Troubleshooting

openSUSE Tumbleweed — libXpm4 — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libXpm4 — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:323-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-4883 CVE-2026-4367 CVE-2023-43788 CVE-2023-43789 CVE-2022-44617 CVE-2022-46285 Upstream summary: A flaw was found in libXpm. When processing files with .Z or .gz extensions, the library calls […]

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How to Install Icinga2 on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install Icinga2 on FreeBSD 15

Introduction How to Install Icinga2 on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, and […]

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Ubuntu 18.04 — zulucrypt — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — zulucrypt — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8218-1 Related CVEs: CVE-2025-53391 Upstream summary: Aaron Rainbolt discovered that zuluCrypt used insecure PolicyKit settings in zuluPolkit. An attacker could possibly use this issue to cause local privilege escalation to […]

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How to Configure iptables-nft Rules on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure iptables-nft Rules on RHEL 10

Introduction This tutorial demonstrates how to Configure iptables-nft Rules on RHEL 10 on RHEL 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered RHEL 10 system with the default AppStream repositories enabled. […]

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SLES 16 — libexempi8 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — libexempi8 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 May 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2019:1603-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-12648 CVE-2018-7728 CVE-2018-7729 CVE-2018-7730 CVE-2018-7731 Upstream summary: The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi 2.4.5 has a NULL pointer dereference. Table of contents Symptom & […]

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

How to Set Up Nagios 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 set up nagios 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. This guide walks […]

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SLES 16 — nfs-client — vulnerability — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — nfs-client — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 14 May 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2019:744-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-3689 Upstream summary: The nfs-utils package in SUSE Linux Enterprise Server 12 before and including version 1.3.0-34.18.1 and in SUSE Linux Enterprise Server 15 before […]

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NetBSD 9.4 — caddy — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — caddy — multiple vulnerabilities (13 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-2018-21246 CVE-2022-29718 CVE-2022-28923 CVE-2026-27585 CVE-2026-27586 CVE-2026-27587 CVE-2026-27588 CVE-2026-27589  +5 more Upstream summary: pkgsrc audit-packages flagged caddy<0.10.13 for vulnerability class 'authentication-bypass'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-21246 Table of contents Symptom & Impact Environment […]

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SLES 15 — pam_u2f — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — pam_u2f — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 14 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:0167-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-23013 CVE-2021-31924 CVE-2019-12209 CVE-2019-12210 CVE-2019-9578 Upstream summary: In Yubico pam-u2f before 1.3.1, local privilege escalation can sometimes occur. This product implements a Pluggable Authentication Module […]

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SLES 12 — flatpak — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — flatpak — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 14 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:1511-1 (see also SUSE bugzilla) Related CVEs: CVE-2026-34078 CVE-2024-42472 CVE-2024-32462 CVE-2023-28100 CVE-2017-5226 CVE-2019-10063 CVE-2026-34079 CVE-2023-28101  +1 more Upstream summary: Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the […]

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