Systemd Services

FreeBSD 13 — pivot-weblog — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — pivot-weblog — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pivot-weblog — file deletion vulnerability Upstream summary: Secunia reports: A vulnerability has been discovered in Pivot, which can be exploited by malicious people to delete certain files. Input passed to […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 19 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: lshell — Shell autocomplete reveals forbidden directories Upstream summary: lshell reports: The autocomplete feature allows users to list directories, while they do not have access to those paths (issue #109). […]

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Debian 10 — x11vnc — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — x11vnc — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 June 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-29074 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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How to Install Cassandra on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Cassandra on FreeBSD 13

Introduction How to Install Cassandra on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, and […]

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Ubuntu 20.04 — ring — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — ring — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 19 June 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6422-1 Related CVEs: CVE-2021-37706 CVE-2021-43299 CVE-2021-43300 CVE-2021-43301 CVE-2021-43302 CVE-2021-43303 CVE-2021-43804 CVE-2021-43845  +12 more Upstream summary: It was discovered that Ring incorrectly handled certain inputs. If a user or an automated […]

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Oracle Linux 8 — grub2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — grub2 — vulnerability — patch and remediation guide (ELSA-2021-0696)

🟡 Medium   ⏱ 10–30 min  Last verified: 19 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-0696 Related CVEs: CVE-2020-27779 CVE-2020-27749 CVE-2021-20225 CVE-2020-25632 CVE-2020-25647 CVE-2021-20233 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2022-9199)

🟠 High   ⏱ 15–60 min  Last verified: 19 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9199 Related CVEs: CVE-2021-26341 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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AlmaLinux 8 — osinfo-db-tools — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — osinfo-db-tools — 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-2021:1939 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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Debian 9 — exim4 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — exim4 — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 June 2021 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-1000369 CVE-2017-16943 CVE-2018-6789 CVE-2019-10149 CVE-2019-13917 CVE-2019-15846 CVE-2020-12783 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution […]

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How to Install Ruby with rbenv on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Ruby with rbenv on RHEL 7

How to Install Ruby with rbenv on RHEL 7 Ruby is a dynamic, expressive programming language favored for its clean syntax, productivity-oriented design, and thriving ecosystem. While RHEL 7’s system repositories provide a version of Ruby, it is typically outdated and may conflict with modern applications and gems that require a specific Ruby release. The […]

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