🟡 Medium ⏱ 10–30 min Last verified: 5 December 2022 Affected versions: CentOS Stream 9 📖 ~4 min read • Source: AlmaLinux/RHEL advisory ALSA-2023:2193 Related CVEs: CVE-2022-27664 CVE-2022-32189 Upstream summary: Butane translates human-readable Butane Configs into machine-readable Ignition configs for provisioning operating systems that use Ignition. The following packages have been upgraded to a […]
HTTP security headers are a lightweight but highly effective layer of defence for web applications, instructing browsers to enforce policies that mitigate common attacks like clickjacking, MIME-type sniffing, cross-site scripting (XSS), and protocol downgrade attacks. HSTS (HTTP Strict Transport Security) forces browsers to use HTTPS exclusively, while a Content Security Policy (CSP) controls which resources […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2022:0104-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-14409 CVE-2020-14410 CVE-2017-2888 CVE-2022-4743 CVE-2019-13626 Upstream summary: SDL (Simple DirectMedia Layer) through 2.0.12 has an Integer Overflow (and resultant SDL_memcpy heap corruption) in SDL_BlitCopy in […]
🟠 High ⏱ 15–60 min Last verified: 5 December 2022 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2022-4798 Related CVEs: CVE-2022-29599 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
The previous tutorials in this series guided you through installing, configuring, and running Suricata as an Intrusion Detection (IDS) and Intrusion Prevention (IPS) system. You also learned about Suricata rules and how to create your own. In this tutorial you will…
🟠 High ⏱ 30–90 min Last verified: 5 December 2022 Affected versions: IBM AIX 7.3 📖 ~4 min read • Source: NVD CVE-2020-4949, IBM Support Bulletin CVE: CVE-2020-4949 NVD summary: IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A […]
One way to guard against out-of-memory errors in applications is to add some swap space to your server. In this guide, we will cover how to add a swap file to an Ubuntu 22.04 server.
How to Configure WSUS for Automated Patch Management on Windows Server 2022 Windows Server Update Services (WSUS) is Microsoft’s built-in solution for managing the distribution of updates released through Microsoft Update to computers in a corporate environment. Rather than allowing every workstation and server to pull updates independently from the internet, WSUS acts as a […]
🟢 Low ⏱ 5–15 min Last verified: 4 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2021-37311 Upstream summary: Buffer Overflow vulnerability in fcitx5 5.0.8 allows attackers to cause a denial of service via crafted message to the application's listening port. Table of contents […]
🟠 High ⏱ 5–30 min Last verified: 4 December 2022 Affected versions: Debian 9 📖 ~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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