Linux

Debian 11 — php-horde-text-filter — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — php-horde-text-filter — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 8 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-5303 CVE-2021-26929 Upstream summary: Cross-site scripting (XSS) vulnerability in the Horde Text Filter API in Horde Groupware and Horde Groupware Webmail Edition before 5.2.16 allows remote attackers to […]

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How to Install ClickHouse Columnar Database on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install ClickHouse Columnar Database on RHEL 7

How to Install ClickHouse Columnar Database on RHEL 7 ClickHouse is an open-source columnar database management system developed by Yandex, designed specifically for online analytical processing (OLAP) workloads. Unlike traditional row-oriented databases, ClickHouse stores data by column, enabling it to read only the columns needed for a query and compress similar data together — resulting […]

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How to Configure AIDE File Integrity Monitoring on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure AIDE File Integrity Monitoring on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure aide file integrity monitoring on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure AIDE File Integrity Monitoring on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the […]

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AlmaLinux 8 — sos-collector — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — sos-collector — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:1738 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 […]

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

Oracle Linux 8 — samba — security and stability fixes — required update

🔴 Critical   ⏱ 15–90 min  Last verified: 7 January 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-0332 Related CVEs: CVE-2021-44142 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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AlmaLinux 8 — lm_sensors — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — lm_sensors — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2021:4353 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 […]

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Common Problems 121689

Debian 9 Firewall Rules Block Required Service Ports

🟠 High   ⏱ 5–30 min  Last verified: 7 January 2022 Affected versions: Debian 9 📖 ~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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Debian 11 — haskell-xml-conduit — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — haskell-xml-conduit — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-4249 Upstream summary: A vulnerability was found in xml-conduit. It has been classified as problematic. Affected is an unknown function of the file xml-conduit/src/Text/XML/Stream/Parse.hs of the component DOCTYPE […]

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Debian 11 — zip — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — zip — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 7 January 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-1010 CVE-2018-13410 Upstream summary: Buffer overflow in Info-Zip 2.3 and possibly earlier versions, when using recursive folder compression, allows remote attackers to execute arbitrary code via a ZIP […]

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AlmaLinux 8 — libgcrypt — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libgcrypt — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2022:5311 Related CVEs: CVE-2021-40528 CVE-2021-33560 Upstream summary: The libgcrypt library provides general-purpose implementations of various cryptographic algorithms. Security Fix(es): * libgcrypt: ElGamal implementation allows plaintext recovery (CVE-2021-40528) For more details about the […]

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