Fix Prevention

How to Configure MySQL Group Replication on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure MySQL Group Replication on SLES 15

Introduction This tutorial covers How to Configure MySQL Group Replication on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper […]

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FreeBSD 12 — linux-f10-openldap — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — linux-f10-openldap — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: OpenLDAP — incorrect handling of NULL in certificate Common Name Related CVEs: CVE-2009-3767 Upstream summary: Jan Lieskovsky reports: OpenLDAP does not properly handle a '\0' character in a domain name […]

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FreeBSD 12 — linux-pango — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — linux-pango — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: pango — integer overflow Related CVEs: CVE-2009-1194 Upstream summary: oCERT reports: Pango suffers from a multiplicative integer overflow which may lead to a potentially exploitable, heap overflow depending on the […]

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How to Set Up SonarQube Code Analysis on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up SonarQube Code Analysis on Debian 9

Introduction How to Set Up SonarQube Code Analysis on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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FreeBSD 12 — ja-netscape-communicator-linux — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ja-netscape-communicator-linux — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 16 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libpng stack-based buffer overflow and other code concerns Related CVEs: CVE-2004-0597 CVE-2004-0598 CVE-2004-0599 Upstream summary: Chris Evans has discovered multiple vulnerabilities in libpng, which can be exploited by malicious people […]

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FreeBSD 12 — py39-kerberos — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py39-kerberos — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-kerberos — DoS and MitM vulnerabilities Related CVEs: CVE-2015-3206 Upstream summary: macosforgebot reports: The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows […]

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How to Configure QoS Policies on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure QoS Policies on Windows Server 2016

How to Set Up Windows Server 2016 QoS Policies Quality of Service (QoS) policies in Windows Server 2016 allow administrators to prioritize network traffic based on application, protocol, port, or IP address. By assigning different traffic classes specific bandwidth allocations and priorities, QoS prevents low-priority traffic from consuming bandwidth at the expense of business-critical applications. […]

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FreeBSD 12 — linux_base-c — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — linux_base-c — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 16 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: glibc — getaddrinfo stack-based buffer overflow Related CVEs: CVE-2014-6271 CVE-2014-7169 CVE-2015-0235 CVE-2015-7547 Upstream summary: Fabio Olive Leite reports: A stack-based buffer overflow was found in libresolv when invoked from nss_dns, […]

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How to Configure Suricata IDS/IPS on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Suricata IDS/IPS on RHEL 7

How to Configure Suricata IDS/IPS on RHEL 7 Suricata is a high-performance, open-source network threat detection engine maintained by the Open Information Security Foundation (OISF). It can operate as an Intrusion Detection System (IDS), passively monitoring traffic and alerting on suspicious patterns, or as an Intrusion Prevention System (IPS), actively blocking malicious connections using the […]

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Common Problems 121621

Debian 9 – unattended-upgrades Leaves Pending Reboot Drift – Controlled Patch Flow

🟡 Medium   ⏱ 5–30 min  Last verified: 15 September 2019 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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