Linux

Arch Linux — glibc — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — glibc — multiple vulnerabilities (9 CVEs) — patch and remediation guide

  • August 8, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201911-3 Related CVEs: CVE-2019-9169 CVE-2018-1000001 CVE-2017-15671 CVE-2017-15670 CVE-2017-1000366 CVE-2021-3326 CVE-2020-29562 CVE-2020-27618  +1 more Upstream summary: Type: information disclosure. Status: Fixed. Affected: 2.29-4. Fixed in: 2.30-1. Group: AVG-855. Table of contents […]

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How to Install Jaeger for Distributed Tracing on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Jaeger for Distributed Tracing on RHEL 8

  • August 8, 2021
  • Linux
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Jaeger is an open-source, end-to-end distributed tracing system originally developed by Uber Technologies and now a CNCF graduated project. It lets you follow a single user request as it propagates across dozens of microservices, measure the latency contribution of each span, and pinpoint the exact service or database call responsible for a slowdown. On RHEL […]

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Oracle Linux 8 — kernel — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — kernel — security and stability fixes — required update (ELSA-2024-4211)

  • August 7, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 7 August 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-4211 Related CVEs: CVE-2023-52877 CVE-2023-52881 CVE-2024-26585 CVE-2024-26675 CVE-2024-26907 CVE-2024-26982 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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AlmaLinux 8 — ostree — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — ostree — vulnerability — patch and remediation guide

  • August 7, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:1883 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Common Problems 118631

Ubuntu 16.04 LTS – kernel module fails due to missing firmware

  • August 7, 2021
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 7 August 2021 Affected versions: Ubuntu 16.04 LTS Ubuntu 16.04 Ubuntu 16.04.7 📖 ~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 […]

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AlmaLinux 8 — gstreamer1 — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — gstreamer1 — vulnerability — patch and remediation guide

  • August 7, 2021
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2020:1631 Related CVEs: CVE-2018-7263 Upstream summary: The GStreamer library provides a streaming media framework based on graphs of media data filters. The libmad package is an MPEG audio decoder capable of 24-bit […]

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How to Install and Configure Dovecot IMAP Server on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure Dovecot IMAP Server on RHEL 7

  • August 7, 2021
  • Linux
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How to Install and Configure Dovecot IMAP Server on RHEL 7 Dovecot is a secure, high-performance IMAP and POP3 server that integrates seamlessly with Postfix on RHEL 7. While Postfix handles the transport of mail (sending and receiving via SMTP), Dovecot provides the retrieval layer — allowing mail clients such as Thunderbird, Outlook, or Apple […]

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AlmaLinux 8 — dleyna-server — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — dleyna-server — multiple vulnerabilities (12 CVEs) — patch and remediation guide

  • August 7, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2021:1586 Related CVEs: CVE-2019-13012 CVE-2020-13543 CVE-2020-13584 CVE-2020-16125 CVE-2020-9948 CVE-2020-9951 CVE-2020-9983 CVE-2021-1817  +4 more Upstream summary: GNOME is the default desktop environment of AlmaLinux. The following packages have been upgraded to a later […]

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Arch Linux — firefox-ublock-origin — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — firefox-ublock-origin — vulnerability — patch and remediation guide

  • August 7, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202107-38 Related CVEs: CVE-2021-36773 Upstream summary: Type: denial of service. Status: Fixed. Affected: 1.36.0-1. Fixed in: 1.36.2-1. Group: AVG-2172. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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