Package Management

Ubuntu 20.04 — flask-security — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — flask-security — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 November 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6792-1 Related CVEs: CVE-2021-23385 Upstream summary: Naom Moshe discovered that Flask-Security incorrectly validated URLs. An attacker could use this issue to redirect users to arbitrary URLs. Table of contents Symptom […]

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Debian 10 — trafficserver — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — trafficserver — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 8 November 2021 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-9512 CVE-2019-17559 CVE-2020-17508 CVE-2020-9494 CVE-2021-27577 CVE-2021-37147 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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IBM AIX 7.1 — CVE-2021-20483 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.1

IBM AIX 7.1 — CVE-2021-20483 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 7 November 2021 Affected versions: IBM AIX 7.1 📖 ~4 min read  •  Source: NVD CVE-2021-20483, IBM Support Bulletin CVE: CVE-2021-20483 NVD summary: IBM Security Identity Manager 6.0.2 is vulnerable to server-side request forgery (SSRF). By sending a specially crafted request, a remote authenticated attacker could exploit […]

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

Oracle Linux 8 — kernel — security and stability fixes — required update (ELSA-2022-1550)

🟠 High   ⏱ 15–60 min  Last verified: 7 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1550 Related CVEs: CVE-2021-4028 CVE-2022-25636 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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FreeBSD 13 — zabbix2-proxy — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — zabbix2-proxy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Zabbix — Remote code execution Related CVEs: CVE-2017-2824 Upstream summary: mitre reports: An exploitable code execution vulnerability exists in the trapper command functionality of Zabbix Server 2.4.X. A specially crafted […]

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

AlmaLinux 8 — jaf — 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-2021:4329 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 — php70-odbc — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — php70-odbc — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2015-8879 CVE-2016-5385 CVE-2016-5399 CVE-2016-6288 CVE-2016-6289 CVE-2016-6290 CVE-2016-6291 CVE-2016-6292  +4 more Upstream summary: PHP reports: Fixed bug #69975 (PHP segfaults when accessing nvarchar(max) defined columns) […]

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How to Install OpenVPN on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install OpenVPN on FreeBSD 13

Introduction This guide explains how to Install OpenVPN 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 for fine-grained privilege separation. […]

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FreeBSD 13 — php55-sqlite — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — php55-sqlite — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — use-after-free vulnerability Upstream summary: Symeon Paraschoudis reports: Use-after-free vulnerability in sqlite3SafetyCheckSickOrOk() Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution […]

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FreeBSD 13 — py33-foolscap — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py33-foolscap — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 November 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-foolscap — local file inclusion Upstream summary: Brian Warner reports: The "flappserver" feature was found to have a vulnerability in the service-lookup code which, when combined with an attacker who […]

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