chris

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

openSUSE Tumbleweed — jsr — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:1357-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-37714 Upstream summary: jsoup is a Java library for working with HTML. Those using jsoup versions prior to 1.14.2 to parse untrusted HTML or XML […]

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Ubuntu 20.04 — vino — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — vino — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 January 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4636-1 Related CVEs: CVE-2020-25708 CVE-2014-6053 CVE-2018-7225 CVE-2019-15681 CVE-2020-14397 CVE-2020-14402 CVE-2020-14403 CVE-2020-14404 Upstream summary: It was discovered that LibVNCServer incorrectly handled certain internals. An attacker could possibly use this issue to […]

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How to Use Docker Volumes and Bind Mounts on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Use Docker Volumes and Bind Mounts on RHEL 8

Persistent data is one of the most important concerns when running containers, since a container’s writable layer is destroyed when the container is removed. Docker provides three storage mechanisms to address this: named volumes managed by Docker itself, bind mounts that link a host directory directly into a container, and tmpfs mounts for ephemeral in-memory […]

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Oracle Linux 8 — Podman Issues — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Podman Issues (8-PODMAN-ISSUES)

🟠 High   ⏱ 5–30 min  Last verified: 28 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNB-ol8-issues-podman 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 […]

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Common Problems 118515

snapd Installation or Refresh Failures on Ubuntu 16.04

🟡 Medium   ⏱ 5–30 min  Last verified: 28 January 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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Common Problems 118042

Ubuntu 18.04 LTS sudoers misconfiguration locks out admin privileges

🟡 Medium   ⏱ 5–30 min  Last verified: 28 January 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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Common Problems 117592

Ubuntu 20.04 LTS Swap Thrashing Under Memory Pressure

🟠 High   ⏱ 5–30 min  Last verified: 28 January 2021 Affected versions: 20.04 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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Arch Linux — python-httplib2 — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — python-httplib2 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202102-35 Related CVEs: CVE-2021-21240 Upstream summary: Type: denial of service. Status: Fixed. Affected: 0.18.1-4. Fixed in: 0.19.0-1. Group: AVG-1546. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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