Systemd Services

Arch Linux — firejail — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — firejail — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202102-26 Related CVEs: CVE-2021-26910 Upstream summary: Type: privilege escalation. Status: Fixed. Affected: 0.9.64.2-1. Fixed in: 0.9.64.4-1. Group: AVG-1545. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

Read more
Oracle Linux 8 — tcpdump — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — tcpdump — security and stability fixes — required update (ELSA-2021-4236)

🟢 Low   ⏱ 5–15 min  Last verified: 3 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4236 Related CVEs: CVE-2020-8037 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
AlmaLinux 8 — intel-cmt-cat — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — intel-cmt-cat — 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-2021:1696 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 […]

Read more
How to Profile CPU with tprof on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Profile CPU with tprof 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 profile cpu with tprof on ibm aix 7.2 on […]

Read more
AlmaLinux 8 — rasdaemon — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — rasdaemon — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2022:1990 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 […]

Read more
IBM AIX 7.2 — CVE-2021-20562 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-20562 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 3 June 2021 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-20562, IBM Support Bulletin CVE: CVE-2021-20562 NVD summary: IBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 5.2.6.5_3 and 6.1.0.0 through 6.1.0.2 vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary […]

Read more
FreeBSD 13 — gnutls-devel — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — gnutls-devel — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: gnutls — multiple certificate verification issues Related CVEs: CVE-2006-4790 CVE-2009-1415 CVE-2009-1416 CVE-2009-1417 CVE-2009-2730 CVE-2012-1569 CVE-2012-1573 CVE-2014-0092  +1 more Upstream summary: GnuTLS project reports: A vulnerability was discovered that affects the […]

Read more
How to Audit Security with Lynis on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Audit Security with Lynis on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up audit security with lynis on freebsd 13 on FreeBSD 13 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]

Read more
Ubuntu 18.04 — linux-azure — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — linux-azure — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 3 June 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4325-1 Related CVEs: CVE-2019-19046 CVE-2020-8428 CVE-2019-19053 CVE-2019-19056 CVE-2019-19058 CVE-2019-19059 CVE-2019-19066 CVE-2019-19068  +12 more Upstream summary: It was discovered that the IPMI message handler implementation in the Linux kernel did not […]

Read more
CHAT