How To Create a Self-Signed SSL Certificate for Apache on CentOS 8
In this guide, we will show you how to create and configure a self-signed TLS/SSL certificate with the Apache web server on a CentOS 8 machine.
How to Configure GlusterFS Distributed Storage on RHEL 7
How to Configure GlusterFS Distributed Storage on RHEL 7 GlusterFS is a scalable, open-source distributed filesystem that aggregates storage from multiple servers into a single, unified namespace. It is commonly used for high-availability shared storage in environments without expensive SAN hardware. RHEL 7 can consume GlusterFS via the CentOS Storage SIG repository or the upstream […]
Ubuntu 14.04 LTS CA certificates outdated causing HTTPS failures
🟡 Medium ⏱ 5–30 min Last verified: 3 November 2022 Affected versions: 14.04 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 & […]
Debian 11 — matanza — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 3 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2009-3560 CVE-2009-3720 Upstream summary: The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a […]
Ubuntu 14.04 LTS unmet dependencies during apt install
🟡 Medium ⏱ 5–30 min Last verified: 3 November 2022 📖 ~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 & Cross-Refs References & Further […]
Debian 11 — gnome-subtitles — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 3 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2010-3357 Upstream summary: gnome-subtitles 1.0 places a zero-length directory name in the LD_LIBRARY_PATH, which allows local users to gain privileges via a Trojan horse shared library in the […]
openSUSE Tumbleweed — apache-ivy — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2023:4367-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-46751 CVE-2022-37865 CVE-2022-37866 Upstream summary: Improper Restriction of XML External Entity Reference, XML Injection (aka Blind XPath Injection) vulnerability in Apache Software Foundation Apache Ivy.This […]
Ubuntu 22.04 LTS – Cloud-init overwrites netplan on reboot – Fix & Prevention
🟡 Medium ⏱ 5–30 min Last verified: 3 November 2022 Affected versions: Ubuntu 22.04 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 […]
Ubuntu 16.04 — batik — multiple vulnerabilities (7 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 3 November 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6117-1 Related CVEs: CVE-2019-17566 CVE-2020-11987 CVE-2022-38398 CVE-2022-38648 CVE-2022-40146 CVE-2022-41704 CVE-2022-42890 Upstream summary: It was discovered that Apache Batik incorrectly handled certain inputs. An attacker could possibly use this to perform […]
RHEL 8 – SSH Login Fails Due to Incorrect SELinux Contexts
🟡 Medium ⏱ 5–30 min Last verified: 3 November 2022 📖 ~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 & Cross-Refs References & Further […]