Fix Prevention

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 12 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mathopd — directory traversal vulnerability Upstream summary: Michiel Boland reports: The software has a vulnerability that could lead to directory traversal if the '*' construct for mass virtual hosting is […]

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How to Set Up DHCP Failover on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up DHCP Failover on Windows Server 2019

Introduction to DHCP Failover on Windows Server 2019 DHCP Failover allows two Windows Server 2019 DHCP servers to share address assignment responsibility for a scope, providing high availability and load balancing for IP address leasing. Without failover, a single DHCP server failure means clients cannot renew leases or obtain new ones — which causes network […]

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FreeBSD 12 — shibboleth-sp — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — shibboleth-sp — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Shibboleth Service Provider — SQL injection vulnerability in ODBC plugin Related CVEs: CVE-2015-2684 Upstream summary: Internet2 reports: The Shibboleth Service Provider includes a storage API usable for a number of […]

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Debian 10 — h2o — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — h2o — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 September 2019 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-9512 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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SLES 15 — python3-websockets — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — python3-websockets — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 September 2019 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2023:2854-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-1000518 Upstream summary: aaugustin websockets version 4 contains a CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in Servers and clients, unless configured […]

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Oracle Linux 8 — libjpeg-turbo — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libjpeg-turbo — vulnerability — patch and remediation guide (ELSA-2019-3705)

🟡 Medium   ⏱ 10–30 min  Last verified: 12 September 2019 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-3705 Related CVEs: CVE-2018-14498 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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Common Problems 118059

Ubuntu 18.04 LTS Apache 503 Service Unavailable Under Load

🟠 High   ⏱ 5–30 min  Last verified: 11 September 2019 Affected versions: 18.04 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 & […]

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How to Monitor Windows Server 2012 R2 with Performance Monitor — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Monitor Windows Server 2012 R2 with Performance Monitor

How to Monitor Windows Server 2012 R2 with Performance Monitor Performance Monitor (PerfMon) is the built-in diagnostic tool in Windows Server 2012 R2 for collecting, analysing, and logging performance data from the operating system, hardware, and applications. It provides real-time graphing of hundreds of performance counters covering CPU, memory, disk, network, and application-specific metrics. When […]

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Common Problems 114914

RHEL 8 systemctl Service Fails to Start After Boot

🟡 Medium   ⏱ 5–30 min  Last verified: 11 September 2019 📖 ~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 […]

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FreeBSD 12 — ircd-ratbox-devel — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ircd-ratbox-devel — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 September 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: irc-ratbox — multiple vulnerabilities Related CVEs: CVE-2009-4016 CVE-2010-0300 Upstream summary: SecurityFocus reports: The first affects the /quote HELP module and allows a user to trigger an IRCD crash on some […]

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CHAT