Linux

Alpine Linux 3.19 — opensc — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — opensc — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 0.24.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — opensc 0.24.0-r0 Related CVEs: CVE-2023-40660 CVE-2023-40661 CVE-2023-4535 CVE-2020-26570 CVE-2020-26571 CVE-2020-26572 CVE-2019-6502 CVE-2019-15945  +12 more Upstream summary: Alpine community repository for vv3.19 ships opensc 0.24.0-r0 which […]

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Oracle Linux 9 — socat — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — socat — vulnerability — patch and remediation guide (ELSA-2025-10353)

🟡 Medium   ⏱ 10–30 min  Last verified: 17 November 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-10353 Related CVEs: CVE-2024-54661 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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openSUSE Leap 15.5 — go1.19 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — go1.19 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:1963-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-29402 CVE-2023-29404 CVE-2023-29405 CVE-2023-29409 CVE-2023-29403 Upstream summary: The go command may generate unexpected code at build time when using cgo. This may result in […]

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CentOS Stream 9 — dpdk — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — dpdk — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 17 November 2024 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:0210 Related CVEs: CVE-2024-11614 CVE-2021-3839 CVE-2022-2132 CVE-2022-28199 Upstream summary: The dpdk packages provide the Data Plane Development Kit, which is a set of libraries and drivers for fast packet processing in […]

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Oracle Linux 9 — kernel — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel — security and stability fixes — required update (ELSA-2022-5249)

🟠 High   ⏱ 15–60 min  Last verified: 16 November 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5249 Related CVEs: CVE-2022-1966 CVE-2022-27666 CVE-2022-1729 CVE-2022-1012 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Common Problems 120151

Debian 12 – Apache fails to start because port 80 is already in use

🟠 High   ⏱ 5–30 min  Last verified: 16 November 2024 Affected versions: Debian 12 📖 ~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 117486

Ubuntu 20.04 No Sound Output

🟡 Medium   ⏱ 5–30 min  Last verified: 16 November 2024 📖 ~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 116909

Ubuntu 22.04 LTS – apt update shows NO_PUBKEY for repository signatures

🟠 High   ⏱ 5–30 min  Last verified: 16 November 2024 Affected versions: Ubuntu 22.04 LTS Ubuntu 22.04 Ubuntu 22.04.4 📖 ~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 […]

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Common Problems 116490

Ubuntu 24.04 LTS – Snap downloads are stuck or very slow – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 16 November 2024 Affected versions: Ubuntu 24.04 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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Alpine Linux 3.20 — lxc — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — lxc — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 5.0.1-r2 📖 ~4 min read  •  Source: Alpine secdb entry — lxc 5.0.1-r2 Related CVEs: CVE-2022-47952 CVE-2019-5736 CVE-2018-6556 Upstream summary: Alpine main repository for vv3.20 ships lxc 5.0.1-r2 which addresses CVE-2022-47952. Table of contents Symptom & […]

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