October 2021 - Page 60 of 69

Ubuntu 16.04 — python-babel — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — python-babel — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4962-1 Related CVEs: CVE-2021-20095 Upstream summary: It was discovered that Babel incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. Table of contents Symptom […]

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Ubuntu 18.04 — abcm2ps — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — abcm2ps — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5961-1 Related CVEs: CVE-2018-10753 CVE-2018-10771 CVE-2019-1010069 CVE-2021-32434 CVE-2021-32435 CVE-2021-32436 Upstream summary: It was discovered that abcm2ps incorrectly handled memory when parsing specially crafted ABC files. An attacker could use this […]

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

Ubuntu 20.04にNginxをインストールする方法

Nginxは、世界で最も人気のあるWebサーバーの1つであり、インターネット上で最大かつ最もトラフィックの多いサイトのホスティングを担っています。このガイドでは、Ubuntu 20.04サーバーにNginxをインストールする方法について説明します。

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How to Set Up Automatic SSH Login Banners and Legal Warnings on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up Automatic SSH Login Banners and Legal Warnings on RHEL 9

Login banners and warning messages are a simple but legally important security control on Linux systems. Before users authenticate, a visible warning that unauthorized access is prohibited can be critical for legal enforcement action if a system is breached. After login, a message of the day can display system status information relevant to administrators. Many […]

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Arch Linux — python-babel — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — python-babel — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202105-15 Related CVEs: CVE-2021-20095 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 2.9.0-1. Fixed in: 2.9.1-1. Group: AVG-1894. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Oracle Linux 8 — go-toolset:ol8 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — go-toolset:ol8 — security and stability fixes — required update (ELSA-2022-5337)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5337 Related CVEs: CVE-2022-29526 CVE-2022-28327 CVE-2022-24675 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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Arch Linux — openexr — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — openexr — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202107-14 Related CVEs: CVE-2021-3598 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 3.0.4-1. Fixed in: 3.0.5-1. Group: AVG-2071. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 114995

Cockpit Web Console Not Reachable on Port 9090

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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 & Cross-Refs References & Further […]

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FreeBSD 13 — silc-irssi-client — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — silc-irssi-client — vulnerability — 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: silc-client — Format string vulnerability Related CVEs: CVE-2009-3051 Upstream summary: SILC changelog reports: An unspecified format string vulnerability exists in silc-client. Table of contents Symptom & Impact Environment & Reproduction […]

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Debian 11 — nas — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — nas — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-1543 CVE-2007-1544 CVE-2007-1545 CVE-2007-1546 CVE-2007-1547 CVE-2013-4256 CVE-2013-4258 Upstream summary: Stack-based buffer overflow in the accept_att_local function in server/os/connection.c in Network Audio System (NAS) before 1.8a SVN 237 allows […]

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