Security Hardening

Oracle Linux 8 — nginx:1.16 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nginx:1.16 — vulnerability — patch and remediation guide (ELSA-2021-2290)

🟠 High   ⏱ 15–60 min  Last verified: 6 October 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-2290 Related CVEs: CVE-2021-23017 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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FreeBSD 13 — qemu-sbruno — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — qemu-sbruno — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 6 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: qemu — denial of service vulnerability Related CVEs: CVE-2015-1779 CVE-2015-3209 CVE-2015-3214 CVE-2015-3456 CVE-2015-5154 CVE-2015-5158 CVE-2015-5165 CVE-2015-5166  +12 more Upstream summary: Daniel P. Berrange reports: The VNC server websockets decoder will […]

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Debian 11 — sqlite3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — sqlite3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 6 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-7443 CVE-2015-3414 CVE-2015-3415 CVE-2015-3416 CVE-2016-6153 CVE-2017-10989 CVE-2017-13685 CVE-2017-15286  +12 more Upstream summary: Buffer overflow in the skip-scan optimization in SQLite 3.8.2 allows remote attackers to cause a denial […]

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FreeBSD 13 — viewcvs — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — viewcvs — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: viewcvs — information leakage Related CVEs: CVE-2004-0915 Upstream summary: The hide_cvsroot and forbidden configuration options are not properly honored by viewcvs when exporting to a tar file which can lead […]

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AlmaLinux 8 — SDL2 — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — SDL2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2020:1631 Related CVEs: CVE-2018-7263 Upstream summary: The GStreamer library provides a streaming media framework based on graphs of media data filters. The libmad package is an MPEG audio decoder capable of 24-bit […]

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

FreeBSD 13 — koffice-kde — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Calligra, KOffice — input validation failure Related CVEs: CVE-2012-3455 CVE-2012-3456 Upstream summary: KDE Security Advisory reports: A flaw has been found which can allow malicious code to take advantage of […]

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FreeBSD 13 — py35-yaml — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py35-yaml — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-yaml — FullLoader (still) exploitable for arbitrary command execution Related CVEs: CVE-2017-18342 CVE-2020-1747 Upstream summary: Riccardo Schirone (https://github.com/ret2libc) reports: In FullLoader python/object/new constructor, implemented by construct_python_object_apply, has support for setting […]

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How to Install Xdebug for PHP on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Xdebug for PHP on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install xdebug for php on freebsd 13 on FreeBSD 13 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 […]

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FreeBSD 13 — jftpgw — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — jftpgw — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Arbitrary code execution via a format string vulnerability in jftpgw Related CVEs: CVE-2004-0448 Upstream summary: The log functions in jftpgw may allow remotely authenticated user to execute arbitrary code via […]

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