostly to be found within corporate computers from manufacturers such as HP, Fujitsu and Lenovo. Google Chromebooks, routers and some Internet of Things (IoT)(defined). The vulnerability allows an attacker to determine a private (defined) encryption key when it has been generated by a vulnerable TPM (Trusted Platform Module) using only the public key (defined). Once the private key has been obtained it can be used by an attacker to decrypt the contents of a Microsoft BitLocker encrypted hard drive, to digitally sign fake software releases, to sign malware (making it appear more legitimate) as well impersonating the legitimate owner of the private key.

This vulnerability also affects cryptographic smart cards, security tokens and other secure hardware chips manufactured by Infineon. An estimate 760k devices are thought to be vulnerable while the true number could be up to three times that amount.

While the researchers were able to verify an attacker could derive the private key from 1024 and 2048 but public key, they were unable to do so for 4096 bit key since “a 4096-bit RSA key is not practically factorizable now, but “may become so, if the attack is improved.” For 1024 and 2048 bit keys, the factorisation can be easily parallelised by x number of CPUs, reducing the time taken by x times (where x is the number of cores a CPU has) allowing completion in hour or days.

How can I protect myself from this vulnerability?
Microsoft’s advisory provides the recommended steps for systems using Windows or other Microsoft products e.g. Active Directory Certificate Services (ADCS), Active Directory Directory Services (ADDS) (among others). The updates they recommend are only a workaround for the vulnerability. The vulnerability must still be resolved by applying updates to the vulnerable TPM chips. This advice also includes clearing the TPM and re-generating the necessary keys only after applying the updates from Microsoft.

Similarly Google made available Chrome OS M60 to mitigate this vulnerability. Further links to other affected vendors are listed below:

Fujitsu

HP Customer Support

HP Enterprise Support

Lenovo

Toshiba

Thank you.

October 2017 Security Updates Summary

As scheduled Microsoft released their monthly security updates earlier today. They address 62 vulnerabilities; more formally known as CVEs (defined). These are detailed within Microsoft’s new Security Updates Guide.

This month there are 4 Known Issues (kb4041691, kb4042895 , kb4041676 and kb4041681) for this month’s Microsoft updates. 2 of these issues relate to an exception error dialog box appearing, with the others causing a black screen, updates not to install in express , a BSOD and changing of display languages. Microsoft states in each link above they are working on resolutions to these issues.

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

Update: 18th October:

On the 16th of October Adobe released Flash Player v27.0.0.170 to address a critical zero day (defined) vulnerability being exploited in the wild (namely being exploited on computing devices used by the general public in their professional and personal lives)). The BlackOasis APT group are believed to operate in the Middle East. The group is using malicious Microsoft Office documents with embedded ActiveX controls which contain the necessary Flash exploit. This exploit later installs the FinSpy malware.

Please install this update as soon as possible for any device with Flash Player installed. Google Chrome has already automatically received the update while earlier today Windows 8.1 and Windows 10 began receiving it.

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.

—————
If you use any of the above software, please install the appropriate updates as soon as possible. Steps for installing updates for Windows are provided on the “Protecting Your PC” page.

====================
For this month’s Microsoft updates, I will prioritize the order of installation for you below:
====================
Critical severity:

Microsoft Office Vulnerability : CVE-2017-11826 : While not critical severity since it is already being exploited by attackers namely a zero day (defined) vulnerability.

Windows DNS Vulnerabilities: Further details provided within this news article

Windows Search Service (CVE-11771): affects Windows 7 up to and including Windows 10

Windows Font Vulnerabilities: CVE-2017-11762 and CVE-2017-11763

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.

Thank you.

=======================
Nvidia Geforce Drivers:
=======================
This update (released in September 2017) applies to Linux, FreeBSD, Solaris and Windows and resolves up to 8 security vulnerabilities. The steps to install the drivers are detailed here. I detailed where Nvidia list their security advisories in a previous blog post.

=======================
Google Chrome:
=======================
Google Chrome: includes 35 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 update to take effect.
=======================

=======================
Wireshark 2.4.2 and 2.2.10
=======================
v2.4.2: 5 CVEs (defined) resolved

v2.2.10: 3 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 (v2.4.2) or v2.2.10). 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.
=======================

=======================
Oracle:
=======================
This month Oracle resolved 250 vulnerabilities. Further details and installation steps are available here. Within the 250 vulnerabilities addressed, 22 vulnerabilities were addressed in the Java runtime.

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

September 2017 Security Updates Summary

Earlier today Microsoft made available their scheduled monthly security updates. These resolve 81 vulnerabilities; more formally known as CVEs (defined). They are detailed within Microsoft’s new Security Updates Guide.

This month there are 3 Known Issues (KB4038792 , KB4038793 , and KB4011050) for this month’s Microsoft updates. 2 of these issues relate to the breaking NPS authentication or the hanging of Japanese IME. The first two links suggest editing the Windows Registry (defined) or installing an update (respectively for each issue) to correct them. The final issue involves the display of black borders around cells in Excel, resolved by installing an update.

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

Separately Adobe made available three security bulletins for the following products:

Adobe ColdFusion (priority 2, 3x critical, 1x important CVEs)

Adobe Flash (priority 1, 2x critical CVEs)

Adobe RoboHelp (priority 3, 1x important, 1x moderate CVEs)

The priority ratings are explained in this link. Depending on which version of Flash Player you have, please review the Adobe security bulletin or Microsoft bulletin as appropriate and apply the recommended updates. Google Chrome users should have the updated version installed automatically later this week (if not already available).

If you use any of the above-mentioned Adobe products, please review the security bulletins linked to above and apply the necessary updates. As per the established process the Flash update should be installed as soon as possible since exploit kits (defined) tend to take advantage of newly disclosed vulnerabilities very quickly.

Of note this month is a vulnerability in PDF reader software which does not affect Adobe’s Acrobat and Reader DC products. A detailed list is available in this news article. Google Chrome, Firefox and others have resolved this vulnerability while other affected products remain in progress.

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.

—————
If you use any of the above software, please install the appropriate updates as soon as possible. Steps for installing updates for Windows are provided on the “Protecting Your PC” page.

====================
For this month’s Microsoft updates, I will prioritize the order of installation for you below:
====================
Critical severity:

Windows NetBIOS Vulnerability (CVE-2017-0161)(vulnerability affects more than Windows 10)(NetBIOS : defined)

Windows DHCP Vulnerability (CVE-2017-8686) (vulnerability affects more than Windows Server 2016)(DHCP : defined)

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

Microsoft Office (CVE-2017-8630 and CVE-2017-8744)(multiple versions of Office affected)
====================

Please install the remaining updates at your earliest convenience.

As always you can find detailed information on the contents of each security bulletin within ComputerWorld’s Patch Tuesday Debugged column. That link is becoming less useful, it has not been updated since June 2017.

Another security pre-caution that you may wish to take if you have Microsoft EMET (please ensure your version of EMET is the most recent version 5.52) installed is to use it to protect you from Adobe Flash being used to exploit vulnerabilities when you open a Microsoft Office document or Adobe PDF file. I provide recommendations of how to do this at the end of the July 2015 Update Summary. Please note that Microsoft EMET will be out of support on the 31st of July 2018.

As noted in this new blog post, parts of EMET are to become available in the Creator’s Fall Update for Windows 10 set for release in September 2017. Versions 1703 and 1709 of Windows 10 will consequently block the installation of EMET. This makes sense for version 1709 since it includes a replacement for EMET while 1703 (to the best of my knowledge does not).

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.

Thank you.

August 2017 Security Updates Summary

It’s the second Tuesday of August and Microsoft and Adobe made available their monthly scheduled security updates.

Microsoft resolved 48 vulnerabilities in total more formally known as CVEs (defined). These are detailed within Microsoft’s new Security Updates Guide.

This month there is only 1 Known Issue for this month’s Microsoft updates.

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

Separately Adobe made available four security bulletins for the following products:

Adobe Digital Editions (priority 2, 2x critical, 7x important CVEs)

Adobe Experience Manager (priority 2, 1x important, 2x moderate CVEs)

Adobe Acrobat/Reader (priority 2, 43x critical, 24 important CVEs)

Adobe Flash (priority 1, 1x critical, 1x important CVEs)

The priority ratings are explained in this link. Depending on which version of Flash Player you have, please review the Adobe security bulletin or Microsoft bulletin (the link includes “April” in the URL but it is not a typo) as appropriate and apply the recommended updates. Google Chrome users should have the updated version installed automatically later this week (if not already available).

If you use any of the above-mentioned Adobe products, please review the security bulletins linked to above and apply the necessary updates. As per the established process the Flash update should be installed as soon as possible since exploit kits (defined) tend to take advantage of newly disclosed vulnerabilities very quickly.

Of note this month is the particularly large Adobe Acrobat/Reader update and the very small Flash Player update. The number of vulnerabilities resolved in last month’s Flash Player update was also small but it is too early to tell if vulnerability is moving away from Flash Player due to Adobe’s recent notice of their intention to de-commission Flash Player in 2020.

=======================
Update:12th September 2017:
=======================
Adobe last month updated their Adobe Acrobat and Acrobat Reader again after the availability of the initial patches in order resolve a regression (defined). Please ensure your installations of these products are updated to the version detailed by Adobe in their updated security bulletin (or are more recent than those listed in the bulletin).

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

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.

—————
If you use any of the above software, please install the appropriate updates as soon as possible. Steps for installing updates for Windows are provided on the “Protecting Your PC” page.

====================
For this month’s Microsoft updates, I will prioritize the order of installation for you below:
====================
Critical severity:

Windows Search

Microsoft Windows Hyper-V

Windows Scripting Engine (affecting Edge, Internet Explorer and Office)

Microsoft Edge and Internet Explorer

Windows PDF Viewer

 

Important severity:

Windows Font Engine
====================

Please install the remaining updates at your earliest convenience.

As always you can find detailed information on the contents of each security bulletin within ComputerWorld’s Patch Tuesday Debugged column.

Another security pre-caution that you may wish to take if you have Microsoft EMET (please ensure your version of EMET is the most recent version 5.52) installed is to use it to protect you from Adobe Flash being used to exploit vulnerabilities when you open a Microsoft Office document or Adobe PDF file. I provide recommendations of how to do this at the end of the July 2015 Update Summary. Please note that Microsoft EMET will be out of support on the 31st of July 2018.

As noted in this new blog post, parts of EMET are to become available in the Creator’s Fall Update for Windows 10 set for release in September 2017.

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.

Thank you.

July 2017 Security Updates Summary

Earlier today as expected Microsoft and Adobe made available their monthly scheduled security updates.

Microsoft resolved a relatively large number of vulnerabilities at 54 in total more formally known as CVEs (defined). However it’s less than last month at 94. These are detailed within Microsoft’s new Security Updates Guide.

After 2 months of updates being released for versions of Windows which were no longer supported, this month is a return to the usual expected patches.

At the time of writing there are no Known Issues for this month’s Microsoft updates. The IT Pro Patch Tuesday blog which I routinely referenced is no longer available.

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

Adobe made available just two security bulletins for the following products:

Adobe Connect (priority 3, 2x important and 1x moderate CVE)

Adobe Flash (priority 1, 1x critical, 2x important CVEs)

The priority ratings are explained in this link. Depending on which version of Flash Player you have, please review the Adobe security bulletin or Microsoft bulletin (the link includes “April” in the URL but it is not a typo) as appropriate and apply the recommended updates. Google Chrome users should have the updated version installed automatically later this week (if not already available).

If you use any of the above-mentioned Adobe products, please review the security bulletins linked to above and apply the necessary updates. As per the established process the Flash update should be installed as soon as possible since exploit kits (defined) tend to take advantage of newly disclosed vulnerabilities very quickly.

 

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.

—————
If you use any of the above software, please install the appropriate updates as soon as possible. Steps for installing updates for Windows are provided on the “Protecting Your PC” page.

====================
For this month’s Microsoft updates, I will prioritize the order of installation for you below:
====================
Critical severity:

Windows Search

Microsoft Edge and Internet Explorer

NT LAN Manager Elevation of privilege (CVE-2017-8563)(Corporate users: please ensure to set a more secure LDAP setting as per this knowledge base article)

Windows Explorer (CVE-2017-8463)
====================

Please install the remaining updates at your earliest convenience.

As always you can find detailed information on the contents of each security bulletin within ComputerWorld’s Patch Tuesday Debugged column.

Another security pre-caution that you may wish to take if you have Microsoft EMET (please ensure your version of EMET is the most recent version 5.52) installed is to use it to protect you from Adobe Flash being used to exploit vulnerabilities when you open a Microsoft Office document or Adobe PDF file. I provide recommendations of how to do this at the end of the July 2015 Update Summary. Please note that Microsoft EMET will be out of support on the 31st of July 2018.

As noted in this new blog post, parts of EMET are to become available in the Creator’s Fall Update for Windows 10 set for release in September 2017.

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.

Note: This post marks the 300th post on this blog. Thank you very much to my readers and here’s to the next 300!

=======================
Update:8th August 2017:
=======================

=======================
Nvidia Geforce Drivers:
=======================
This update applies to Linux, FreeBSD, Solaris and Windows and resolves up to 9 security vulnerabilities. The steps to install the drivers are detailed here. I detailed where Nvidia list their security advisories in a previous blog post.

June 2017 Security Updates Summary

Yesterday Microsoft and Adobe made available their monthly scheduled security updates.

Microsoft’s addressed a large number of vulnerabilities, 94 in total more formally known as CVEs (defined). These are detailed within Microsoft’s new Security Updates Guide.

At the time of writing there are three Known Issues for this month’s Microsoft updates (although all three knowledge base articles (4022717, 4022726, 4022715) describe the same iSCSI availability issue which is currently awaiting a resolution). The IT Pro Patch Tuesday blog hasn’t been updated since April and isn’t of assistance this time (and for that reason is becoming increasingly irrelevant).

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

This month again breaks the usual trend with these updates to offer a collection of updates for Windows XP and Windows Server 2003 which address the remaining vulnerabilities disclosed by the ShadowBrokers hacking team back in April this year. The majority of these updates were already released for more modern versions of Windows after the end of support dates for Windows XP (April 2014) and Windows Server 2003 (July 2015) respectively. Please review the detailed security advisory to download the appropriate updates for your systems. Further information is available in Microsoft’s blog posts here and here.

As with the update made available in May, these updates will not be available via Microsoft Updates or Automatic Updates. The availability of these updates provides mixed meanings; namely that while they were made available is positive. However for those corporations, organisations and individuals sing out dated versions of Windows, it provides them less reasons to migrate since it hints at an attitude that Microsoft will patch those system if the situation get very bad. While Microsoft worked to dispel this point, not everyone will be aware of their statement on this matter.

In a further break from the routine of Update Tuesday, I wanted to mention a further set of vulnerabilities found in Windows Defender which Microsoft patched last month. Please ensure your version of Windows is using the patched version of Windows Defender as detailed in this news article to address these issues.

====================
Separately Adobe made available four security bulletins to updates for the following products:

Adobe Captivate (1x priority 3 CVE)

Adobe Digital Editions (9x priority 3 CVEs)

Adobe Flash (9x priority 1 CVEs)

Adobe Shockwave Player (1x priority 2 CVE)

The priority ratings are explained in this link. Depending on which version of Flash Player you have, please review the Adobe security bulletin or Microsoft bulletin (the link includes “April” in the URL but it is not a typo) as appropriate and apply the recommended updates. Google Chrome users should have the updated version installed automatically later this week (if not already available).

If you use any of the above-mentioned Adobe products, please review the security bulletins linked to above and apply the necessary updates. As per the established process the Flash update should be installed as soon as possible since exploit kits (defined) tend to take advantage of newly disclosed vulnerabilities very quickly.

 

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.

—————
If you use any of the above software, please install the appropriate updates as soon as possible. Steps for installing updates for Windows are provided on the “Protecting Your PC” page.

====================
For the Microsoft updates this month, I will prioritize the order of installation for you below:
====================
Critical severity:

Windows Search

Windows Lnk

Windows Graphics

Microsoft Edge (CVE-2017-8498CVE-2017-8530 and CVE-2017-8523) and Internet Explorer

Microsoft Office  (CVE-2017-0260 and CVE-2017-8506)

Microsoft Outlook
====================

Install the remaining updates at your earliest convenience.

As always you can find detailed information on the contents of each security bulletin within ComputerWorld’s Patch Tuesday Debugged column.

Another security pre-caution that you may wish to take if you have Microsoft EMET (please ensure your version of EMET is the most recent version 5.52) installed is to use it to protect you from Adobe Flash being used to exploit vulnerabilities when you open a Microsoft Office document or Adobe PDF file. I provide recommendations of how to do this at the end of the July 2015 Update Summary. Please note that Microsoft EMET will be out of support on the 31st of July 2018.

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.

Thank you.

=======================
Update: 14th June 2017:
=======================
I wish to provide information on other notable updates from June 2017 which I would recommend you install if you use these software products. I only choose a small number of products to list here since it can easily become too many and I wish to highlight the security benefits of installing the latest version of applications many of us use everyday:

=======================
Mozilla Firefox:
=======================
Firefox 54.0

=======================
Mozilla Firefox ESR:
=======================
Firefox ESR 52.2

Details of how to install updates for Firefox are here. If Firefox is your web browser of choice, please update it as soon as possible to resolve these security issues.

=======================
Google Chrome:
=======================
Google Chrome: includes 30 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 update to take effect.
=======================

=======================
Wireshark 2.2.7 and 2.0.13
=======================
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 (v2.2.6) or v2.0.13). 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.
=======================