Operations

Ubuntu 22.04 — ruby-rack — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — ruby-rack — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • July 31, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 31 July 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8182-1 Related CVEs: CVE-2026-34785 CVE-2026-26962 CVE-2026-26961 CVE-2026-34230 CVE-2026-34830 CVE-2026-34763 CVE-2026-34827 CVE-2026-32762  +12 more Upstream summary: Andrew Lacambra discovered that Rack did not properly parse certain regular expressions. An attacker could […]

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How to Install SQLite3 on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install SQLite3 on FreeBSD 15

  • July 31, 2026
  • FreeBSD
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Introduction This guide explains how to Install SQLite3 on FreeBSD 15 on FreeBSD 15. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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Windows Server 2019 — KB5075897 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5075897 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5075897 • MSRC update-guide entry Related CVEs: CVE-2026-21519 CVE-2026-21248 CVE-2026-21247 CVE-2026-21234 CVE-2026-21236 CVE-2026-21533 CVE-2026-21513 CVE-2026-21510  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Access of resource using incompatible […]

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Ubuntu 24.04 — openssl — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — openssl — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • July 31, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 31 July 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8155-1 Related CVEs: CVE-2026-28387 CVE-2026-2673 CVE-2026-31790 CVE-2026-28388 CVE-2026-28389 CVE-2026-31789 CVE-2026-28390 CVE-2026-22796  +12 more Upstream summary: Viktor Dukhovni discovered that OpenSSL incorrectly negotiated the expected preferred key exchange group when used […]

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

Oracle Linux 10 — vsftpd — vulnerability — patch and remediation guide (ELSA-2026-0606)

  • July 31, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 31 July 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-0606 Related CVEs: CVE-2025-14242 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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SLES 16 — python313-numpy — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — python313-numpy — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • July 31, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 31 July 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:314-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-33430 CVE-2017-12852 CVE-2019-6446 CVE-2021-41495 CVE-2021-41496 Upstream summary: A Buffer Overflow vulnerability exists in NumPy 1.9.x in the PyArray_NewFromDescr_int function of ctors.c when specifying arrays of […]

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Oracle Linux 10 — mysql8.4 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — mysql8.4 — vulnerability — patch and remediation guide (ELSA-2026-4162)

  • July 31, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 31 July 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-4162 Related CVEs: CVE-2026-21936 CVE-2026-21937 CVE-2026-21941 CVE-2026-21948 CVE-2026-21964 CVE-2026-21968 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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

Oracle Linux 10 — kernel — vulnerability — patch and remediation guide (ELSA-2026-6053)

  • July 31, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 31 July 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-6053 Related CVEs: CVE-2025-71238 CVE-2026-23231 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How to Set Up MongoDB Replica Set on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up MongoDB Replica Set on FreeBSD 15

  • July 31, 2026
  • FreeBSD
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Introduction How to Set Up MongoDB Replica Set on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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

Oracle Linux 10 — kernel — vulnerability — patch and remediation guide (ELSA-2026-0786)

  • July 31, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 31 July 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-0786 Related CVEs: CVE-2025-68285 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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