chris

openSUSE Tumbleweed — zsh — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — zsh — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:0735-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-45444 CVE-2018-0502 CVE-2018-1100 CVE-2018-13259 CVE-2019-20044 CVE-2018-1083 CVE-2018-1071 Upstream summary: In zsh before 5.8.1, an attacker can achieve code execution if they control a command output […]

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Ubuntu 20.04 — freeimage — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — freeimage — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 May 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6586-1 Related CVEs: CVE-2019-12211 CVE-2019-12213 CVE-2020-21427 CVE-2020-21428 CVE-2020-22524 Upstream summary: It was discovered that FreeImage incorrectly handled certain memory operations. If a user were tricked into opening a crafted TIFF […]

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How to Configure AIX Trusted Computing Base (TCB) on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure AIX Trusted Computing Base (TCB) on IBM AIX 7.2

Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure aix trusted computing base (tcb) on ibm aix […]

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Arch Linux — drupal — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — drupal — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201804-10 Related CVEs: CVE-2018-7602 CVE-2018-7600 CVE-2021-33829 CVE-2016-9452 CVE-2016-9450 CVE-2016-9449 Upstream summary: Type: arbitrary command execution. Status: Fixed. Affected: 8.5.2-1. Fixed in: 8.5.3-1. Group: AVG-679. Table of contents Symptom & Impact […]

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SLES 12 — libtirpc3 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libtirpc3 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 20 May 2021 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:2025-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-46828 Upstream summary: In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are […]

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How to Schedule Automated Tasks with cron and anacron on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Schedule Automated Tasks with cron and anacron on RHEL 7

How to Schedule Automated Tasks with cron and anacron on RHEL 7 Automation is at the heart of effective Linux system administration. Red Hat Enterprise Linux 7 provides two complementary scheduling systems: cron for tasks that need to run at precise times on continuously running servers, and anacron for tasks that must eventually run on […]

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AlmaLinux 8 — spacewalk-oscap — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — spacewalk-oscap — 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-2019:3355 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 […]

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Oracle Linux 8 — /var/run/rhnsd.pid file not readable after starting Spacewalk daemon — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — /var/run/rhnsd.pid file not readable after starting Spacewalk daemon

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 29531930 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 […]

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