Operations

How to Set Up a CentOS Stream 9 Template in VMware — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up a CentOS Stream 9 Template in VMware

Introduction Setting up set up a centos stream 9 template in vmware on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up a CentOS Stream 9 Template in VMware, with all the commands you need, the SELinux and firewalld […]

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NetBSD 9.4 — ruby-em-http-request — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — ruby-em-http-request — 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-2020-13482 Upstream summary: pkgsrc audit-packages flagged ruby{22,24,25,26,27}-em-http-request-[0-9]* for vulnerability class 'improper-certificate-validation'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-13482 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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NetBSD 9.4 — ruby-actionpack — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — ruby-actionpack — multiple vulnerabilities (7 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-2012-1099 CVE-2013-0155 CVE-2014-0081 CVE-2014-0130 CVE-2015-7579 CVE-2014-0082 CVE-2015-7581 Upstream summary: pkgsrc audit-packages flagged ruby{18,19,193}-actionpack>3<3.0.12 for vulnerability class 'cross-site-scripting'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1099 Table of contents Symptom & Impact Environment & Reproduction Root […]

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Oracle Linux 9 — kernel security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — kernel security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2022-6003)

🟡 Medium   ⏱ 10–30 min  Last verified: 14 August 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-6003 Related CVEs: CVE-2022-1055 CVE-2022-0494 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 — p5-Crypt-OpenSSL-DSA — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — p5-Crypt-OpenSSL-DSA — 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-2009-0129 Upstream summary: pkgsrc audit-packages flagged p5-Crypt-OpenSSL-DSA<0.13nb6 for vulnerability class 'ssl-certificate-spoofing'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0129 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Debian 12 — libapache2-mod-perl2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libapache2-mod-perl2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-1349 CVE-2009-0796 CVE-2011-2767 Upstream summary: PerlRun.pm in Apache mod_perl before 1.30, and RegistryCooker.pm in mod_perl 2.x, does not properly escape PATH_INFO before use in a regular expression, which […]

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Amazon Linux 2 — kernel-livepatch-5.10.196-185.743 — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — kernel-livepatch-5.10.196-185.743 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2LIVEPATCH-2023-156 Related CVEs: CVE-2023-5197 Upstream summary: A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Addition and removal of rules from […]

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openSUSE Tumbleweed — ruby3.1-rubygem-activerecord — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ruby3.1-rubygem-activerecord — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:15112-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-22794 CVE-2022-32224 CVE-2022-44566 Upstream summary: A vulnerability in ActiveRecord <6.0.6.1, v6.1.7.1 and v7.0.4.1 related to the sanitization of comments. If malicious user input is passed […]

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How to Manage Packages with DNF on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Manage Packages with DNF on Oracle Linux 9

Introduction Setting up manage packages with dnf on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Manage Packages with DNF on Oracle Linux 9, with all the commands you need, the SELinux and firewalld considerations to […]

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Debian 12 — libtasn1-6 — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libtasn1-6 — multiple vulnerabilities (13 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 14 August 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-3467 CVE-2014-3468 CVE-2014-3469 CVE-2015-2806 CVE-2015-3622 CVE-2016-4008 CVE-2017-10790 CVE-2017-6891  +5 more Upstream summary: Multiple unspecified vulnerabilities in the DER decoder in GNU Libtasn1 before 3.6, as used in GnuTLS, […]

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