Logging Monitoring

Common Problems 114051

RHEL 10 – tuned profile not applied after reboot leading to performance regression – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 18 June 2026 Affected versions: RHEL 10 📖 ~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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NetBSD 10.0 — ruby-activestorage71 — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — ruby-activestorage71 — vulnerability — patch and remediation guide

🟡 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-2025-24293 Upstream summary: pkgsrc audit-packages flagged ruby{32,33,34}-activestorage71<7.1.5.2 for vulnerability class 'command-injection'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-24293 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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How to Automate FreeBSD 15 Server Provisioning with Ansible — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Automate FreeBSD 15 Server Provisioning with Ansible

Introduction Deploying automate freebsd 15 server provisioning with ansible 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 […]

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AlmaLinux 9 — corosync — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — corosync — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:13673 Related CVEs: CVE-2026-35091 CVE-2026-35092 CVE-2025-30472 Upstream summary: The corosync packages provide the Corosync Cluster Engine and C APIs for AlmaLinux cluster software. Security Fix(es): * corosync: Corosync: Denial of Service and […]

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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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