Ubuntu 18.04 — linux-gke-5.3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

September 22, 2021
Linux
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🟠 High ⏱ 15–60 min Last verified: 22 September 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5014-1 Related CVEs: CVE-2021-33909 CVE-2021-3609 https://launchpad.net/bugs/1924611 CVE-2021-29154 CVE-2021-3492 CVE-2021-3493 CVE-2020-27170 CVE-2020-27171 +12 more Upstream summary: It was discovered that the virtual file system implementation in the Linux kernel contained an […]

Oracle Linux 8 — xorg-x11-server — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — xorg-x11-server — security and stability fixes — required update (ELSA-2023-2806)

September 21, 2021
Linux
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🟡 Medium ⏱ 10–30 min Last verified: 21 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2023-2806 Related CVEs: CVE-2022-46344 CVE-2022-3551 CVE-2022-46342 CVE-2023-0494 CVE-2022-46341 CVE-2022-46343 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

AlmaLinux 8 — pyodbc — vulnerability — patch and remediation guide

September 21, 2021
Linux
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🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALEA-2021:1861 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

How to Configure Network Interface Aggregation on FreeBSD 13

September 21, 2021
FreeBSD
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Introduction How to Configure Network Interface Aggregation 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 packet […]

FreeBSD 13 — isc-dhcp41-relay — vulnerability — patch and remediation guide

September 21, 2021
BSD
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🟢 Low ⏱ 5–15 min Last verified: 21 September 2021 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: isc-dhcpd — Denial of Service Related CVEs: CVE-2015-8605 Upstream summary: ISC reports: A badly formed packet with an invalid IPv4 UDP length field can cause a DHCP server, client, or […]

AlmaLinux 8 — mariadb-connector-c — multiple vulnerabilities (5 CVEs) — patch and remediation guide

September 21, 2021
Linux
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🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read • Source: AlmaLinux ALSA ALSA-2020:5503 Related CVEs: CVE-2020-13249 CVE-2020-2574 CVE-2020-2752 CVE-2020-2922 CVE-2021-2007 Upstream summary: The MariaDB Native Client library (C driver) is used to connect applications developed in C/C++ to MariaDB and MySQL databases. The following […]

FreeBSD 13 — py-urllib — vulnerability — patch and remediation guide

September 21, 2021
BSD
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🟢 Low ⏱ 5–15 min Last verified: 21 September 2021 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: urllib3 — certificate verification failure Related CVEs: CVE-2016-9015 Upstream summary: urllib3 reports: CVE-2016-9015: Certification verification failure Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

FreeBSD 13 — se-openoffice — multiple vulnerabilities (2 CVEs) — patch and remediation guide

September 21, 2021
BSD
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🟢 Low ⏱ 5–15 min Last verified: 21 September 2021 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: openoffice — DOC document heap overflow vulnerability Related CVEs: CVE-2004-0752 CVE-2005-0941 Upstream summary: AD-LAB reports that a heap-based buffer overflow vulnerability exists in OpenOffice's handling of DOC documents. When reading […]

FreeBSD 13 — halibut — multiple vulnerabilities (3 CVEs) — patch and remediation guide

September 21, 2021
BSD
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🟡 Medium ⏱ 10–30 min Last verified: 21 September 2021 Affected versions: FreeBSD 13 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: halibut — Segmentation fault, denial of service or possibly other unspecified impact via a crafted text document Related CVEs: CVE-2021-42612 CVE-2021-42613 CVE-2021-42614 Upstream summary: [email protected] reports: CVE-2021-42612: A use after […]

How to Set Up DNS Policies on Windows Server 2019

September 21, 2021
Tutorials
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Introduction to DNS Policies on Windows Server 2019 DNS Policies, introduced in Windows Server 2016 and fully supported in Windows Server 2019, allow the DNS server to make intelligent decisions about how to respond to queries based on criteria such as the client’s IP address or subnet, the time of day, the query type, or […]

Operations

Ubuntu 18.04 — linux-gke-5.3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

Oracle Linux 8 — xorg-x11-server — security and stability fixes — required update (ELSA-2023-2806)

AlmaLinux 8 — pyodbc — vulnerability — patch and remediation guide

How to Configure Network Interface Aggregation on FreeBSD 13

FreeBSD 13 — isc-dhcp41-relay — vulnerability — patch and remediation guide

AlmaLinux 8 — mariadb-connector-c — multiple vulnerabilities (5 CVEs) — patch and remediation guide

FreeBSD 13 — py-urllib — vulnerability — patch and remediation guide

FreeBSD 13 — se-openoffice — multiple vulnerabilities (2 CVEs) — patch and remediation guide

FreeBSD 13 — halibut — multiple vulnerabilities (3 CVEs) — patch and remediation guide

How to Set Up DNS Policies on Windows Server 2019

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