Package Management

IBM AIX 7.2 — CVE-2022-22454 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.2

IBM AIX 7.2 — CVE-2022-22454 — vulnerability — patch and remediation guide

🟠 High   ⏱ 30–90 min  Last verified: 28 December 2022 Affected versions: IBM AIX 7.2 📖 ~4 min read  •  Source: NVD CVE-2022-22454, IBM Support Bulletin CVE: CVE-2022-22454 NVD summary: IBM InfoSphere Information Server 11.7 could allow a locally authenticated attacker to execute arbitrary commands on the system by sending a specially crafted request. […]

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How to Configure SELinux on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure SELinux on RHEL 8

SELinux (Security-Enhanced Linux) is a mandatory access control (MAC) framework built into the Linux kernel and enabled by default on every RHEL 8 installation. Unlike discretionary access controls such as standard Unix permissions, SELinux enforces policy rules that confine processes to only the files, sockets, and capabilities they legitimately require, limiting the blast radius of […]

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IBM AIX 7.3 — CVE-2022-40747 — vulnerability — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2022-40747 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 27 December 2022 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-2022-40747, IBM Support Bulletin CVE: CVE-2022-40747 NVD summary: "IBM InfoSphere Information Server 11.7 is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit […]

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

Debian 11 — hunspell — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-16707 Upstream summary: Hunspell 1.7.0 has an invalid read operation in SuggestMgr::leftcommonsubstring in suggestmgr.cxx. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Common Problems 114416

RPM Database Corruption on RHEL 9

🟡 Medium   ⏱ 5–30 min  Last verified: 27 December 2022 📖 ~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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Initial Server Setup with IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

Initial Server Setup with IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to server setup with ibm aix 7.3 on IBM AIX […]

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

Debian 11 — filter — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1272 Upstream summary: Buffer overflow in the save_embedded_address function in filter.c for elm/bolthole filter 2.6.1 allows remote attackers to execute arbitrary code via a crafted email message. Table […]

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

Debian 11 — xsok — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0949 Upstream summary: xsok 1.02 does not properly drop privileges before finding and executing the "gunzip" program, which allows local users to execute arbitrary commands. Table of contents […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2022-9689)

🟠 High   ⏱ 15–60 min  Last verified: 27 December 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-9689 Related CVEs: CVE-2022-2588 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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