Linux

Ubuntu 18.04 — libvncserver — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — libvncserver — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • January 20, 2020
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 20 January 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4636-1 Related CVEs: CVE-2020-25708 CVE-2019-20839 CVE-2019-20840 CVE-2020-14396 CVE-2020-14397 CVE-2020-14398 CVE-2020-14399 CVE-2020-14400  +12 more Upstream summary: It was discovered that LibVNCServer incorrectly handled certain internals. An attacker could possibly use this […]

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How To Install Node.js on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Install Node.js on Ubuntu 18.04

  • January 20, 2020
  • Linux
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Node.js is a JavaScript platform for general-purpose programming that allows users to build network applications quickly. In this guide, we’ll show you how to get started with Node.js on an Ubuntu 18.04 server.

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How to Encrypt Disk Partitions with LUKS on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Encrypt Disk Partitions with LUKS on Debian 10

  • January 20, 2020
  • Linux
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Introduction This guide explains how to Encrypt Disk Partitions with LUKS on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with […]

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SLES 12 — wicked — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — wicked — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • January 20, 2020
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 20 January 2020 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2020:800-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-18902 CVE-2019-18903 CVE-2020-7216 CVE-2020-7217 Upstream summary: A Use After Free vulnerability in wicked of SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 15; openSUSE […]

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SLES 15 — libexif12 — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libexif12 — multiple vulnerabilities (19 CVEs) — patch and remediation guide

  • January 20, 2020
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 20 January 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:1534-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-13112 CVE-2020-0452 CVE-2019-9278 CVE-2020-13113 CVE-2020-0181 CVE-2020-0198 CVE-2012-2812 CVE-2012-2813  +11 more Upstream summary: An issue was discovered in libexif before 0.6.22. Several buffer over-reads in EXIF […]

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How to Set Up Uptime Kuma for Service Monitoring on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up Uptime Kuma for Service Monitoring on RHEL 8

  • January 20, 2020
  • Linux
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Uptime Kuma is a self-hosted monitoring tool that provides a clean web interface for tracking the availability of HTTP endpoints, TCP ports, DNS records, and ping targets. On RHEL 8, you can deploy it quickly using Docker or run it directly with Node.js managed by PM2. This tutorial walks through both installation methods, configuring monitors, […]

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How to Encrypt Disk Partitions with LUKS on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Encrypt Disk Partitions with LUKS on Debian 9

  • January 19, 2020
  • Linux
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Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up encrypt disk partitions with luks on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully […]

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How to Automate Debian 10 Server Provisioning with Ansible — step-by-step Debian 10 tutorial on Progressive Robot

How to Automate Debian 10 Server Provisioning with Ansible

  • January 19, 2020
  • Linux
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Introduction Deploying automate debian 10 server provisioning with ansible on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You will […]

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Oracle Linux 8 — zziplib — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — zziplib — vulnerability — patch and remediation guide (ELSA-2024-3127)

  • January 19, 2020
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 19 January 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-3127 Related CVEs: CVE-2020-18770 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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