Linux

openSUSE Tumbleweed — lua54 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — lua54 — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • February 22, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2020-15888 CVE-2020-24342 CVE-2022-33099 CVE-2021-44647 CVE-2020-24369 CVE-2021-43519 CVE-2020-15945 Upstream summary: Lua through 5.4.0 mishandles the interaction between stack resizes and garbage collection, leading to a heap-based […]

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How To Secure Nginx with Let's Encrypt on Debian 8 — step-by-step Linux tutorial on Progressive Robot

How To Secure Nginx with Let’s Encrypt on Debian 8

  • February 22, 2023
  • Linux
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Let’s Encrypt is a new Certificate Authority (CA) that provides an easy way to obtain and install free TLS/SSL certificates, thereby enabling encrypted HTTPS on web servers. It simplifies the process by providing a software client, certbot (previously called letsencrypt),…

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Ubuntu 20.04にMongoDBをインストールする方法 — step-by-step Linux tutorial on Progressive Robot

Ubuntu 20.04にMongoDBをインストールする方法

  • February 22, 2023
  • Linux
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MongoDBは、最新のWebアプリケーションで一般的に使用されるオープンソースのドキュメントデータベースです。従来のテーブルベースのリレーショナルデータベース構造に依存しないため、NoSQLデータベースとして分類されます。代わりに、動的スキーマを持つJSONのようなドキュメントを使用します。このチュートリアルでは、Ubuntu 20.04サーバーにMongoDBをインストールしてテストし、systemdサービスとして管理する方法を学びます。

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Oracle Linux 9 — tigervnc — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — tigervnc — security and stability fixes — required update (ELSA-2023-2257)

  • February 21, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 21 February 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2257 Related CVEs: CVE-2022-46340 CVE-2022-4283 CVE-2022-46341 CVE-2022-46342 CVE-2022-46343 CVE-2022-46344 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Alpine Linux edge — rt4 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — rt4 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • February 21, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 4.4.7-r0 📖 ~4 min read  •  Source: Alpine secdb entry — rt4 4.4.7-r0 Related CVEs: CVE-2021-38562 CVE-2022-25802 CVE-2023-41259 CVE-2023-41260 Upstream summary: Alpine community repository for vedge ships rt4 4.4.7-r0 which addresses CVE-2021-38562. Table of contents Symptom […]

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Debian 11 — onionshare — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — onionshare — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • February 21, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 21 February 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-5026 CVE-2018-19960 CVE-2021-41868 CVE-2022-21689 CVE-2022-21690 CVE-2022-21694 Upstream summary: hs.py in OnionShare before 0.9.1 allows local users to modify the hiddenservice by pre-creating the /tmp/onionshare directory. Table of contents […]

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Debian 11 — powerline-gitstatus — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — powerline-gitstatus — vulnerability — patch and remediation guide

  • February 21, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 21 February 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-42906 Upstream summary: powerline-gitstatus (aka Powerline Gitstatus) before 1.3.2 allows arbitrary code execution. git repositories can contain per-repository configuration that changes the behavior of git, including running arbitrary […]

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Ubuntu 16.04 — quagga — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — quagga — multiple vulnerabilities (11 CVEs) — patch and remediation guide

  • February 21, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 21 February 2023 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6432-1 Related CVEs: CVE-2023-41358 CVE-2023-41360 CVE-2018-5378 CVE-2018-5379 CVE-2018-5380 CVE-2018-5381 CVE-2017-16227 CVE-2017-5495  +3 more Upstream summary: It was discovered that the Quagga BGP daemon did not properly check the attribute length […]

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Ubuntu 22.04 — packagekit — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — packagekit — vulnerability — patch and remediation guide

  • February 21, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 21 February 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8195-1 Related CVEs: https://launchpad.net/bugs/2149908 Upstream summary: It was discovered that PackageKit incorrectly handled certain transactions. A local attacker could use this issue to install arbitrary packages as root, possibly resulting […]

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