Security Hardening

Amazon Linux 2 — python-reportlab — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — python-reportlab — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2285 Related CVEs: CVE-2019-17626 CVE-2019-19450 Upstream summary: paraparser in ReportLab before 3.5.31 allows remote code execution because start_unichar in paraparser.py evaluates untrusted user input in a unichar element in a […]

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Gentoo Linux — dev-python/cryptography — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-python/cryptography — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202407-06 Related CVEs: CVE-2020-36242 CVE-2023-23931 CVE-2023-49083 CVE-2024-26130 Upstream summary: Multiple vulnerabilities have been discovered in cryptography. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment […]

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Rocky Linux 8 — perl-Pod-Simple — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 8

Rocky Linux 8 — perl-Pod-Simple — vulnerability — patch and remediation guide

🟡 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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Arch Linux — openexr — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — openexr — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202107-14 Related CVEs: CVE-2021-3598 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 3.0.4-1. Fixed in: 3.0.5-1. Group: AVG-2071. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Alpine Linux 3.18 — csync2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — csync2 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 2.0-r3 📖 ~4 min read  •  Source: Alpine secdb entry — csync2 2.0-r3 Related CVEs: CVE-2019-15522 CVE-2019-15523 Upstream summary: Alpine community repository for vv3.18 ships csync2 2.0-r3 which addresses CVE-2019-15522. Table of contents Symptom & Impact […]

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Windows Server 2016 — KB5040434 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5040434 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5040434 • MSRC update-guide entry Related CVEs: CVE-2024-38060 CVE-2024-38077 CVE-2024-38074 CVE-2024-38076 CVE-2024-38184 CVE-2024-38191 CVE-2024-38185 CVE-2024-38186  +12 more Affected components: Windows Server 2016 Windows Server 2016 (Server Core installation) Microsoft .NET Framework 3.5 […]

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openSUSE Leap 15.5 — python3-PyPDF2 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — python3-PyPDF2 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2024:0366-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-24859 Upstream summary: PyPDF2 is an open source python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. In […]

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NetBSD 9.4 — feh — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — feh — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2017-7875 Upstream summary: pkgsrc audit-packages flagged feh<1.11.2 for vulnerability class 'privilege-escalation'. Reference: http://secunia.com/advisories/43221/ Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Red Hat Enterprise Linux 10 — cockpit — vulnerability — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 10 — cockpit — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 10 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:7383 Related CVEs: CVE-2026-4631 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative […]

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AlmaLinux 8 — log4j12 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — log4j12 — multiple vulnerabilities (2 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-2025:9318 Related CVEs: CVE-2019-10086 CVE-2025-48734 Upstream summary: The javapackages-tools packages provide macros and scripts to support Java packaging. Security Fix(es): * apache-commons-beanutils: does not suppresses the class property in PropertyUtilsBean by default […]

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