September 2021 - Page 55 of 66

Debian 11 — r-cran-readxl — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — r-cran-readxl — multiple vulnerabilities (16 CVEs) — patch and remediation guide

  • September 6, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-12108 CVE-2017-12109 CVE-2017-12110 CVE-2017-12111 CVE-2017-2896 CVE-2017-2897 CVE-2017-2919 CVE-2018-20450  +8 more Upstream summary: An exploitable integer overflow vulnerability exists in the xls_preparseWorkSheet function of libxls 1.4 when handling a […]

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How To Use PAM to Configure Authentication on an Ubuntu 12.04 VPS — step-by-step Linux tutorial on Progressive Robot

How To Use PAM to Configure Authentication on an Ubuntu 12.04 VPS

  • September 6, 2021
  • Linux
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PAM, or Pluggable Authentication Modules, is a system for connecting authentication services to application requesting authentication, through the use of a consistent API. Authentication schemes can be switched out without having to reconfigure large amounts of code. In this guide, we will discuss how PAM works and give a basic explanation of how the system operates.

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How to Set Up a Local Container Registry with Harbor on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up a Local Container Registry with Harbor on RHEL 8

  • September 6, 2021
  • Linux
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Harbor is an enterprise-grade, open-source container registry that extends the base OCI registry specification with role-based access control, project isolation, image vulnerability scanning powered by Trivy, and cross-datacenter image replication. Running your own Harbor instance on RHEL 8 gives your team a private, auditable registry with no bandwidth costs or rate-limiting imposed by Docker Hub. […]

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Ubuntu 18.04 — policykit-1 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — policykit-1 — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • September 6, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5252-1 Related CVEs: CVE-2021-4034 CVE-2019-6133 CVE-2018-19788 CVE-2015-3218 CVE-2015-3255 CVE-2015-4625 CVE-2018-1116 Upstream summary: It was discovered that the PolicyKit pkexec tool incorrectly handled command-line arguments. A local attacker could use this […]

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SLES 15 — python2-Babel — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — python2-Babel — vulnerability — patch and remediation guide

  • September 6, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2021:599-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-42771 Upstream summary: Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to […]

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Установка и обеспечение безопасности Redis в Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Установка и обеспечение безопасности Redis в Ubuntu 20.04

  • September 6, 2021
  • Linux
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Предыдущая версия данного обучающего руководства была написана Джастином Эллингвудом Redis — это быстрое хранилище данных типа «ключ‑значение», известное своей гибкостью, производительностью и…

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

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

  • September 6, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-1745 CVE-2020-10018 CVE-2020-11793 CVE-2020-13543 CVE-2020-13558 CVE-2020-13584 CVE-2020-13753 CVE-2020-27918  +12 more Upstream summary: Use-after-free vulnerability in the SVG implementation in Blink, as used in Google Chrome before 35.0.1916.114, allows […]

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How to Style Body with CSS – Background, Font & Global Styles 2025–2026

How to Style Body with CSS – Background, Font & Global Styles 2025–2026

Learning how to style body with CSS is one of the most important foundational steps in any CSS tutorial for beginners — the element is the root container for all visible content on your webpage, and styling it correctly sets the global look and feel: background image or color, default font family, text color, line height, margins, and link styles. Mastering how to style body with CSS gives you control over the entire site’s atmosphere before adding individual sections, ensuring consistency, readability, and professionalism from the very first line of code.

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