Linux

Amazon Linux 2 — qpdf — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — qpdf — multiple vulnerabilities (3 CVEs) — 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 ALAS2-2024-2409 Related CVEs: CVE-2021-25786 CVE-2021-36978 CVE-2022-34503 Upstream summary: An issue was discovered in QPDF version 10.0.4, allows remote attackers to execute arbitrary code via crafted .pdf file to Pl_ASCII85Decoder::write parameter […]

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Debian 11 — trousers — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — trousers — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 February 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-0698 CVE-2020-24330 CVE-2020-24331 CVE-2020-24332 Upstream summary: tcsd in TrouSerS before 0.3.10 allows remote attackers to cause a denial of service (daemon crash) via a crafted type_offset value in […]

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Debian 11 — xmlrpc-c — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xmlrpc-c — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 13 February 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-3560 CVE-2009-3720 CVE-2012-0876 CVE-2012-1148 Upstream summary: The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to […]

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openSUSE Tumbleweed — lighttpd — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — lighttpd — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2014:0449-1 (see also SUSE bugzilla) Related CVEs: CVE-2014-2323 CVE-2014-2324 CVE-2022-37797 CVE-2007-1870 CVE-2008-4359 CVE-2013-4508 CVE-2022-41556 CVE-2022-22707  +11 more Upstream summary: SQL injection vulnerability in mod_mysql_vhost.c in lighttpd before 1.4.35 allows remote attackers to […]

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How to Set Up Minio Object Storage on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Minio Object Storage on Debian 11

Introduction This guide explains how to Set Up Minio Object Storage on Debian 11 on Debian 11 Bullseye. Debian Bullseye 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 11 install with […]

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Debian 11 — xbuffy — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xbuffy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 13 February 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-0469 Upstream summary: Stack-based buffer overflow in a certain Debian patch for xbuffy before 3.3.bl.3.dfsg-9 allows remote attackers to execute arbitrary code via the subject of an email, […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 13 February 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-7837 CVE-2016-9797 CVE-2016-9798 CVE-2016-9799 CVE-2016-9800 CVE-2016-9801 CVE-2016-9802 CVE-2016-9803  +12 more Upstream summary: Buffer overflow in BlueZ 5.41 and earlier allows an attacker to execute arbitrary code via the […]

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Oracle Linux 8 — unbound — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — unbound — security and stability fixes — required update (ELSA-2023-2771)

🟡 Medium   ⏱ 10–30 min  Last verified: 12 February 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2771 Related CVEs: CVE-2022-3204 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Initial Server Setup with CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

Initial Server Setup with CentOS Stream 9

Introduction Initial Server Setup with CentOS Stream 9 on CentOS Stream 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is reproducible and […]

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