PHP 8.3 brings performance improvements, typed class constants, the json_validate() function, and various engine enhancements over PHP 8.2. This guide installs PHP 8.3 on Ubuntu 24.04 LTS using the Ondrej PPA — the most up-to-date source for PHP on Ubuntu. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read • Source: Amazon Linux advisory ALAS2-2024-2451 Related CVEs: CVE-2024-23301 Upstream summary: Relax-and-Recover (aka ReaR) through 2.7 creates a world-readable initrd when using GRUB_RESCUE=y. This allows local attackers to gain access to system secrets otherwise only […]
🟡 Medium ⏱ 10–30 min Last verified: 8 January 2025 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2024-3667 Related CVEs: CVE-2024-2947 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Learn how to spend less time debugging your apps and more time developing using the React Devtools.
🟡 Medium ⏱ 10–30 min Last verified: 8 January 2025 Affected versions: Oracle Linux 9 📖 ~4 min read • Source: ELSA advisory ELSA-2024-2348 Related CVEs: CVE-2024-22195 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
🟠 High ⏱ 15–60 min Last verified: 8 January 2025 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2024-1786 Related CVEs: CVE-2024-27316 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 12.40-r0 📖 ~4 min read • Source: Alpine secdb entry — perl-image-exiftool 12.40-r0 Related CVEs: CVE-2022-23935 CVE-2021-22204 Upstream summary: Alpine community repository for vv3.20 ships perl-image-exiftool 12.40-r0 which addresses CVE-2022-23935. Table of contents Symptom & Impact […]
Retrieve DNS information from the command line and validate record changes for hostnames without having to account for propagation times.
How to Monitor Hyper-V with Performance Counters on Windows Server 2025 Effective Hyper-V monitoring is the foundation of a stable virtualisation environment. Windows Server 2025 exposes a rich set of Hyper-V-specific performance counters through Performance Monitor (perfmon), PowerShell’s Get-Counter cmdlet, WMI/CIM, and the open-source Prometheus exporter windows_exporter. These counters give you deep visibility into hypervisor […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 1.18.0-r1 📖 ~4 min read • Source: Alpine secdb entry — mupdf 1.18.0-r1 Related CVEs: CVE-2021-3407 CVE-2020-26519 CVE-2018-1000051 CVE-2018-6544 CVE-2018-6192 CVE-2018-6187 CVE-2018-5686 CVE-2017-17858 +3 more Upstream summary: Alpine community repository for vv3.19 ships mupdf 1.18.0-r1 which […]
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