Security Hardening

How to Configure Database Backups with Automysqlbackup on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Database Backups with Automysqlbackup on Debian 9

Introduction This guide explains how to Configure Database Backups with Automysqlbackup on Debian 9 on Debian 9 Stretch. Debian Stretch uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 9 install with […]

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Common Problems 113592

Windows Server 2012 R2 DFS Namespace Referrals Slow Due to Overloaded File Targets – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 30 August 2019 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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FreeBSD 12 — py34-rsa — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py34-rsa — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-rsa — Bleichenbacher'06 signature forgery vulnerability Related CVEs: CVE-2016-1494 Upstream summary: Filippo Valsorda reports: python-rsa is vulnerable to a straightforward variant of the Bleichenbacher'06 attack against RSA signature verification with […]

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How to Use IBM Performance Inspector on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use IBM Performance Inspector on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use ibm performance inspector on ibm aix 7.2 on […]

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FreeBSD 12 — matomo — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — matomo — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: matomo — XSS vulnerability Upstream summary: Matomo reports: Several XSS issues have been fixed thanks to the great work of security researchers who responsible disclosed issues to us. Table of […]

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Ubuntu 16.04 — apparmor — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — apparmor — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 August 2019 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4008-2 Related CVEs: CVE-2019-11190 https://launchpad.net/bugs/1788929 https://launchpad.net/bugs/1794848 CVE-2017-6507 Upstream summary: USN-4008-1 fixed multiple security issues in the Linux kernel. This update provides the corresponding changes to AppArmor policy for correctly operating […]

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SLES 15 — libXtst6 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — libXtst6 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 August 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2013:1103-1 (see also SUSE bugzilla) Related CVEs: CVE-2013-2063 Upstream summary: Integer overflow in X.org libXtst 1.2.1 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via […]

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openSUSE Tumbleweed — python36-reportlab — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python36-reportlab — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:0160-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-17626 Upstream summary: ReportLab through 3.5.26 allows remote code execution because of toColor(eval(arg)) in colors.py, as demonstrated by a crafted XML document with '<span color="' […]

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Oracle Linux 8 — grub2 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — grub2 — vulnerability — patch and remediation guide (ELSA-2019-4869)

🟠 High   ⏱ 15–60 min  Last verified: 30 August 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-4869 Related CVEs: CVE-2019-14865 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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FreeBSD 12 — linux-c6-openssl — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — linux-c6-openssl — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 30 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenSSL — Padding oracle vulnerability Related CVEs: CVE-2014-3513 CVE-2014-3566 CVE-2014-3567 CVE-2014-3568 CVE-2014-3569 CVE-2014-3570 CVE-2014-3571 CVE-2014-3572  +12 more Upstream summary: The OpenSSL project reports: 0-byte record padding oracle (CVE-2019-1559) (Moderate) If […]

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