Linux

Oracle Linux 9 — 18 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — 18 — vulnerability — patch and remediation guide (ELSA-2023-3577)

🟠 High   ⏱ 15–60 min  Last verified: 20 January 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-3577 Related CVEs: CVE-2023-31130 CVE-2023-32067 CVE-2023-31147 CVE-2023-31124 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 121613

Debian 9: kubelet not starting due to cgroup driver mismatch

🟠 High   ⏱ 5–30 min  Last verified: 19 January 2023 Affected versions: Debian 9 📖 ~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 114628

RHEL 9 emergency mode triggered by fstab mount errors

🟡 Medium   ⏱ 5–30 min  Last verified: 19 January 2023 📖 ~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 116962

Ubuntu 22.04 black screen after NVIDIA driver update

🟡 Medium   ⏱ 5–30 min  Last verified: 19 January 2023 📖 ~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 — jtidy — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — jtidy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 January 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2023-34623 Upstream summary: An issue was discovered jtidy thru r938 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic […]

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Ubuntu 18.04 — snakeyaml — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — snakeyaml — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 January 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7368-1 Related CVEs: CVE-2017-18640 CVE-2022-25857 CVE-2022-38749 CVE-2022-38750 CVE-2022-38751 Upstream summary: It was discovered that SnakeYAML incorrectly handled recursive entity references. An attacker could possibly use this issue to cause SnakeYAML […]

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

Alpine Linux edge — graphicsmagick — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.3.38-r0 📖 ~4 min read  •  Source: Alpine secdb entry — graphicsmagick 1.3.38-r0 Related CVEs: CVE-2022-1270 CVE-2020-12672 CVE-2020-10938 CVE-2018-18544 CVE-2018-20189 CVE-2019-7397 CVE-2019-11473 CVE-2019-11474  +12 more Upstream summary: Alpine community repository for vedge ships graphicsmagick 1.3.38-r0 which […]

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Ubuntu 22.04 — zlib — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — zlib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 January 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5570-2 Related CVEs: CVE-2022-37434 Upstream summary: USN-5570-1 fixed a vulnerability in zlib. This update provides the corresponding update for Ubuntu 22.04 LTS and Ubuntu 20.04 LTS. Original advisory details: Evgeny […]

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Ubuntu 20.04 — gsasl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — gsasl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 January 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6169-1 Related CVEs: CVE-2022-2469 Upstream summary: It was discovered that GNU SASL's GSSAPI server could make an out-of-bounds reads if given specially crafted GSS-API authentication data. A remote attacker could […]

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