Linux

Ubuntu 22.04 — mbedtls — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — mbedtls — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • August 23, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 23 August 2025 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8123-1 Related CVEs: CVE-2025-47917 CVE-2021-44732 CVE-2025-48965 CVE-2025-52497 CVE-2025-52496 CVE-2025-27810 CVE-2024-23775 Upstream summary: It was discovered that Mbed TLS incorrectly handled memory allocation failures. A remote attacker could possibly use this […]

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How to Install Kotlin on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install Kotlin on Debian 13

  • August 23, 2025
  • Linux
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Introduction Deploying install kotlin on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure Debian 13 Trixie is fully updated […]

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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-2026-1178)

  • August 23, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 23 August 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-1178 Related CVEs: CVE-2025-38383 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 10 — kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — kernel — vulnerability — patch and remediation guide (ELSA-2025-12662)

  • August 23, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 23 August 2025 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-12662 Related CVEs: CVE-2025-38264 CVE-2025-38086 CVE-2025-22113 CVE-2025-22020 CVE-2025-38052 CVE-2025-21727 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 — gcc-toolset-15-binutils — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — gcc-toolset-15-binutils — vulnerability — patch and remediation guide

  • August 23, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 23 August 2025 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:1359 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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Alpine Linux 3.20 — tcpflow — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — tcpflow — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • August 23, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 1.5.0-r1 📖 ~4 min read  •  Source: Alpine secdb entry — tcpflow 1.5.0-r1 Related CVEs: CVE-2018-18409 CVE-2018-14938 Upstream summary: Alpine main repository for vv3.20 ships tcpflow 1.5.0-r1 which addresses CVE-2018-18409. Table of contents Symptom & Impact […]

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CentOS Stream 9 — delve — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — delve — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • August 23, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 23 August 2025 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:3773 Related CVEs: CVE-2024-34156 CVE-2025-68121 CVE-2025-58183 Upstream summary: The Go Programming Language. Security Fix(es): * encoding/gob: golang: Calling Decoder.Decode on a message which contains deeply nested structures can cause a panic […]

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SLES 15 — alloy — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — alloy — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • August 23, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 23 August 2025 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:0327-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-68156 CVE-2025-47913 CVE-2025-11065 CVE-2025-58058 Upstream summary: Expr is an expression language and expression evaluation for Go. Prior to version 1.17.7, several builtin functions in Expr, […]

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Common Problems 114068

RHEL 10 MariaDB Service Fails on Startup with Permission Errors

  • August 23, 2025
  • Linux
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🔴 Critical   ⏱ 5–30 min  Last verified: 23 August 2025 Affected versions: RHEL 10 📖 ~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 Errors & […]

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How to Enable WebSocket Proxying in Nginx on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Enable WebSocket Proxying in Nginx on Debian 13

  • August 23, 2025
  • Linux
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Introduction Deploying enable websocket proxying in nginx on a Debian 13 Trixie machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you begin, ensure […]

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