Security Hardening

Debian 13 — xwayland — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — xwayland — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 2 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-4008 CVE-2021-4009 CVE-2021-4010 CVE-2021-4011 CVE-2022-2319 CVE-2022-2320 CVE-2022-3550 CVE-2022-3551  +12 more Upstream summary: A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access […]

Read more
Amazon Linux 2 — microcode_ctl — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — microcode_ctl — multiple vulnerabilities (20 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 ALAS2-2025-3014 Related CVEs: CVE-2025-22839 CVE-2025-22840 CVE-2025-22889 CVE-2025-26403 CVE-2025-32086 CVE-2025-20053 CVE-2025-21090 CVE-2025-24305  +12 more Upstream summary: Insufficient granularity of access control in the OOB-MSM for some Intel(R) Xeon(R) 6 Scalable processors […]

Read more
Common Problems 111080

Windows Server 2025 — Forwarded Events log subscription not receiving events from remote servers — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 2 November 2025 Affected versions: Windows Server 2025 📖 ~2 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 […]

Read more
How to Install ArgoCD on Debian 13 Kubernetes — step-by-step Debian 13 tutorial on Progressive Robot

How to Install ArgoCD on Debian 13 Kubernetes

Introduction This guide explains how to Install ArgoCD on Debian 13 Kubernetes on Debian 13 Trixie. Debian Trixie 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 13 install with the standard […]

Read more
AlmaLinux 8 — perl-libnet — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — perl-libnet — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:8096 Related CVEs: CVE-2025-40909 CVE-2023-47038 Upstream summary: Perl is a high-level programming language that is commonly used for system administration utilities and web programming. Security Fix(es): * perl: Perl threads have a […]

Read more
Debian 13 — lxc — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — lxc — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 1 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-6441 CVE-2015-1331 CVE-2015-1334 CVE-2015-1335 CVE-2016-10124 CVE-2016-8649 CVE-2017-18641 CVE-2017-5985  +4 more Upstream summary: The lxc-sshd template (templates/lxc-sshd.in) in LXC before 1.0.0.beta2 uses read-write permissions when mounting /sbin/init, which allows […]

Read more
Debian 12 — libfcgi — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libfcgi — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 November 2025 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-6687 CVE-2025-23016 Upstream summary: FastCGI (aka fcgi and libfcgi) 2.4.0 allows remote attackers to cause a denial of service (segmentation fault and crash) via a large number of […]

Read more
Debian 13 — ibutils — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — ibutils — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-2561 Upstream summary: OpenFabrics ibutils 1.5.7 allows local users to overwrite arbitrary files via a symlink attack on (1) ibdiagnet.db, (2) ibdiagnet.fdbs, (3) ibdiagnet_ibis.log, (4) ibdiagnet.log, (5) ibdiagnet.lst, […]

Read more
Debian 13 — typespeed — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — typespeed — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 1 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2002-1389 CVE-2003-0435 CVE-2005-0105 CVE-2006-1515 CVE-2007-6220 Upstream summary: Buffer overflow in typespeed 0.4.2 and earlier allows local users to gain privileges via long input. Table of contents Symptom & […]

Read more
Debian 13 — mosh — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — mosh — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-2385 Upstream summary: The terminal dispatcher in mosh before 1.2.1 allows remote authenticated users to cause a denial of service (long loop and CPU consumption) via an escape […]

Read more
CHAT