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Category Archives: Linux
Vulnerability CVE-2021-3773 in OpenVPN-Clients (Linux, FreeBSD)
[German]A privilege escalation vulnerability CVE-2021-3773 exists in the Linux and FreeBSD OpenVPN clients. The issue occurs in the OpenVPN use of Netfilter for NAT on Linux and FreeBSD 13, OpenVPN, and natd. A detailed technical report can be found on … Continue reading
LemonDuck and LemonCat malware boost activity
[German]LemonDuck and LemonCat is malware that both acts as a bot and mines crypto-money. LemonDuck can run on different platforms (Linux, Windows), threatening machines on corporate networks. According to Microsoft, this malware has been poorly documented so far, which is … Continue reading
Sequoia: LPE Vulnerability CVE-2021-33909 in Linux
[German]Security researchers from Qualsys have discovered a Local Privilege Escalation (LPE) vulnerability CVE-2021-33909 in the filesystem layer of the Linux kernel. In addition, a second vulnerability CVE-2021-33910 has been discovered. Linux distributions such as Debian, Fedora and Ubuntu are vulnerable … Continue reading
Linux Mint 20.2
[German]The team of maintainers of Linux Mint have just announced the availability of Mint 20.2. Linux Mint 20.2 (Uma) is a Long-Term Support release that will be supported until 2025. It comes with updated software and brings refinements and many … Continue reading
DarkRadiation Ransomware targets Linux (Red Hat, Debian & Co.)
[German]A ransomware called DarkRadiation targets Linux systems from Red Hat, CentOS or Debian-based distributions. Security vendor Trend Micro points this out in a new blog post. The malware does so using tools to detect the environment and then spread laterally … Continue reading
Why ISL Online: Critical factors when choosing a remote desktop solution
[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...
Microsoft switches internally to Linux
Microsoft internally wants to change its systems (servers, but also clients) to Linux in the medium future. So Windows will be phased out in the long run – they are only considering to port a part of the GUI and … Continue reading
Spectre Exploits for Linux and Windows found on VirusTotal
[German] A security researcher has found working exploits for Linux and Windows on VirusTotal that exploit the Spectre vulnerability discovered in CPUs in 2018. But the exploits only work against unpatched systems, are already detected by virus scanners, and have … Continue reading
Linux OS secretly installs Microsoft repo on Raspberry Pi
[German]Nasty story or technical necessary? In the Raspberry Pi community, there is a shit storm, after an update of the Raspbian operating system secretly installed a Microsoft repo. This repo triggers a ping on a Microsoft server with every update.
Linux: Bug in Sudo allows privilege escalation
[German]Security researchers at Qualsys have discovered a vulnerability (CVE-2021-3156) in the BSD/Linux Sudo command. Due to a heap overflow, attackers with normal privileges could achieve privilege escalation to root. However, updates for the vulnerability are now available from major Linux … Continue reading
Chrome 88.0.4324.96 fixes 36 vulnerabilities
[German]Google's developers have updated the Chrome browser to version 88.0.4324.96 in the desktop version for Linux, macOS and Windows as of January 19, 2020. This security update fixes 36 vulnerabilities in the older browser versions.