Windows 10: KB4535680 may trigger a Bitlocker Recovery

Posted on 2021-02-16 by guenni

[German]A brief note/question for administrators in the business environment who run Windows 10 clients with Bitlocker enabled. Do you experience increased Bitlocker recovery after installing secure boot security update KB4535680 from Jan. 2021? Microsoft's recommendation is not to install the security update for the time being until a fix is available.

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Adobe Reader/Acrobat DC Hotfix 21.001.20138 fixes install error 1722

Posted on 2021-02-16 by guenni

[German]Adobe has released a hotfix 21.001.20138 for its Adobe Reader and Acrobat DC. This update fixes a number of bugs, including installation error 1722, which I discussed here on the blog a few days ago.

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Update fixes Citrix ADC crash due to memory corruption because of HTTP/2

Posted on 2021-02-16 by guenni

Windows Update[German]Brief note for administrators of a Citrix Netscaler (ADC) used but suffering from shaking when using HTTP/2. Citrix has released a firmware update for the ADC firmware that should fix the issue.

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Egregor ransomware gang members arrested

Posted on 2021-02-15 by guenni

Paragraph[German]Law enforcement has struck another blow against cybercriminals. Investigators from the French and Ukrainian police were able to identify members of the Egregor ransomware group and now arrested them in Ukraine – according to a media report by Inter France.

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Windows/Office: Patchday review February 2021

Posted on 2021-02-14 by guenni

Windows Update[German]On February 9, 2021, Microsoft released a whole load of security updates for Windows, Office and so on on February Patchday. In this article, I would like to take a look at some of the bugs that were fixed and also (surprisingly few) problems that I encountered. For admins whose Windows Server 2016 gets stuck at 24% during update installation, Microsoft has withdrawn KB4601392 and released a new SSU KB5001078.

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Posted in Office, Security, Update, Windows | Tagged , , , , | 1 Comment
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Why ISL Online: Critical factors when choosing a remote desktop solution

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Fix for Windows 10/Server 1607 update hang at 24% due to SSU KB4601392

Posted on 2021-02-13 by guenni

[German]Administrators of Windows 10 version 1607 clients and Windows Server 1607 systems are complaining that installation of the Feb. 9, 2021 security update is stuck at 24%. Microsoft has withdrawn an update and has now released a revised servicing stack update KB5001078 as a solution.

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.NET Core und Visual Studio: Vulnerability CVE-2021-1721 revised

Posted on 2021-02-13 by guenni

[German]Microsoft also released security updates for a Denial of Service vulnerability in .NET Core and Visual Studio on February 9, 2021 (Patchday). Now a revision of the information as of February 11, 2021 has been followed up.

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WordPress plugin Responsive Menu: Serious security vulnerability patched

Posted on 2021-02-13 by guenni

[German]Administrators of a WordPress installation who use the Responsive Menu plugin should update it urgently (if not done automatically). The developers have fixed several serious vulnerabilities that allow WordPress installation takeover.

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New vulnerabilities discovered in TCP/IP stacks, patches for Windows TCP/IP vulnerabilities

Posted on 2021-02-12 by guenni

[German]Security researchers have found vulnerabilities in nine TCP/IP stacks (according to Amnesia:33), and issued a warning. Microsoft has closed three critical vulnerabilities in the Windows TCP/IP stack as of February 9, 2021, on the occasion of February Patchday.

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Windows 10: Reliability Update KB4023057 (Feb. 2021) released

Posted on 2021-02-12 by guenni

[German]Microsoft has re-released on Feb. 11, 2021 an updated version of the reliability update KB4023057 for machines with Windows 10. The update is supposed to improve the reliability of the Windows Update service.

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Posted in Update, Windows | Tagged , , | 2 Comments