Logging Monitoring

Debian 11 — libmaxminddb — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libmaxminddb — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-28241 Upstream summary: libmaxminddb before 1.4.3 has a heap-based buffer over-read in dump_entry_data_list in maxminddb.c. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick […]

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Debian 11 — kde-cli-tools — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — kde-cli-tools — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-7787 Upstream summary: A maliciously crafted command line for kdesu can result in the user only seeing part of the commands that will actually get executed as super […]

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Oracle Linux 8 — libgcrypt — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libgcrypt — security and stability fixes — required update (ELSA-2021-4409)

🟡 Medium   ⏱ 10–30 min  Last verified: 23 October 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4409 Related CVEs: CVE-2021-33560 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 13 — dpkg — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — dpkg — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: dpkg — stack-based buffer overflow Related CVEs: CVE-2015-0860 Upstream summary: Salvatore Bonaccorso reports: Hanno Boeck discovered a stack-based buffer overflow in the dpkg-deb component of dpkg, the Debian package management […]

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Debian 11 — virtualbox-guest-additions-iso — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — virtualbox-guest-additions-iso — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 23 October 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-2300 CVE-2012-0105 CVE-2014-0405 CVE-2014-2441 CVE-2014-6540 CVE-2018-2693 Upstream summary: Unspecified vulnerability in Oracle VM VirtualBox 3.0, 3.1, 3.2, and 4.0 through 4.0.8 allows local users to affect confidentiality, integrity, […]

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Common Problems 118446

Ubuntu 16.04 LTS – interface stays down after boot

🟠 High   ⏱ 5–30 min  Last verified: 23 October 2021 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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 […]

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FreeBSD 13 — isc-dhcpd — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — isc-dhcpd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 October 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: isc-dhcpd — format string vulnerabilities Related CVEs: CVE-2004-1006 Upstream summary: The ISC DHCP programs are vulnerable to several format string vulnerabilities which may allow a remote attacker to execute arbitrary […]

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Common Problems 117468

Ubuntu 20.04 LTS – /boot is full and kernel upgrades fail

🟠 High   ⏱ 5–30 min  Last verified: 23 October 2021 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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 […]

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How to Set Up iocage Jail Storage on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up iocage Jail Storage on FreeBSD 13

Introduction How to Set Up iocage Jail Storage on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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Common Problems 113098

Windows Server 2016 – BitLocker boot-start filter driver delays startup – Fix and Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 23 October 2021 Affected versions: Windows Server 2016 📖 ~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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