Package Management

Ubuntu 14.04 — screen — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — screen — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 April 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6198-1 Related CVEs: CVE-2023-24626 CVE-2021-26937 CVE-2015-6806 Upstream summary: It was discovered that GNU Screen was not properly checking user identifiers before sending certain signals to target processes. If GNU Screen […]

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Gentoo Linux — dev-lang/perl — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-lang/perl — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202411-09 Related CVEs: CVE-2021-36770 CVE-2023-31486 CVE-2023-47038 CVE-2020-10543 CVE-2020-10878 CVE-2020-12723 Upstream summary: Multiple vulnerabilities have been discovered in Perl. Please review the CVE identifiers referenced below for details. Table of contents Symptom & […]

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Ubuntu 14.04 — zookeeper — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — zookeeper — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 12 April 2023 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6559-1 Related CVEs: CVE-2019-0201 CVE-2023-44981 CVE-2016-5017 CVE-2017-5637 CVE-2018-8012 Upstream summary: It was discovered that ZooKeeper incorrectly handled authorization for the getACL() command. A remote attacker could possibly use this issue […]

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How to Set Up Windows Server 2022 Container Networking — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Set Up Windows Server 2022 Container Networking

What Is the Microsoft Security Compliance Toolkit? The Microsoft Security Compliance Toolkit (SCT) is a free collection of tools and security baseline documents published by Microsoft to help organizations implement and verify security configurations on Windows operating systems, server roles, and Microsoft applications. Unlike third-party benchmarks, the SCT baselines are developed by the same engineers […]

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Ubuntu 22.04 — linux-hwe-5.19 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — linux-hwe-5.19 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 April 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6260-1 Related CVEs: CVE-2022-48502 CVE-2023-2640 CVE-2023-3090 CVE-2023-31248 CVE-2023-3141 CVE-2023-32629 CVE-2023-3389 CVE-2023-3390  +12 more Upstream summary: It was discovered that the NTFS file system implementation in the Linux kernel did not […]

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

Oracle Linux 8 — conmon — vulnerability — patch and remediation guide (ELSA-2023-13054)

🟠 High   ⏱ 15–60 min  Last verified: 12 April 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-13054 Related CVEs: CVE-2023-44487 CVE-2023-39325 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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

Oracle Linux 8 — tomcat — vulnerability — patch and remediation guide (ELSA-2023-5928)

🟠 High   ⏱ 15–60 min  Last verified: 12 April 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5928 Related CVEs: CVE-2023-44487 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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How to Set Up ZFS on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up ZFS on RHEL 8

ZFS is a combined file system and logical volume manager renowned for its data integrity guarantees, transparent compression, built-in snapshotting, and copy-on-write architecture. While ZFS is not included in the RHEL 8 kernel, the OpenZFS project provides compatible DKMS packages that build the kernel module on demand. This tutorial covers adding the OpenZFS repository, installing […]

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Oracle Linux 9 — java-11-openjdk — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — java-11-openjdk — security and stability fixes — required update (ELSA-2023-4158)

🟡 Medium   ⏱ 10–30 min  Last verified: 11 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-4158 Related CVEs: CVE-2023-22036 CVE-2023-22041 CVE-2023-22049 CVE-2023-22006 CVE-2023-25193 CVE-2023-22045 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Amazon Linux 2023 — memcached — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — memcached — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2023-449 Related CVEs: CVE-2023-46852 CVE-2023-46853 Upstream summary: In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if there are many spaces after the "get" […]

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