April 2021 - Page 56 of 66

AlmaLinux 8 — gtk2 — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — gtk2 — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2021:1586 Related CVEs: CVE-2019-13012 CVE-2020-13543 CVE-2020-13584 CVE-2020-16125 CVE-2020-9948 CVE-2020-9951 CVE-2020-9983 CVE-2021-1817  +4 more Upstream summary: GNOME is the default desktop environment of AlmaLinux. The following packages have been upgraded to a later […]

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Oracle Linux 8 — cups — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — cups — security and stability fixes — required update (ELSA-2023-7165)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7165 Related CVEs: CVE-2023-32324 CVE-2023-34241 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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Alpine Linux edge — newlib — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — newlib — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 4.1.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — newlib 4.1.0-r0 Related CVEs: CVE-2021-3420 Upstream summary: Alpine community repository for vedge ships newlib 4.1.0-r0 which addresses CVE-2021-3420. Table of contents Symptom & Impact Environment […]

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Common Problems 113914

RHEL 10 – GPG Signature Verification Fails for Repositories – Trusted Key Repair

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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Gentoo Linux — net-dns/pdns — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-dns/pdns — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202012-18 Related CVEs: CVE-2020-17482 Upstream summary: It was discovered that PowerDNS did not properly handle certain unknown records. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Common Problems 113615

Windows Server 2012 R2 — TLS cipher suite hardening breaks legacy API integrations on internal services — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Windows Server 2012 R2 📖 ~2 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 […]

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How to Configure Oracle Linux 8 for Machine Learning — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Oracle Linux 8 for Machine Learning

Introduction Setting up configure oracle linux 8 for machine learning on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Oracle Linux 8 for Machine Learning, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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openSUSE Tumbleweed — dpic — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — dpic — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2021-33388 CVE-2021-33390 CVE-2021-32420 CVE-2021-32421 CVE-2021-32422 Upstream summary: dpic 2021.04.10 has a Heap Buffer Overflow in themakevar() function in dpic.y Table of contents Symptom & Impact […]

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

FreeBSD 12 — coturn — 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: coturn — information leakage Related CVEs: CVE-2020-4067 Upstream summary: Felix Dörre reports: The issue is that STUN/TURN response buffer is not initialized properly. (CWE 665) This is a leak of […]

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