Linux

Alpine Linux 3.20 — libspf2 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — libspf2 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 1.2.11-r3 📖 ~4 min read  •  Source: Alpine secdb entry — libspf2 1.2.11-r3 Related CVEs: CVE-2023-42118 CVE-2021-33912 CVE-2021-33913 CVE-2021-20314 Upstream summary: Alpine main repository for vv3.20 ships libspf2 1.2.11-r3 which addresses CVE-2023-42118. Table of contents Symptom […]

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Alpine Linux 3.19 — coreutils — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — coreutils — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 9.4-r2 📖 ~4 min read  •  Source: Alpine secdb entry — coreutils 9.4-r2 Related CVEs: CVE-2024-0684 CVE-2017-18018 Upstream summary: Alpine main repository for vv3.19 ships coreutils 9.4-r2 which addresses CVE-2024-0684. Table of contents Symptom & Impact […]

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Debian 12 — catimg — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — catimg — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 September 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-13794 Upstream summary: A heap-based buffer overflow exists in stbi__bmp_load_cont in stb_image.h in catimg 2.4.0. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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Debian 12 — slirp — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — slirp — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 September 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-7039 CVE-2020-8608 Upstream summary: tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC DCC commands in EMU_IRC. This can cause […]

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Ubuntu 20.04 — vlc — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — vlc — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 September 2024 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7243-1 Related CVEs: CVE-2024-46461 CVE-2023-47359 CVE-2023-47360 CVE-2019-19721 CVE-2020-13428 CVE-2021-25801 CVE-2021-25802 CVE-2021-25803  +2 more Upstream summary: It was discovered that VLC incorrectly handled memory when reading an MMS stream. An attacker […]

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Alpine Linux 3.18 — mumble — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — mumble — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.3.4-r0 📖 ~4 min read  •  Source: Alpine secdb entry — mumble 1.3.4-r0 Related CVEs: CVE-2021-27229 CVE-2018-20743 Upstream summary: Alpine community repository for vv3.18 ships mumble 1.3.4-r0 which addresses CVE-2021-27229. Table of contents Symptom & Impact […]

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

Oracle Linux 9 — emacs — vulnerability — patch and remediation guide (ELSA-2025-4787)

🟡 Medium   ⏱ 10–30 min  Last verified: 9 September 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-4787 Related CVEs: CVE-2024-53920 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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Debian 12 — xen — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — xen — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 September 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-2938 CVE-2010-4255 CVE-2011-1166 CVE-2011-1583 CVE-2011-1898 CVE-2011-3131 CVE-2011-3262 CVE-2011-4111  +12 more Upstream summary: arch/x86/hvm/vmx/vmcs.c in the virtual-machine control structure (VMCS) implementation in the Linux kernel 2.6.18 on Red Hat […]

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Common Problems 124627

Oracle Linux 9 – Common Problem 017 – Diagnosis and Fix

🟢 Low   ⏱ 5–30 min  Last verified: 8 September 2024 Affected versions: Oracle Linux 9 📖 ~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 Errors […]

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Common Problems 120096

Debian 12 High I/O Wait Caused by Swap Thrashing

🟠 High   ⏱ 5–30 min  Last verified: 8 September 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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