[German]Microsoft's Defender for Endpoint (an enterprise security platform, see Got lost in Defender? There is something like a Defender Cheat Sheet available) seems to have run a bit amok once again. Administrators reported that since April 20, 2022, Defender has suddenly deemed updates for the Google Chrome browser as malicious and quarantined them.
[German]Oracle's developers have released Virtualbox version 6.1.34 as of April 19, 2022 (while the changelog claims the release was on March 22, 2022, that's probably a typo). It is a maintenance update that is supposed to fix bugs of previous versions.
[German]Due to a bug in the UPNP function, the developers of the VLC Player had to add version 3.0.17.4. There is no changelog yet. The update is not yet offered in the VLC player. But the download is already available on the FTP server. (via)
[German]The developers of the Thunderbird email client released Thunderbird 91.8.0 (see Firefox 99.0 and 91.8.0esr released) on April 5, 2022, and then released 91.8.1 as a bug fix update on April 18, 2022. These are maintenance updates for the 91 development branch that contain various fixes.
[German]Microsoft has just announced that they are disabling support for the SMB1 protocol by default in the Windows 11 Home Insider builds. This is the final phase to finally put SMB1 support in Windows to bed and let it expire. The background is security considerations, and SMB2 as well as SMB3 are available. However, the problem will be that certain network connections are dependent on SMB1.
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Brief addendum from last week. Microsoft has released some Microsoft Security Update revisions for April 19, 2022, which are changes to the documentation of various security updates. Here is an uncommented overview.
[German]Users of Lenovo notebooks should react. Security vendor ESET has just announced that it has discovered three vulnerabilities (CVE-2021-3970, CVE-2021-3971, CVE-2021-3972) in the UEFI of Lenovo consumer notebooks that are rated as highly problematic from a security perspective. The exploit allows attackers to deploy and successfully execute UEFI malware such as LoJax or ESPecter on the affected devices.
[German]Security vendor Kaspersky has discovered a vulnerability in the encryption of the Yanlouwang ransomware. As a result of this vulnerability, the encryption of files can be cracked under certain circumstances. Anyway, a free decryptor for Yanlouwang ransomware is available. However, samples of encrypted files and their unencrypted originals are needed for decryption.
[German]A vulnerability CVE-2022-29072 (heap overflow) exists in the 7-Zip application up to version 21.07, which allows privilege escalation on Windows. This could allow an attacker to gain system privileges and then compromise the system at will. Here is some information about it. Addendum: Seems it was a hoax or a mistake. An extension of privileges, as originally stated by the finder, is (probably) not possible.
Short addendum from last week. Microsoft has released some Microsoft Security Update Revisions for April 15, 2022, which are changes to the documentation of various security updates in GRUB as well as in Power BI Report Server. Here is an uncommented overview.
MVP:
2013 – 2016
WIMVP:
2017 – 2020
