Linux

Oracle Linux 9 — unbound — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — unbound — vulnerability — patch and remediation guide (ELSA-2024-1750)

🟠 High   ⏱ 15–60 min  Last verified: 20 January 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-1750 Related CVEs: CVE-2024-1488 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 — python-dns — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — python-dns — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:5994 Related CVEs: CVE-2023-40217 CVE-2023-24329 CVE-2023-29483 CVE-2022-40897 CVE-2022-48560 CVE-2022-48565 CVE-2023-43804 CVE-2024-22195  +12 more Upstream summary: Python is an interpreted, interactive, object-oriented programming language that supports modules, classes, exceptions, high-level dynamic data types, […]

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Debian 12 — unzip — multiple vulnerabilities (19 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — unzip — multiple vulnerabilities (19 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 19 January 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0282 CVE-2005-0602 CVE-2005-2475 CVE-2005-4667 CVE-2008-0888 CVE-2014-8139 CVE-2014-8140 CVE-2014-8141  +11 more Upstream summary: Directory traversal vulnerability in UnZip 5.50 allows attackers to overwrite arbitrary files via invalid characters between […]

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Debian 12 — php-gettext — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — php-gettext — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 January 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8980 CVE-2016-6175 Upstream summary: The plural form formula in ngettext family of calls in php-gettext before 1.0.12 allows remote attackers to execute arbitrary code. Table of contents Symptom […]

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How to Manage Systemd Services and Units on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Manage Systemd Services and Units on RHEL 9

Systemd is the init system and service manager for RHEL 9 — it is PID 1, the parent of every other process on the system. Understanding how to manage systemd services is foundational to every other administrative task: installing Nginx means enabling the nginx service; configuring a database means understanding its unit file; debugging a […]

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Debian 12 — ruby-xmlhash — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ruby-xmlhash — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 January 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-21949 Upstream summary: A Improper Restriction of XML External Entity Reference vulnerability in SUSE Open Build Service allows remote attackers to reference external entities in certain operations. This […]

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Debian 12 — libjettison-java — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libjettison-java — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 19 January 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-40149 CVE-2022-40150 CVE-2022-45685 CVE-2022-45693 CVE-2023-1436 CVE-2023-5072 Upstream summary: Those using Jettison to parse untrusted XML or JSON data may be vulnerable to Denial of Service attacks (DOS). If […]

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Debian 12 — agg — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — agg — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 January 2024 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-6245 Upstream summary: An issue was discovered in Anti-Grain Geometry (AGG) 2.4 as used in SVG++ (aka svgpp) 1.2.3. In the function agg::cell_aa::not_equal, dx is assigned to (x2 […]

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openSUSE Tumbleweed — rmt-server — multiple vulnerabilities (18 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — rmt-server — multiple vulnerabilities (18 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2020:1677-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-8165 CVE-2022-31254 CVE-2023-27530 CVE-2019-16770 CVE-2019-18904 CVE-2019-5420 CVE-2020-15169 CVE-2020-8164  +10 more Upstream summary: A deserialization of untrusted data vulnernerability exists in rails < 5.2.4.3, rails < […]

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