Linux

SLES 15 — bubblewrap — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — bubblewrap — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 July 2020 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2020-5291 CVE-2019-12439 Upstream summary: Bubblewrap (bwrap) before version 0.4.1, if installed in setuid mode and the kernel supports unprivileged user namespaces, then the `bwrap –userns2` […]

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Установка Composer в Ubuntu 20.04 [Краткое руководство] — step-by-step Linux tutorial on Progressive Robot

Установка Composer в Ubuntu 20.04 [Краткое руководство]

В этом кратком руководстве мы расскажем об установке Composer на сервере под управлением Ubuntu 20.04. Более детальный вариант настоящего руководства с подробным разъяснениями каждого шага можно найти в [статье «Установка и настройка Composer в Ubuntu…

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Oracle Linux 8 — dotnet3.1 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — dotnet3.1 — vulnerability — patch and remediation guide (ELSA-2020-2250)

🟠 High   ⏱ 15–60 min  Last verified: 25 July 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-2250 Related CVEs: CVE-2020-1108 CVE-2020-1161 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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openSUSE Tumbleweed — teeworlds — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — teeworlds — multiple vulnerabilities (3 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-2020:0557-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-20787 CVE-2020-12066 CVE-2014-9351 Upstream summary: Teeworlds before 0.7.4 has an integer overflow when computing a tilemap size. Table of contents Symptom & Impact Environment & […]

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How to Configure auditd System Auditing on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure auditd System Auditing on Debian 10

Introduction Deploying configure auditd system auditing on debian 10 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 Ensure Debian […]

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Common Problems 119077

Ubuntu 14.04 LTS – high CPU from kswapd due memory pressure

🟠 High   ⏱ 5–30 min  Last verified: 24 July 2020 Affected versions: Ubuntu 14.04 LTS Ubuntu 14.04 Ubuntu 14.04.6 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention […]

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Common Problems 117461

Ubuntu 20.04 LTS Netplan Apply Breaks Remote Connectivity

🟠 High   ⏱ 5–30 min  Last verified: 24 July 2020 Affected versions: 20.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]

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Gentoo Linux — net-vpn/openconnect — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-vpn/openconnect — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202006-15 Related CVEs: CVE-2020-12105 CVE-2020-12823 Upstream summary: Multiple vulnerabilities have been discovered in OpenConnect. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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