Logging Monitoring

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

SLES 15 — osasnmpd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 January 2022 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:0776-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-25316 Upstream summary: A Insecure Temporary File vulnerability in s390-tools of SUSE Linux Enterprise Server 12-SP5, SUSE Linux Enterprise Server 15-SP2 allows local attackers to […]

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Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel-container — vulnerability — patch and remediation guide (ELSA-2021-9421)

🟠 High   ⏱ 15–60 min  Last verified: 28 January 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-9421 Related CVEs: CVE-2021-3656 CVE-2021-3653 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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How to Install FreeBSD 13 on a Server — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install FreeBSD 13 on a Server

Introduction How to Install FreeBSD 13 on a Server is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 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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How to Install Icinga2 on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Install Icinga2 on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying install icinga2 on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Icinga2 on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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FreeBSD 13 — serendipity — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — serendipity — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 January 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: serendipity — XSS Related CVEs: CVE-2008-1385 CVE-2008-1386 CVE-2019-11870 Upstream summary: MITRE: Serendipity before 2.1.5 has XSS via EXIF data that is mishandled in the templates/2k11/admin/media_choose.tpl Editor Preview feature or the […]

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AlmaLinux 8 — which — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — which — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:2067 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 13 — pure-ftpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — pure-ftpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 January 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pureftpd — multiple vulnerabilities Related CVEs: CVE-2011-0418 CVE-2011-1575 Upstream summary: Pure-FTPd development team reports: Support for braces expansion in directory listings has been disabled — Cf. CVE-2011-0418. Fix a STARTTLS […]

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FreeBSD 13 — vinyl — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — vinyl — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 January 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Vinyl/Varnish — HTTP/2 parsing deficiency Upstream summary: Vinyl Development Team reports: A deficiency in HTTP/2 request parsing can be exploited to launch a backend request desync attack (request smuggling), which […]

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