Linux

How to Set Up a DNS Server with Bind9 on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Install and Configure Traefik Reverse Proxy on Ubuntu 26.04

Traefik is a modern, cloud-native reverse proxy and load balancer designed for microservices. It auto-discovers services from Docker labels, Kubernetes ingress, and other providers, and automatically provisions Let’s Encrypt TLS certificates. This guide installs Traefik v3 on Ubuntu 26.04 LTS with Docker. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS with Docker […]

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Amazon Linux 2023 — open-vm-tools — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — open-vm-tools — multiple vulnerabilities (6 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 ALAS2023-2025-1226 Related CVEs: CVE-2025-41244 CVE-2023-34058 CVE-2023-34059 CVE-2023-20900 CVE-2025-22247 CVE-2023-20867 Upstream summary: VMware Aria Operations and VMware Tools contain a local privilege escalation vulnerability. A malicious local actor with non-administrative privileges […]

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Amazon Linux 2023 — python3.13-tornado — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — python3.13-tornado — multiple vulnerabilities (5 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 ALAS2023-2026-1528 Related CVEs: CVE-2025-67724 CVE-2025-67725 CVE-2025-67726 CVE-2026-31958 CVE-2026-35536 Upstream summary: Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, the supplied reason phrase is […]

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Debian 13 — xmp — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — xmp — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 15 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-6731 CVE-2007-6732 CVE-2013-1980 Upstream summary: Extended Module Player (XMP) 2.5.1 and earlier allow remote attackers to execute arbitrary code via an OXM file with a negative value, which […]

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Alpine Linux edge — atril — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — atril — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.28.0-r3 📖 ~4 min read  •  Source: Alpine secdb entry — atril 1.28.0-r3 Related CVEs: CVE-2026-46529 Upstream summary: Alpine community repository for vedge ships atril 1.28.0-r3 which addresses CVE-2026-46529. Table of contents Symptom & Impact Environment […]

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Debian 13 — node-on-headers — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — node-on-headers — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 July 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-7339 Upstream summary: on-headers is a node.js middleware for listening to when a response writes headers. A bug in on-headers versions `<1.1.0` may result in response headers being inadvertently […]

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Rocky Linux 9 — freeipmi — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — freeipmi — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:19208 Related CVEs: CVE-2026-33554 Upstream summary: The freeipmi packages contain an Intelligent Platform Management Interface (IPMI) remote console and system management software based on the IPMI specification. Security Fix(es): * […]

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Debian 13 — krita — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — krita — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 July 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2025-59820 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 […]

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Rocky Linux 9 — crun — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — crun — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:19178 Related CVEs: CVE-2026-30892 Upstream summary: crun is a OCI runtime Security Fix(es): * crun: crun: Privilege escalation due to incorrect parsing of the `–user` option (CVE-2026-30892) For more details […]

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Debian 13 — libitext5-java — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libitext5-java — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 July 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-37819 CVE-2021-43113 Upstream summary: PDF Labs pdftk-java v3.2.3 was discovered to contain an infinite loop via the component /text/pdf/PdfReader.java. Table of contents Symptom & Impact Environment & Reproduction […]

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