Package Management

Oracle Linux 9 — git — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — git — security and stability fixes — required update (ELSA-2023-2319)

🟡 Medium   ⏱ 10–30 min  Last verified: 9 April 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2319 Related CVEs: CVE-2022-39253 CVE-2022-24765 CVE-2022-29187 CVE-2022-39260 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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How to Install PHP 8.3 on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Install PHP 8.3 on Oracle Linux 9

Introduction This tutorial demonstrates how to Install PHP 8.3 on Oracle Linux 9 on Oracle Linux 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 9 system with the default […]

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Amazon Linux 2023 — libksba — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — libksba — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2023-088 Related CVEs: CVE-2022-3515 Upstream summary: A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for […]

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Alpine Linux edge — rxvt-unicode — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — rxvt-unicode — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 9.31-r0 📖 ~4 min read  •  Source: Alpine secdb entry — rxvt-unicode 9.31-r0 Related CVEs: CVE-2022-4170 CVE-2021-33477 Upstream summary: Alpine community repository for vedge ships rxvt-unicode 9.31-r0 which addresses CVE-2022-4170. Table of contents Symptom & Impact […]

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Debian 11 — cyrus-sasl2 — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — cyrus-sasl2 — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 April 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2002-1347 CVE-2004-0884 CVE-2005-0373 CVE-2006-1721 CVE-2009-0688 CVE-2013-4122 CVE-2019-19906 CVE-2022-24407 Upstream summary: Multiple buffer overflows in Cyrus SASL library 2.1.9 and earlier allow remote attackers to cause a denial of […]

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Ubuntu 22.04 — libnet-cidr-perl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libnet-cidr-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 April 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8110-1 Related CVEs: CVE-2021-4456 Upstream summary: Dave Rolsky discovered that Net-CIDR did not properly sanitize IP addresses. An attacker could possibly use this to bypass IP-based restrictions. Table of contents […]

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Alpine Linux edge — jetty-runner — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — jetty-runner — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 9.4.53.20231009-r0 📖 ~4 min read  •  Source: Alpine secdb entry — jetty-runner 9.4.53.20231009-r0 Related CVEs: CVE-2023-44487 CVE-2023-36478 Upstream summary: Alpine community repository for vedge ships jetty-runner 9.4.53.20231009-r0 which addresses CVE-2023-44487. Table of contents Symptom & Impact […]

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How to Configure IPFilter Rules on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure IPFilter Rules on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure ipfilter rules on ibm aix 7.2 on IBM […]

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Ubuntu 20.04 — lrzip — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — lrzip — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 9 April 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5840-1 Related CVEs: CVE-2018-5786 CVE-2020-25467 CVE-2021-27345 CVE-2021-27347 CVE-2022-26291 CVE-2022-28044 Upstream summary: It was discovered that Long Range ZIP incorrectly handled pointers. If a user or an automated system were tricked […]

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