Package Management

Alpine Linux 3.19 — zsh — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — zsh — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 5.8.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — zsh 5.8.1-r0 Related CVEs: CVE-2021-45444 CVE-2019-20044 CVE-2018-1083 CVE-2018-1071 Upstream summary: Alpine main repository for vv3.19 ships zsh 5.8.1-r0 which addresses CVE-2021-45444. Table of contents Symptom […]

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Oracle Linux 9 — kernel security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-2458)

🟠 High   ⏱ 15–60 min  Last verified: 11 December 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2458 Related CVEs: CVE-2021-26341 CVE-2021-33655 CVE-2022-1462 CVE-2022-1789 CVE-2022-1882 CVE-2022-20141 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Debian 12 — node-mysql — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — node-mysql — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-9244 CVE-2019-14939 Upstream summary: Keys of objects in mysql node module v2.0.0-alpha7 and earlier are not escaped with `mysql.escape()` which could lead to SQL Injection. Table of contents […]

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How to Harden Web Servers on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Harden Web Servers on FreeBSD 14

Introduction How to Harden Web Servers on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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FreeBSD 14 — teamspeak_server — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 14

FreeBSD 14 — teamspeak_server — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 December 2023 Affected versions: FreeBSD 14 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Teamspeak Server — Directory Traversal Vulnerability Upstream summary: SecurityFocus reports: TeamSpeak is prone to a directory-traversal vulnerability because it fails to sufficiently sanitize user-supplied input data. Exploiting the issue may […]

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NetBSD 9.4 — socks5 — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — socks5 — 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 Upstream summary: pkgsrc audit-packages flagged socks5<1.0.2nb2 for vulnerability class 'remote-root-shell'. Reference: http://online.securityfocus.com/archive/1/9842 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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

Debian 12 — jzlib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 December 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2002-2102 Upstream summary: InfBlocks.java in JCraft JZlib before 0.0.7 allow remote attackers to cause a denial of service (NullPointerException) via an invalid block of deflated data. Table of […]

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NetBSD 9.4 — rxvt-unicode — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — rxvt-unicode — multiple vulnerabilities (4 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-2008-1142 CVE-2014-3121 CVE-2021-33477 CVE-2022-4170 Upstream summary: pkgsrc audit-packages flagged rxvt-unicode<6.3 for vulnerability class 'local-privilege-escalation'. Reference: http://secunia.com/advisories/18301/ Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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How to Install RabbitMQ on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install RabbitMQ on FreeBSD 14

Introduction FreeBSD 14 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install rabbitmq on freebsd 14 on FreeBSD 14 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. This […]

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