November 2023 - Page 65 of 77

Ubuntu 20.04 — grub2-signed — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — grub2-signed — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6410-1 Related CVEs: CVE-2023-4692 CVE-2023-4693 CVE-2022-28737 CVE-2021-3695 CVE-2021-3696 CVE-2021-3697 CVE-2021-3981 CVE-2022-28733  +12 more Upstream summary: It was discovered that a specially crafted file system image could cause a heap-based out-of-bounds […]

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How to Install and Configure Fail2ban on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Install and Configure Fail2ban on Debian 12

Introduction This guide explains how to Install and Configure Fail2ban on Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install with the […]

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How To Install and Use ClickHouse on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Install and Use ClickHouse on Ubuntu 20.04

ClickHouse is an open source, column-oriented analytics database created by Yandex for OLAP and big data use cases. In this tutorial, you’ll install the ClickHouse database server and client on your machine. You’ll use the DBMS for typical tasks and optionally enable remote access from another server so that you’ll be able to connect to the database from another machine. Then you’ll test ClickHouse by modeling and querying example website-visit data.

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Amazon Linux 2023 — yajl — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — yajl — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2023-279 Related CVEs: CVE-2023-33460 CVE-2022-24795 Upstream summary: There's a memory leak in yajl 2.1.0 with use of yajl_tree_parse function. which will cause out-of-memory in server and cause crash. (CVE-2023-33460) Table […]

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NetBSD 9.4 — usenet_reborn — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — usenet_reborn — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged usenet_reborn-[0-9]* for vulnerability class 'unknown'. Reference: https://github.com/rust-openssl/rust-openssl/releases/tag/openssl-v0.10.78 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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NetBSD 9.4 — py-rsa — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — py-rsa — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2016-1494 CVE-2020-25658 CVE-2020-13757 Upstream summary: pkgsrc audit-packages flagged py{27,33,34,35}-rsa<3.3 for vulnerability class 'signature-spoofing'. Reference: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-1494 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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openSUSE Tumbleweed — hotspot — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — hotspot — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2023-28144 Upstream summary: KDAB Hotspot 1.3.x and 1.4.x through 1.4.1, in a non-default configuration, allows privilege escalation because of race conditions involving symlinks and elevate_perf_privileges.sh […]

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

Oracle Linux 9 — kernel — security and stability fixes — required update (ELSA-2024-2758)

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-2758 Related CVEs: CVE-2024-25742 CVE-2023-6240 CVE-2024-25743 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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NetBSD 9.4 — munin-server — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — munin-server — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2017-6188 Upstream summary: pkgsrc audit-packages flagged munin-server<2.999.6 for vulnerability class 'arbitrary-file-overwrite'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6188 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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NetBSD 9.4 — mpv — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — mpv — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2018-6360 CVE-2021-30145 CVE-2020-19824 Upstream summary: pkgsrc audit-packages flagged mpv<0.27.2 for vulnerability class 'remote-code-execution'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-6360 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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