Security Hardening

Alpine Linux 3.20 — haserl — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — haserl — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 0.9.36-r0 📖 ~4 min read  •  Source: Alpine secdb entry — haserl 0.9.36-r0 Related CVEs: CVE-2021-29133 Upstream summary: Alpine main repository for vv3.20 ships haserl 0.9.36-r0 which addresses CVE-2021-29133. Table of contents Symptom & Impact Environment […]

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SLES 15 — ruby2.5-rubygem-puma — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — ruby2.5-rubygem-puma — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 January 2025 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2023:3957-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-40175 CVE-2022-24790 CVE-2021-29509 CVE-2024-21647 CVE-2024-45614 CVE-2022-23634 CVE-2021-41136 Upstream summary: Puma is a Ruby/Rack web server built for parallelism. Prior to versions 6.3.1 and 5.6.7, puma […]

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How to Configure Group Policy Software Installation on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Configure Group Policy Software Installation on Windows Server 2025

How to Configure Group Policy Software Installation on Windows Server 2025 Group Policy Software Installation (GPSI) is the built-in mechanism in Active Directory environments for deploying, updating, and removing MSI-based applications across domain-joined computers without requiring third-party tools or agents. On Windows Server 2025, GPSI continues to be a practical solution for organizations managing a […]

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Alpine Linux 3.20 — e2guardian — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — e2guardian — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 5.4.5r-r0 📖 ~4 min read  •  Source: Alpine secdb entry — e2guardian 5.4.5r-r0 Related CVEs: CVE-2021-44273 Upstream summary: Alpine community repository for vv3.20 ships e2guardian 5.4.5r-r0 which addresses CVE-2021-44273. Table of contents Symptom & Impact Environment […]

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SLES 15 — libsaml11 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libsaml11 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 January 2025 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:01500-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-31335 Upstream summary: The OpenSAML C++ library before 3.3.1 allows forging of signed SAML messages via parameter manipulation (when using SAML bindings that rely on […]

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Red Hat Enterprise Linux 9 — curl — vulnerability — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 9

Red Hat Enterprise Linux 9 — curl — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 9 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:1350 Related CVEs: CVE-2025-9086 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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Oracle Linux 8 — mariadb:10.11 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — mariadb:10.11 — vulnerability — patch and remediation guide (ELSA-2025-0737)

🟡 Medium   ⏱ 10–30 min  Last verified: 24 January 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-0737 Related CVEs: CVE-2024-21096 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 — expat — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — expat — vulnerability — patch and remediation guide (ELSA-2025-3913)

🟡 Medium   ⏱ 10–30 min  Last verified: 24 January 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-3913 Related CVEs: CVE-2024-8176 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 3.19 — perl-email-address-list — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — perl-email-address-list — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 0.06-r0 📖 ~4 min read  •  Source: Alpine secdb entry — perl-email-address-list 0.06-r0 Related CVEs: CVE-2018-18898 Upstream summary: Alpine main repository for vv3.19 ships perl-email-address-list 0.06-r0 which addresses CVE-2018-18898. Table of contents Symptom & Impact Environment […]

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SLES 12 — python-Twisted — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — python-Twisted — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 January 2025 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:2732-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-41671 CVE-2020-10108 CVE-2020-10109 CVE-2022-21716 CVE-2022-21712 CVE-2024-41810 CVE-2022-24801 CVE-2016-1000111  +3 more Upstream summary: Twisted is an event-based framework for internet applications, supporting Python 3.6+. The HTTP […]

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