Systemd Services

FreeBSD 13 — pngcheck — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — pngcheck — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pngcheck — Buffer-overrun vulnerability Upstream summary: The libpng project reports: pngcheck versions 3.0.0 and earlier have a pair of buffer-overrun bugs related to the sPLT and PPLT chunks (the latter […]

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How to Configure Dynamic LPAR (DLPAR) on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Dynamic LPAR (DLPAR) on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure dynamic lpar (dlpar) on ibm aix 7.1 on […]

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Ubuntu 20.04 — json-c — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — json-c — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 June 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4360-4 Related CVEs: CVE-2020-12762 https://launchpad.net/bugs/1878723 Upstream summary: USN-4360-1 fixed a vulnerability in json-c. The security fix introduced a memory leak that was reverted in USN-4360-2 and USN-4360-3. This update provides […]

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How to Use Python Virtual Environments on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Use Python Virtual Environments on RHEL 8

Python virtual environments solve the problem of conflicting package versions across projects by giving each application its own isolated Python installation and package tree. On RHEL 8, the venv module is included with every Python 3 installation, so no additional packages are required to get started. This tutorial covers creating and activating virtual environments, managing […]

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SLES 15 — pacemaker — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — pacemaker — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 June 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:3054-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-25654 CVE-2018-16877 CVE-2018-16878 CVE-2019-3885 Upstream summary: An ACL bypass flaw was found in pacemaker. An attacker having a local account on the cluster and in […]

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openSUSE Tumbleweed — python38-httpx — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python38-httpx — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2021-41945 Upstream summary: Encode OSS httpx < 0.23.0 is affected by improper input validation in `httpx.URL`, `httpx.Client` and some functions using `httpx.URL.copy_with`. Table of contents […]

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

Oracle Linux 8 — libexif — vulnerability — patch and remediation guide (ELSA-2020-5393)

🟠 High   ⏱ 15–60 min  Last verified: 9 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-5393 Related CVEs: CVE-2020-0452 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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FreeBSD 13 — libXt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — libXt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: xorg — protocol handling issues in X Window System client libraries Related CVEs: CVE-2013-1981 CVE-2013-1982 CVE-2013-1983 CVE-2013-1984 CVE-2013-1985 CVE-2013-1986 CVE-2013-1987 CVE-2013-1988  +12 more Upstream summary: freedesktop.org reports: Ilja van Sprundel, […]

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Oracle Linux 8 — bind security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — bind security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-4500)

🟡 Medium   ⏱ 10–30 min  Last verified: 8 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4500 Related CVEs: CVE-2020-8623 CVE-2020-8622 CVE-2020-8619 CVE-2020-8624 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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