Security Hardening

Common Problems 114020

RHEL 10 – chronyd not syncing time due to firewall and SELinux policy mismatch – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 28 December 2025 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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Oracle Linux 8 — python-setuptools — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python-setuptools — vulnerability — patch and remediation guide (ELSA-2025-11036)

🟡 Medium   ⏱ 10–30 min  Last verified: 28 December 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-11036 Related CVEs: CVE-2025-47273 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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CentOS Stream 9 — gcc-toolset-13-binutils — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — gcc-toolset-13-binutils — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 December 2025 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:23336 Related CVEs: CVE-2025-11083 Upstream summary: Binutils is a collection of binary utilities, including ar (for creating, modifying and extracting from archives), as (a family of GNU assemblers), gprof (for displaying […]

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Rocky Linux 8 — fontforge — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — fontforge — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:7677 Related CVEs: CVE-2025-15269 CVE-2025-15270 CVE-2025-15275 CVE-2025-15279 Upstream summary: FontForge is a font editor for outline and bitmap fonts. It supports a range of font formats, including PostScript (ASCII and […]

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SLES 16 — libcjose0 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — libcjose0 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 December 2025 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2023:3030-1 (see also SUSE bugzilla) Related CVEs: CVE-2023-37464 Upstream summary: OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM decryption routine incorrectly uses the Tag […]

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FreeBSD 15 — rubygem18-json — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — rubygem18-json — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2025 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Ruby — Denial of Service and Unsafe Object Creation Vulnerability in JSON Related CVEs: CVE-2013-0269 Upstream summary: Aaron Patterson reports: When parsing certain JSON documents, the JSON gem can be […]

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FreeBSD 15 — tinyproxy — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — tinyproxy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2025 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: tinyproxy — ACL lists ineffective when range is configured Related CVEs: CVE-2011-1499 Upstream summary: When including a line to allow a network of IP addresses, the access to tinyproxy 56 […]

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FreeBSD 15 — drupal6-views — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — drupal6-views — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 December 2025 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Drupal Views plugin — cross-site scripting Related CVEs: CVE-2010-4521 Upstream summary: Drupal security team reports: The Views module provides a flexible method for Drupal site designers to control how lists […]

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Amazon Linux 2023 — libcufile-12-9 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — libcufile-12-9 — 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 ALAS2023NVIDIA-2025-205 Related CVEs: CVE-2025-23272 CVE-2025-23247 Upstream summary: NVIDIA nvJPEG library contains a vulnerability where an attacker can cause an out-of-bounds read by means of a specially crafted JPEG file. A […]

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FreeBSD 15 — kde-runtime — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — kde-runtime — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 December 2025 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: kde-runtime — kdesu: displayed command truncated by unicode string terminator Related CVEs: CVE-2013-7252 CVE-2014-8600 CVE-2016-7787 Upstream summary: Albert Aastals Cid reports: A maliciously crafted command line for kdesu can result […]

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