Logging Monitoring

AlmaLinux 8 — opentest4j — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — opentest4j — 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-2020:5097 Upstream summary: Eclipse is an integrated development environment (IDE). The metadata for the eclipse:rhel8 module has been updated to remove the following unused profiles: c everything To check whether you have […]

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How to Use Skaffold for Kubernetes Dev on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Use Skaffold for Kubernetes Dev on FreeBSD 13

Introduction This guide explains how to Use Skaffold for Kubernetes Dev on FreeBSD 13 on FreeBSD 13. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for […]

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FreeBSD 13 — lasso — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — lasso — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: lasso — signature checking failure Related CVEs: CVE-2021-28091 Upstream summary: entrouvert reports: When AuthnResponse messages are not signed (which is permitted by the specifiation), all assertion's signatures should be checked, […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 5 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: sge — local root exploit in bundled rsh executable Upstream summary: Sun Microsystems reports: The SGE 6.0u7_1 release fixes a security bug which can allow malicious users to gain root […]

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FreeBSD 13 — timidity++ — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — timidity++ — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 June 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: TiMidity++ — Multiple vulnerabilities Related CVEs: CVE-2017-11546 CVE-2017-11547 CVE-2017-11549 Upstream summary: qflb.wu of DBAPPSecurity reports: Ihe insert_note_steps function in readmidi.c in TiMidity++ 2.14.0 can cause a denial of service(divide-by-zero error […]

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Ubuntu 20.04 — keepalived — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — keepalived — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 June 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5188-1 Related CVEs: CVE-2021-44225 Upstream summary: It was discovered that Keepalived incorrectly handled certain messages. An attacker could possibly use this issue to access-control bypass. Table of contents Symptom & […]

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

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2020-2379)

🟠 High   ⏱ 15–60 min  Last verified: 5 June 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-2379 Related CVEs: CVE-2020-12405 CVE-2020-12406 CVE-2020-12410 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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Common Problems 115401

Yum Metadata Checksum Mismatch from Repository Mirror Drift

🟡 Medium   ⏱ 5–30 min  Last verified: 5 June 2021 📖 ~1 min read 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 Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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How to Install Oracle JDK 8 on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Oracle JDK 8 on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up install oracle jdk 8 on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]

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

openSUSE Tumbleweed — veyon — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2020-29074 Upstream summary: scan.c in x11vnc 0.9.16 uses IPC_CREAT|0777 in shmget calls, which allows access by actors other than the current user. Table of contents […]

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