Security Hardening

Rocky Linux 9 — giflib — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — giflib — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:8859 Related CVEs: CVE-2026-23868 Upstream summary: giflib is a library for reading and writing gif images. Security Fix(es): * giflib: Giflib: Double-free vulnerability leading to memory corruption (CVE-2026-23868) For more […]

Read more
How to Install ArgoCD on RHEL 10 Kubernetes — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install ArgoCD on RHEL 10 Kubernetes

Introduction Setting up install argocd on rhel 10 kubernetes on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install ArgoCD on RHEL 10 Kubernetes, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how […]

Read more
Debian 12 — libhibernate-validator-java — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libhibernate-validator-java — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 July 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-3558 CVE-2017-7536 CVE-2019-10219 CVE-2020-10693 CVE-2023-1932 CVE-2025-35036 Upstream summary: ReflectionHelper (org.hibernate.validator.util.ReflectionHelper) in Hibernate Validator 4.1.0 before 4.2.1, 4.3.x before 4.3.2, and 5.x before 5.1.2 allows attackers to bypass Java […]

Read more
Debian 13 — lynis — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — lynis — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-3986 CVE-2017-8108 CVE-2019-13033 CVE-2020-13882 Upstream summary: include/tests_webservers in Lynis before 1.5.5 allows local users to overwrite arbitrary files via a symlink attack on a /tmp/lynis.*.unsorted file with an […]

Read more
NetBSD 9.4 — gst-plugins1-ugly — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — gst-plugins1-ugly — multiple vulnerabilities (4 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-2026-2920 CVE-2026-2922 CVE-2017-5847 CVE-2017-5846 Upstream summary: pkgsrc audit-packages flagged gst-plugins1-ugly<1.22.5 for vulnerability class 'integer-overflow'. Reference: https://gstreamer.freedesktop.org/security/sa-2023-0004.html Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

Read more
Rocky Linux 8 — perl-Encode — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — perl-Encode — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:8096 Related CVEs: CVE-2025-40909 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 […]

Read more
How to Install Portainer on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install Portainer on FreeBSD 15

Introduction This guide explains how to Install Portainer on FreeBSD 15 on FreeBSD 15. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

Read more
Debian 13 — libmarc-xml-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libmarc-xml-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-1626 Upstream summary: XML External Entity (XXE) vulnerability in MARC::File::XML module before 1.0.2 for Perl, as used in Evergreen, Koha, perl4lib, and possibly other products, allows context-dependent attackers […]

Read more
Debian 13 — aria2 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — aria2 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-3575 CVE-2009-3617 CVE-2010-1512 CVE-2019-3500 CVE-2026-8367 Upstream summary: Buffer overflow in DHTRoutingTableDeserializer.cc in aria2 0.15.3, 1.2.0, and other versions allows remote attackers to cause a denial of service (crash) […]

Read more
Windows Server 2019 — KB5075941 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5075941 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5075941 • MSRC update-guide entry Related CVEs: CVE-2026-21519 CVE-2026-21248 CVE-2026-21247 CVE-2026-21235 CVE-2026-21234 CVE-2026-21236 CVE-2026-21533 CVE-2026-21513  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Access of resource using incompatible […]

Read more
CHAT