Security Hardening

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

How to Install GraalVM on FreeBSD 15

Introduction How to Install GraalVM 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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Debian 13 — rust-tokio — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — rust-tokio — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-45710 CVE-2023-22466 Upstream summary: An issue was discovered in the tokio crate before 1.8.4, and 1.9.x through 1.13.x before 1.13.1, for Rust. In certain circumstances involving a closed […]

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Common Problems 116057

Ubuntu 26.04 LTS – Sudo fails with unable to resolve host warning – Fix & Prevention

🟢 Low   ⏱ 5–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~1 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 […]

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Rocky Linux 9 — libtiff — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — libtiff — multiple vulnerabilities (5 CVEs) — 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-2025:20956 Related CVEs: CVE-2025-8176 CVE-2025-9900 CVE-2026-4775 CVE-2023-52355 CVE-2023-52356 Upstream summary: The libtiff packages contain a library of functions for manipulating Tagged Image File Format (TIFF) files. Security Fix(es): * libtiff: […]

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Debian 13 — node-glob-parent — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — node-glob-parent — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-28469 CVE-2021-35065 Upstream summary: This affects the package glob-parent before 5.1.2. The enclosure regex used to check for strings ending in enclosure containing path separator. Table of contents […]

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

openSUSE Tumbleweed — logback — 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 security advisory Related CVEs: CVE-2023-6378 CVE-2023-6481 CVE-2024-12798 CVE-2026-1225 CVE-2025-11226 CVE-2024-12801 Upstream summary: A serialization vulnerability in logback receiver component part of logback version 1.4.11 allows an attacker to mount a Denial-Of-Service attack by […]

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Debian 11 — admesh — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — admesh — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-25033 CVE-2022-38072 CVE-2026-2653 Upstream summary: ADMesh through 0.98.4 has a heap-based buffer over-read in stl_update_connects_remove_1 (called from stl_remove_degenerate) in connect.c in libadmesh.a. Table of contents Symptom & Impact […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-1755 CVE-2016-6173 CVE-2019-13207 CVE-2020-28935 Upstream summary: Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to […]

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Debian 13 — pdf.js — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — pdf.js — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-4495 Upstream summary: The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypass the Same Origin […]

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CHAT