June 2026 - Page 171 of 198

Red Hat Enterprise Linux 7 — firefox — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 7 — firefox — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 7 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:19704 Related CVEs: CVE-2026-6746 CVE-2026-6747 CVE-2026-6748 CVE-2026-6749 CVE-2026-6750 CVE-2026-6751 CVE-2026-6752 CVE-2026-6753  +12 more Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Debian 13 — libxml2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libxml2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 June 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0110 CVE-2004-0989 CVE-2007-6284 CVE-2008-3281 CVE-2008-3529 CVE-2008-4225 CVE-2008-4226 CVE-2009-2414  +12 more Upstream summary: Buffer overflow in the (1) nanohttp or (2) nanoftp modules in XMLSoft Libxml 2 (Libxml2) 2.6.0 […]

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How to Tune Kernel Parameters with sysctl on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Tune Kernel Parameters with sysctl on FreeBSD 15

Introduction This guide explains how to Tune Kernel Parameters with sysctl on FreeBSD 15 on FreeBSD 15. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for […]

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Common Problems 115907

apt lock contention blocks unattended and manual installs

🟡 Medium   ⏱ 5–30 min  Last verified: 4 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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Common Problems 115982

Ubuntu 26.04 LTS – Wi-Fi adapter not detected after install – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 4 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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NetBSD 10.0 — py-httpbin — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — py-httpbin — 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-2025-15095 Upstream summary: pkgsrc audit-packages flagged py{27,39,310,311,312,313,314}-httpbin-[0-9]* for vulnerability class 'cross-site-scripting'. Reference: https://nvd.nist.gov/vuln/detail/CVE-2025-15095 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Common Problems 113987

RHEL 10 – New kernel installed but old kernel still boots by default – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 4 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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How to Monitor Kubernetes with Prometheus and Grafana on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Monitor Kubernetes with Prometheus and Grafana on RHEL 9

Prometheus and Grafana are the de facto standard monitoring stack for Kubernetes clusters. Prometheus is a time-series metrics database that scrapes metrics from Kubernetes components (API server, kubelet, etcd) and from applications via HTTP endpoints in a pull-based model. Grafana is a visualisation platform that queries Prometheus and displays metrics as interactive dashboards. The kube-prometheus-stack […]

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FreeBSD 15 — postfix-current-base — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — postfix-current-base — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 4 June 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Postfix — memory corruption vulnerability Related CVEs: CVE-2011-0411 CVE-2011-1720 Upstream summary: The Postfix SMTP server has a memory corruption error, when the Cyrus SASL library is used with authentication mechanisms […]

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AlmaLinux 9 — gnutls — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — gnutls — multiple vulnerabilities (14 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-2026:4188 Related CVEs: CVE-2025-14831 CVE-2025-9820 CVE-2025-32988 CVE-2025-32989 CVE-2025-32990 CVE-2025-6395 CVE-2024-12243 CVE-2024-28834  +6 more Upstream summary: The gnutls packages provide the GNU Transport Layer Security (GnuTLS) library, which implements cryptographic algorithms and protocols […]

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