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FreeBSD 13 — postgresql96-server — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — postgresql96-server — multiple vulnerabilities (19 CVEs) — patch and remediation guide

  • November 30, 2021
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 30 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PostgreSQL — Possible man-in-the-middle attacks Related CVEs: CVE-2016-5423 CVE-2016-5424 CVE-2017-15098 CVE-2017-15099 CVE-2017-7546 CVE-2017-7547 CVE-2017-7548 CVE-2018-1052  +11 more Upstream summary: The PostgreSQL Project reports: CVE-2021-23214: A man-in-the-middle with the ability to […]

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How to Configure pf Firewall Rules on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure pf Firewall Rules on FreeBSD 13

  • November 30, 2021
  • FreeBSD
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Introduction Deploying configure pf firewall rules on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard […]

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

FreeBSD 13 — rubygem-loofah — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • November 30, 2021
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 30 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Loofah — XSS vulnerability Related CVEs: CVE-2018-16468 CVE-2018-8048 CVE-2019-15587 Upstream summary: GitHub issue: This issue has been created for public disclosure of an XSS vulnerability that was responsibly reported by […]

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FreeBSD 12 — pg_partman — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — pg_partman — vulnerability — patch and remediation guide

  • November 30, 2021
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 30 November 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PG Partition Manager — arbitrary code execution Related CVEs: CVE-2021-33204 Upstream summary: PG Partition Manager reports: In the pg_partman (aka PG Partition Manager) extension before 4.5.1 for PostgreSQL, arbitrary code […]

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Debian 11 — varnish — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — varnish — multiple vulnerabilities (19 CVEs) — patch and remediation guide

  • November 30, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-2936 CVE-2009-4488 CVE-2013-4090 CVE-2013-4484 CVE-2015-8852 CVE-2017-12425 CVE-2017-8807 CVE-2019-15892  +11 more Upstream summary: The Command Line Interface (aka Server CLI or administration interface) in the master process in the […]

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Debian 11 — tiemu — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — tiemu — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • November 30, 2021
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 30 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-20040 CVE-2017-20225 Upstream summary: TiEmu 3.03-nogdb+dfsg-3 contains a buffer overflow vulnerability in the ROM parameter handling that allows local attackers to crash the application or execute arbitrary code. […]

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Oracle Linux 8 — emacs — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — emacs — security and stability fixes — required update (ELSA-2023-3042)

  • November 29, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 29 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-3042 Related CVEs: CVE-2022-45939 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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Common Problems 121571

Debian 9 – ext4 Filesystem Remounts Read-Only – Root Cause and Repair

  • November 29, 2021
  • Linux
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🔴 Critical   ⏱ 5–30 min  Last verified: 29 November 2021 Affected versions: Debian 9 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]

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AlmaLinux 8 — mingw-openssl — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — mingw-openssl — vulnerability — patch and remediation guide

  • November 29, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2019:3683 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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How to Deploy a Flask App with Gunicorn on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Deploy a Flask App with Gunicorn on FreeBSD 13

  • November 29, 2021
  • FreeBSD
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Introduction This guide explains how to Deploy a Flask App with Gunicorn on FreeBSD 13 on FreeBSD 13. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum […]

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