August 2021 - Page 5 of 69

Ubuntu 16.04 — pdfresurrect — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — pdfresurrect — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5282-1 Related CVEs: CVE-2019-14267 CVE-2019-14934 CVE-2020-20740 CVE-2020-9549 CVE-2021-3508 Upstream summary: It was discovered that PDFResurrect was incorrectly handling corrupted PDF files. An attacker could possibly use this issue to cause […]

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How To Build a Modern Web Application to Manage Customer Information with Django and React on Ubuntu 18.04 — Linux tutorial on Progressive Robot

How To Build a Modern Web Application to Manage Customer Information with Django and React on Ubuntu 18.04

In this tutorial, you will build a modern web application with a separate REST API backend and frontend using React, Django, and Django REST Framework. By using React with Django, you’ll be able to benefit from the latest advancements in JavaScript and front-end development. The web application you will build stores records about customers in a database, and you can use it as a starting point for a CRM application.

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How to Use Performance Monitor (perfmon) on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Use Performance Monitor (perfmon) on Windows Server 2016

How to Configure Windows Performance Monitor (perfmon) on Windows Server 2016 Windows Performance Monitor (perfmon) is a built-in diagnostic tool in Windows Server 2016 that provides real-time and historical visibility into hundreds of system performance counters. It can monitor CPU utilization, memory pressure, disk I/O, network throughput, and application-specific metrics from SQL Server, IIS, Active […]

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

AlmaLinux 8 — librevenge — 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-2020:1743 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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Gentoo Linux — sys-auth/polkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — sys-auth/polkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202201-01 Related CVEs: CVE-2021-4034 CVE-2021-3560 Upstream summary: Flawed input validation of arguments was discovered in the 'pkexec' program's main() function. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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Common Problems 125083

Oracle Linux 8 – Common Problem 012 – Diagnosis and Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Oracle Linux 8 📖 ~3 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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IBM AIX 7.2 — CVE-2021-38982 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2021-38982 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 25 May 2026 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2021-38982, IBM Support Bulletin CVE: CVE-2021-38982 NVD summary: IBM Tivoli Key Lifecycle Manager 3.0, 3.0.1, 4.0, and 4.1 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code […]

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FreeBSD 12 — py311-markdown — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py311-markdown — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-markdown2 — regular expression denial of service vulnerability Related CVEs: CVE-2020-11888 CVE-2021-26813 Upstream summary: Ben Caller reports: markdown2 >=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of […]

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

FreeBSD 13 — kvirc-devel — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: kvirc — multiple vulnerabilities Related CVEs: CVE-2010-2451 CVE-2010-2452 Upstream summary: Two security vulnerabilities have been discovered: Multiple format string vulnerabilities in the DCC functionality in KVIrc 3.4 and 4.0 have […]

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