Systemd Services

Oracle Linux 8 — pki-core:10.6 and pki-deps:10.6 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — pki-core:10.6 and pki-deps:10.6 — security and stability fixes — required update (ELSA-2022-7470)

🟠 High   ⏱ 15–60 min  Last verified: 23 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-7470 Related CVEs: CVE-2022-2414 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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Alpine Linux edge — py3-bleach — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — py3-bleach — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 3.3.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — py3-bleach 3.3.0-r0 Related CVEs: CVE-2021-23980 CVE-2020-6816 CVE-2020-6802 Upstream summary: Alpine community repository for vedge ships py3-bleach 3.3.0-r0 which addresses CVE-2021-23980. Table of contents Symptom & […]

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IBM AIX 7.2 — CVE-2020-4365 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2020-4365 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 23 February 2021 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2020-4365, IBM Support Bulletin CVE: CVE-2020-4365 NVD summary: IBM WebSphere Application Server 8.5 is vulnerable to server-side request forgery. By sending a specially crafted request, a remote authenticated attacker could exploit this […]

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How to Install Nexus Repository on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install Nexus Repository on Oracle Linux 8

Introduction Setting up install nexus repository on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install Nexus Repository on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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Ubuntu 18.04 — nettle — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — nettle — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 23 February 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4990-1 Related CVEs: CVE-2018-16869 CVE-2021-3580 CVE-2021-20305 Upstream summary: It was discovered that Nettle incorrectly handled RSA decryption. A remote attacker could possibly use this issue to cause Nettle to crash, […]

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Ubuntu 18.04 — linuxptp — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — linuxptp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 February 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6097-1 Related CVEs: CVE-2021-3570 Upstream summary: It was discovered that Linux PTP did not properly perform a length check when forwarding a PTP message between ports. A remote attacker could […]

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Amazon Linux 2 — zsh — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — zsh — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2020-1439 Related CVEs: CVE-2019-20044 CVE-2021-45444 CVE-2018-0502 CVE-2018-13259 CVE-2018-1071 CVE-2018-1083 CVE-2018-1100 CVE-2017-18205  +3 more Upstream summary: In Zsh before 5.8, attackers able to execute commands can regain privileges dropped by the […]

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SLES 15 — linuxptp — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — linuxptp — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 23 February 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:2443-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-3570 Upstream summary: A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between […]

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Oracle Linux 8 — unbound — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — unbound — vulnerability — patch and remediation guide (ELSA-2020-2416)

🟠 High   ⏱ 15–60 min  Last verified: 23 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-2416 Related CVEs: CVE-2020-12662 CVE-2020-12663 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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