Linux

Debian 11 — tuxpaint — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — tuxpaint — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 August 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-3340 Upstream summary: The tuxpaint-import.sh script in Tux Paint (tuxpaint) 0.9.14 and earlier creates temporary files insecurely, with unknown impact and attack vectors. Table of contents Symptom & […]

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Debian 11 — duck — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — duck — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 August 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-1239 Upstream summary: duck before 0.10 did not properly handle loading of untrusted code from the current directory. Table of contents Symptom & Impact Environment & Reproduction Root […]

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SLES 15 — apache-pdfbox — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — apache-pdfbox — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 18 August 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2018:3318-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-11797 CVE-2021-27807 CVE-2021-27906 CVE-2016-2175 CVE-2018-8036 Upstream summary: In Apache PDFBox 1.8.0 to 1.8.15 and 2.0.0RC1 to 2.0.11, a carefully crafted PDF file can trigger an […]

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Oracle Linux 8 — ELSA-2022-0672-1: ruby:2.5 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — ELSA-2022-0672-1: ruby:2.5 — vulnerability — patch and remediation guide (ELSA-2022-0672-1)

🟡 Medium   ⏱ 10–30 min  Last verified: 18 August 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-0672-1 Related CVEs: CVE-2021-32066 CVE-2021-31799 CVE-2021-31810 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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AlmaLinux 8 — logrotate — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — logrotate — 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-2020:4538 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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How to Configure DRBD for High-Availability Storage on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure DRBD for High-Availability Storage on RHEL 8

DRBD (Distributed Replicated Block Device) provides synchronous, block-level replication between two Linux servers, making it a foundational technology for high-availability storage clusters. Often described as “RAID 1 over the network,” DRBD mirrors every write to both nodes in real time, so either node can take over if the other fails. On RHEL 8, DRBD is […]

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

Oracle Linux 8 — Networking Issues (8-NETWORKING-ISSUES)

🟠 High   ⏱ 5–30 min  Last verified: 17 August 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNB-ol8-issues-network 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 119124

Ubuntu 14.04 LTS Docker Daemon Fails Due to cgroup Issues

🟡 Medium   ⏱ 5–30 min  Last verified: 17 August 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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Debian 11 — bitlbee — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — bitlbee — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 17 August 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-3920 CVE-2008-3969 CVE-2012-1187 CVE-2016-10188 CVE-2016-10189 CVE-2017-5668 Upstream summary: Unspecified vulnerability in BitlBee before 1.2.2 allows remote attackers to "recreate" and "hijack" existing accounts via unspecified vectors. Table of […]

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