Package Management

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

Debian 12 — dnstracer — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 November 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-9430 Upstream summary: Stack-based buffer overflow in dnstracer through 1.9 allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a […]

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NetBSD 9.4 — ruby25-base — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — ruby25-base — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2019-8324 CVE-2018-1000073 CVE-2018-1000074 CVE-2018-1000075 CVE-2018-1000076 CVE-2018-1000077 CVE-2018-1000078 CVE-2018-1000079  +12 more Upstream summary: pkgsrc audit-packages flagged ruby25-base<2.5.3nb2 for vulnerability class 'arbitrary-code-execution'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2019-8324 Table of contents Symptom & Impact Environment […]

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SLES 15 — python311-cmarkgfm — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — python311-cmarkgfm — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 15 November 2023 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2023-37463 Upstream summary: cmark-gfm is an extended version of the C reference implementation of CommonMark, a rationalized version of Markdown syntax with a spec. Three […]

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NetBSD 9.4 — p5-Module-Metadata — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — p5-Module-Metadata — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2013-1437 Upstream summary: pkgsrc audit-packages flagged p5-Module-Metadata<1.000015 for vulnerability class 'arbitrary-code-execution'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2013-1437 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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How to Set Up BGP Routing with BIRD on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up BGP Routing with BIRD on Debian 12

Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up set up bgp routing with bird on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step […]

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Oracle Linux 9 — xorg-x11-server-Xwayland security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — xorg-x11-server-Xwayland security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-6341)

🟡 Medium   ⏱ 10–30 min  Last verified: 14 November 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-6341 Related CVEs: CVE-2023-1393 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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NetBSD 9.4 — spin — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — spin — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2021-46168 Upstream summary: pkgsrc audit-packages flagged spin-[0-9]* for vulnerability class 'out-of-bounds-write'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-46168 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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How to Configure a Firewall with nftables on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure a Firewall with nftables on CentOS Stream 9

Introduction How to Configure a Firewall with nftables on CentOS Stream 9 on CentOS Stream 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting […]

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How to Configure DRBD-Style Replication on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure DRBD-Style Replication on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure drbd-style replication on ibm aix 7.2 on IBM […]

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