chris

How to Configure Network Interface Aggregation on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure Network Interface Aggregation on FreeBSD 15

Introduction How to Configure Network Interface Aggregation 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 […]

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FreeBSD 15 — xscreensaver — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — xscreensaver — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 June 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: xscreensaver – lock bypass Related CVEs: CVE-2015-8025 Upstream summary: RedHat bugzilla reports: In dual screen configurations, unplugging one screen will cause xscreensaver to crash, leaving the screen unlocked. Table of […]

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Common Problems 116120

Ubuntu 26.04 LTS TLS Failures Due to Outdated CA Certificates

🟠 High   ⏱ 5–30 min  Last verified: 18 June 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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FreeBSD 15 — ossec-hids-client — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — ossec-hids-client — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 18 June 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: security/ossec-hids-* — root escalation via syscheck feature Related CVEs: CVE-2014-5284 CVE-2015-3222 Upstream summary: OSSEC reports: The CVE-2015-3222 vulnerability, which allows for root escalation via sys check has been fixed in […]

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Amazon Linux 2023 — perl-JSON-XS — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — perl-JSON-XS — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2025-1200 Related CVEs: CVE-2025-40928 Upstream summary: JSON::XS before version 4.04 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified […]

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FreeBSD 13 — c-ares — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — c-ares — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 18 June 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: c-ares — Use After Free Related CVEs: CVE-2007-3152 CVE-2007-3153 CVE-2024-25629 CVE-2025-62408 Upstream summary: https://github.com/c-ares/c-ares/security/advisories/GHSA-jq53-42q6-pqr5 reports: c-ares is an asynchronous resolver library. Versions 1.32.3 through 1.34.5 terminate a query after maximum […]

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Amazon Linux 2023 — ecs-init — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — ecs-init — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2026-1552 Related CVEs: CVE-2026-25679 CVE-2026-27139 CVE-2026-27142 CVE-2026-33186 CVE-2025-65637 CVE-2025-47912 CVE-2025-58183 CVE-2025-58185  +12 more Upstream summary: url.Parse insufficiently validated the host/authority component and accepted some invalid URLs. (CVE-2026-25679) On Unix platforms, […]

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

How to Set Up VLAN Tagging on FreeBSD 15

Introduction How to Set Up VLAN Tagging 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 […]

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