January 2021 - Page 51 of 69

SLES 15 — openconnect — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — openconnect — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2013-7098 CVE-2012-6128 CVE-2019-16239 CVE-2020-12105 CVE-2020-12823 CVE-2018-20319 CVE-2012-3291 Upstream summary: OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on […]

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How to Use Python Virtual Environments (venv) on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Use Python Virtual Environments (venv) on RHEL 9

Python virtual environments solve a fundamental dependency management problem: different projects require different versions of the same library, and installing everything system-wide leads to version conflicts. A virtual environment is a self-contained directory containing a Python interpreter copy and a site-packages directory isolated from the system Python. Each project gets its own virtual environment with […]

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Oracle Linux 8 — nodejs:14 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nodejs:14 — security and stability fixes — required update (ELSA-2022-6448)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6448 Related CVEs: CVE-2022-32213 CVE-2022-32212 CVE-2022-33987 CVE-2022-32215 CVE-2022-32214 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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Common Problems 118117

Ubuntu 18.04 LTS – cron jobs fail silently due to environment path mismatch – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 Affected versions: Ubuntu 18.04 LTS 📖 ~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 […]

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Common Problems 114595

RHEL 9: Postfix Mail Queue Stuck

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2026 📖 ~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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Common Problems 113901

RHEL 10 – dnf module stream conflict blocks application install – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: RHEL 10 📖 ~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 & […]

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