Security Hardening

Debian 13 — libpng1.6 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — libpng1.6 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • December 30, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 December 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-7353 CVE-2013-7354 CVE-2014-0333 CVE-2014-9495 CVE-2015-0973 CVE-2015-8472 CVE-2016-10087 CVE-2017-12652  +12 more Upstream summary: Integer overflow in the png_set_unknown_chunks function in libpng/pngset.c in libpng before 1.5.14beta08 allows context-dependent attackers to […]

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Debian 13 — rust-miow — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — rust-miow — vulnerability — patch and remediation guide

  • December 30, 2025
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 30 December 2025 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-35921 Upstream summary: An issue was discovered in the miow crate before 0.3.6 for Rust. It has false expectations about the std::net::SocketAddr memory representation. Table of contents Symptom & […]

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Rocky Linux 8 — perl-Math-BigInt-FastCalc — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — perl-Math-BigInt-FastCalc — vulnerability — patch and remediation guide

  • December 30, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 8 📖 ~4 min read  •  Source: Rocky Linux RXSA RLSA-2026:8096 Related CVEs: CVE-2025-40909 Upstream summary: Perl is a high-level programming language that is commonly used for system administration utilities and web programming. Security Fix(es): * perl: Perl threads have […]

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How to Configure a Patroni PostgreSQL Cluster on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Configure a Patroni PostgreSQL Cluster on Oracle Linux 10

Introduction Setting up configure a patroni postgresql cluster on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure a Patroni PostgreSQL Cluster on Oracle Linux 10, with all the commands you need, the SELinux and firewalld […]

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Oracle Linux 10 — podman — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — podman — vulnerability — patch and remediation guide (ELSA-2025-23295)

  • December 30, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 30 December 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-23295 Related CVEs: CVE-2025-58183 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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Oracle Linux 9 — ipa — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — ipa — vulnerability — patch and remediation guide (ELSA-2025-20928)

  • December 30, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 December 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-20928 Related CVEs: CVE-2025-7493 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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Oracle Linux 8 — git-lfs — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — git-lfs — vulnerability — patch and remediation guide (ELSA-2026-2323)

  • December 30, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 December 2025 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-2323 Related CVEs: CVE-2025-61729 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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Oracle Linux 9 — openssl — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — openssl — vulnerability — patch and remediation guide (ELSA-2026-50075)

  • December 30, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 December 2025 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-50075 Related CVEs: CVE-2025-11187 CVE-2025-15467 CVE-2025-15468 CVE-2025-15469 CVE-2025-66199 CVE-2025-68160 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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CentOS Stream 9 — expat — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — expat — multiple vulnerabilities (12 CVEs) — patch and remediation guide

  • December 30, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 30 December 2025 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:22175 Related CVEs: CVE-2025-59375 CVE-2022-40674 CVE-2024-8176 CVE-2024-50602 CVE-2024-45490 CVE-2024-45491 CVE-2024-45492 CVE-2023-52425  +4 more Upstream summary: Expat is a C library for parsing XML documents. Security Fix(es): * expat: libexpat in Expat […]

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SLES 16 — bsdtar — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — bsdtar — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • December 30, 2025
  • Linux
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🔴 Critical   ⏱ 15–90 min  Last verified: 30 December 2025 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SR:2007:015 (see also SUSE bugzilla) Related CVEs: CVE-2007-3641 CVE-2022-26280 CVE-2024-20696 CVE-2024-26256 CVE-2006-5680 CVE-2007-3644 CVE-2007-3645 CVE-2015-2304  +12 more Upstream summary: archive_read_support_format_tar.c in libarchive before 2.2.4 does not properly compute the length of a […]

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