Package Management

How to Install containerd as a Container Runtime on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install containerd as a Container Runtime on RHEL 8

Containerd is a lightweight, high-performance container runtime that serves as the default container engine for Kubernetes since Docker was deprecated as a direct runtime in Kubernetes 1.24. On RHEL 8, installing containerd from the Docker CE repository gives you a stable, well-supported runtime that integrates cleanly with kubeadm and supports the CRI (Container Runtime Interface) […]

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SLES 15 — xrdb — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — xrdb — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SA:2011:016 (see also SUSE bugzilla) Related CVEs: CVE-2011-0465 Upstream summary: xrdb.c in xrdb before 1.0.9 in X.Org X11R7.6 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in a […]

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Oracle Linux 8 — freeradius:3.0 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — freeradius:3.0 — vulnerability — patch and remediation guide (ELSA-2020-1672)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1672 Related CVEs: CVE-2019-13456 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 12 — ja-w3m-img — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ja-w3m-img — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: w3m – multiple vulnerabilities Related CVEs: CVE-2006-6772 CVE-2016-9422 CVE-2016-9423 CVE-2016-9424 CVE-2016-9425 CVE-2016-9426 CVE-2016-9428 CVE-2016-9429  +12 more Upstream summary: Tatsuya Kinoshita reports: CVE-2018-6196 * table.c: Prevent negative indent value in feed_table_block_tag(). […]

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How to Harden PHP on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Harden PHP on RHEL 8

PHP runs on millions of web servers, but a default installation leaves many dangerous settings enabled that attackers can exploit. On RHEL 8, hardening PHP through /etc/php.ini is one of the most impactful steps you can take to protect your application without touching a single line of code. This tutorial covers the most important security-oriented […]

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openSUSE Tumbleweed — libFS6 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libFS6 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2013:1103-1 (see also SUSE bugzilla) Related CVEs: CVE-2013-1996 Upstream summary: X.org libFS 1.0.4 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to […]

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FreeBSD 12 — global — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — global — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: global — gozilla vulnerability Related CVEs: CVE-2017-17531 Upstream summary: MITRE reports: gozilla.c in GNU GLOBAL 4.8.6 does not validate strings before launching the program specified by the BROWSER environment variable, […]

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How to Set Up NFS Server and Client on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up NFS Server and Client on Debian 9

Introduction How to Set Up NFS Server and Client on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from […]

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FreeBSD 12 — php5-wddx — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php5-wddx — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2007-0905 CVE-2007-0906 CVE-2007-0907 CVE-2007-0908 CVE-2007-0909 CVE-2007-0910 CVE-2007-0988 CVE-2007-1001 Upstream summary: The PHP development team reports: Security Enhancements and Fixes in PHP 5.2.2 and PHP […]

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FreeBSD 12 — imp — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — imp — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: horde — Phishing and Cross-Site Scripting Vulnerabilities Upstream summary: Secunia reports: Some vulnerabilities have been reported in Horde, which can be exploited by malicious people to conduct phishing and cross-site […]

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