Security Hardening

SLES 12 — libvncclient0 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libvncclient0 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • May 29, 2026
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 29 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2019:0060-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-15126 CVE-2018-15127 CVE-2018-20749 CVE-2018-20750 CVE-2018-6307 CVE-2026-32853 CVE-2026-32854 CVE-2017-18922  +12 more Upstream summary: LibVNC before commit 73cb96fec028a576a5a24417b57723b55854ad7b contains heap use-after-free vulnerability in server code of file […]

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SLES 15 — cups — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — cups — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • May 29, 2026
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 29 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SR:2010:023 (see also SUSE bugzilla) Related CVEs: CVE-2010-2941 CVE-2012-6094 CVE-2026-34990 CVE-2025-58060 CVE-2024-47175 CVE-2024-35235 CVE-2023-4504 CVE-2023-34241  +12 more Upstream summary: ipp.c in cupsd in CUPS 1.4.4 and earlier does not properly allocate memory […]

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Rocky Linux 8 — rsync — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — rsync — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • May 29, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:17481 Related CVEs: CVE-2026-41035 CVE-2025-10158 Upstream summary: The rsync utility enables the users to copy and synchronize files locally or across a network. Synchronization with rsync is fast because rsync […]

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FreeBSD 15 — go — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — go — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • May 29, 2026
  • BSD
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🟠 High   ⏱ 15–60 min  Last verified: 29 May 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: go — excessive resource consumption Related CVEs: CVE-2015-5739 CVE-2015-5740 CVE-2015-5741 CVE-2015-8618 CVE-2016-3959 CVE-2019-16276 CVE-2020-16845 CVE-2020-24553  +12 more Upstream summary: The Go project reports: Within HostnameError.Error(), when constructing an error string, […]

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How to Configure SLES 16 in Google Cloud — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Configure SLES 16 in Google Cloud

Introduction This tutorial covers How to Configure SLES 16 in Google Cloud on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: zypper refresh […]

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How to Manage Users and Groups on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Manage Users and Groups on SLES 16

Introduction This tutorial covers How to Manage Users and Groups on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: zypper […]

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NetBSD 10.0 — py-gi-docgen — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — py-gi-docgen — vulnerability — patch and remediation guide

  • May 28, 2026
  • BSD
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2025-11687 Upstream summary: pkgsrc audit-packages flagged py{27,310,311,312,313,314}-gi-docgen<2025.5 for vulnerability class 'cross-site-scripting'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-11687 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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How to Set Up WireGuard VPN on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up WireGuard VPN on FreeBSD 15

Introduction Deploying set up wireguard vpn on a FreeBSD 15 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + ports […]

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How to Install and Configure Samba File Server on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install and Configure Samba File Server on FreeBSD 15

Introduction FreeBSD 15 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install and configure samba file server on FreeBSD 15 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. […]

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How to Scan for Vulnerabilities with OpenVAS on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Scan for Vulnerabilities with OpenVAS on Oracle Linux 10

Introduction How to Scan for Vulnerabilities with OpenVAS on Oracle Linux 10 on Oracle Linux 10 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 […]

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