Linux

Ubuntu 18.04 — linux-gke-5.3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — linux-gke-5.3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • September 22, 2021
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 22 September 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5014-1 Related CVEs: CVE-2021-33909 CVE-2021-3609 https://launchpad.net/bugs/1924611 CVE-2021-29154 CVE-2021-3492 CVE-2021-3493 CVE-2020-27170 CVE-2020-27171  +12 more Upstream summary: It was discovered that the virtual file system implementation in the Linux kernel contained an […]

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Oracle Linux 8 — xorg-x11-server — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — xorg-x11-server — security and stability fixes — required update (ELSA-2023-2806)

  • September 21, 2021
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 21 September 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2806 Related CVEs: CVE-2022-46344 CVE-2022-3551 CVE-2022-46342 CVE-2023-0494 CVE-2022-46341 CVE-2022-46343 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 — pyodbc — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — pyodbc — vulnerability — patch and remediation guide

  • September 21, 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 ALEA-2021:1861 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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AlmaLinux 8 — mariadb-connector-c — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — mariadb-connector-c — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • September 21, 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-2020:5503 Related CVEs: CVE-2020-13249 CVE-2020-2574 CVE-2020-2752 CVE-2020-2922 CVE-2021-2007 Upstream summary: The MariaDB Native Client library (C driver) is used to connect applications developed in C/C++ to MariaDB and MySQL databases. The following […]

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Debian 11 — manila — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — manila — vulnerability — patch and remediation guide

  • September 21, 2021
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 21 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-9543 Upstream summary: OpenStack Manila <7.4.1, >=8.0.0 <8.1.1, and >=9.0.0 <9.1.1 allows attackers to view, update, delete, or share resources that do not belong to them, because of […]

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AlmaLinux 8 — qt5-qt3d — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — qt5-qt3d — vulnerability — patch and remediation guide

  • September 21, 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-2021:4172 Related CVEs: CVE-2021-3481 Upstream summary: Qt is a software toolkit for developing applications. The following packages have been upgraded to a later upstream version: adwaita-qt (1.2.1), python-qt5 (5.15.0), qgnomeplatform (0.7.1), qt5 […]

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Debian 11 — bird2 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — bird2 — vulnerability — patch and remediation guide

  • September 21, 2021
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 21 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-16159 Upstream summary: BIRD Internet Routing Daemon 1.6.x through 1.6.7 and 2.x through 2.0.5 has a stack-based buffer overflow. The BGP daemon's support for RFC 8203 administrative shutdown […]

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Debian 11 — scummvm — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — scummvm — vulnerability — patch and remediation guide

  • September 21, 2021
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 21 September 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-17528 Upstream summary: backends/platform/sdl/posix/posix.cpp in ScummVM 1.9.0 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct […]

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Arch Linux — lib32-glibc — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — lib32-glibc — multiple vulnerabilities (8 CVEs) — patch and remediation guide

  • September 21, 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-201801-18 Related CVEs: CVE-2018-1000001 CVE-2017-15671 CVE-2017-15670 CVE-2017-1000366 CVE-2021-3326 CVE-2020-29562 CVE-2020-27618 CVE-2019-25013 Upstream summary: Type: privilege escalation. Status: Fixed. Affected: 2.26-10. Fixed in: 2.26-11. Group: AVG-590. Table of contents Symptom & […]

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How To Set Up Time Synchronization on Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Set Up Time Synchronization on Ubuntu 20.04

  • September 21, 2021
  • Linux
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Accurate timekeeping is integral to modern software deployments. Without it, you may encounter data corruption, errors, and other issues that are difficult to debug. In this article, you will practice some general time-related commands, verify that timesyncd is active, and install an alternate network time service.

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