Linux

Oracle Linux 9 — python-wheel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — python-wheel — vulnerability — patch and remediation guide (ELSA-2023-6712)

🟡 Medium   ⏱ 10–30 min  Last verified: 10 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6712 Related CVEs: CVE-2022-40898 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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Oracle Linux 8 — open-vm-tools — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — open-vm-tools — vulnerability — patch and remediation guide (ELSA-2023-7265)

🟠 High   ⏱ 15–60 min  Last verified: 10 April 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7265 Related CVEs: CVE-2023-34058 CVE-2023-34059 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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Oracle Linux 8 — expat — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — expat — vulnerability — patch and remediation guide (ELSA-2024-1615)

🟡 Medium   ⏱ 10–30 min  Last verified: 10 April 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-1615 Related CVEs: CVE-2023-52425 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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Oracle Linux 9 — git — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — git — security and stability fixes — required update (ELSA-2023-2319)

🟡 Medium   ⏱ 10–30 min  Last verified: 9 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2319 Related CVEs: CVE-2022-39253 CVE-2022-24765 CVE-2022-29187 CVE-2022-39260 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 117548

Ubuntu 20.04 LTS – netplan apply fails due to YAML syntax errors

🟠 High   ⏱ 5–30 min  Last verified: 9 April 2023 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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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Amazon Linux 2023 — libksba — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — libksba — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2023-088 Related CVEs: CVE-2022-3515 Upstream summary: A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for […]

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Alpine Linux edge — rxvt-unicode — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — rxvt-unicode — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 9.31-r0 📖 ~4 min read  •  Source: Alpine secdb entry — rxvt-unicode 9.31-r0 Related CVEs: CVE-2022-4170 CVE-2021-33477 Upstream summary: Alpine community repository for vedge ships rxvt-unicode 9.31-r0 which addresses CVE-2022-4170. Table of contents Symptom & Impact […]

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Debian 11 — cyrus-sasl2 — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — cyrus-sasl2 — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 April 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2002-1347 CVE-2004-0884 CVE-2005-0373 CVE-2006-1721 CVE-2009-0688 CVE-2013-4122 CVE-2019-19906 CVE-2022-24407 Upstream summary: Multiple buffer overflows in Cyrus SASL library 2.1.9 and earlier allow remote attackers to cause a denial of […]

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Ubuntu 22.04 — libnet-cidr-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libnet-cidr-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 April 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8110-1 Related CVEs: CVE-2021-4456 Upstream summary: Dave Rolsky discovered that Net-CIDR did not properly sanitize IP addresses. An attacker could possibly use this to bypass IP-based restrictions. Table of contents […]

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CHAT