Linux

Debian 11 — v86d — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — v86d — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-1070 Upstream summary: v86d before 0.1.10 do not verify if received netlink messages are sent by the kernel. This could allow unprivileged users to manipulate the video mode […]

Read more
How To Install R on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Install R on Ubuntu 20.04

An open-source programming language, R is widely used for performing data analysis and statistical computing. Supported by the R Foundation for Statistical Computing, it is an increasingly popular and extensible language with an active community. R offers many user-generated…

Read more
Arch Linux — aspnet-runtime — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — aspnet-runtime — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202106-37 Related CVEs: CVE-2021-31957 Upstream summary: Type: denial of service. Status: Fixed. Affected: 5.0.6.sdk203-1. Fixed in: 5.0.7.sdk204-1. Group: AVG-2046. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

Read more
openSUSE Tumbleweed — quagga — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — quagga — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2018:0473-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-5379 CVE-2021-44038 CVE-2018-5381 CVE-2006-2223 CVE-2007-1995 CVE-2013-2236 CVE-2016-1245 CVE-2016-2342  +11 more Upstream summary: The Quagga BGP daemon (bgpd) prior to version 1.2.3 can double-free memory when […]

Read more
Debian 11 — catfish — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — catfish — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-2093 CVE-2014-2094 CVE-2014-2095 CVE-2014-2096 Upstream summary: Untrusted search path vulnerability in Catfish through 0.4.0.3 allows local users to gain privileges via a Trojan horse catfish.py in the current […]

Read more
Ubuntu 20.04 — firejail — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — firejail — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 January 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5141-1 Related CVEs: CVE-2021-26910 Upstream summary: Roman Fiedler discovered that a race condition existed in Firejail when using OverlayFS to prevent writes to the underlying file system. A local attacker […]

Read more
How to Configure Automatic Security Updates on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Automatic Security Updates on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure automatic security updates on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Automatic Security Updates on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

Read more
AlmaLinux 8 — fio — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — fio — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:4738 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

Read more
AlmaLinux 8 — lucene — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — lucene — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:5097 Upstream summary: Eclipse is an integrated development environment (IDE). The metadata for the eclipse:rhel8 module has been updated to remove the following unused profiles: c everything To check whether you have […]

Read more
Amazon Linux 2 — lynx — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — lynx — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2145 Related CVEs: CVE-2021-38165 Upstream summary: Lynx through 2.8.9 mishandles the userinfo subcomponent of a URI, which allows remote attackers to discover cleartext credentials because they may appear in SNI […]

Read more
CHAT