Linux

Ubuntu 20.04 — postfix — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — postfix — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • October 8, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 8 October 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6591-2 Related CVEs: CVE-2023-51764 https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/2049337 https://bugs.launchpad.net/ubuntu/+source/postfix/+bug/2050834 Upstream summary: USN-6591-1 fixed vulnerabilities in Postfix. A fix with less risk of regression has been made available since the last update. This update […]

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Oracle Linux 9 — grafana — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — grafana — vulnerability — patch and remediation guide (ELSA-2022-5716)

  • October 8, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 8 October 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5716 Related CVEs: CVE-2022-31107 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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How to Configure sudo for Non-Root Users on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure sudo for Non-Root Users on Debian 12

  • October 8, 2023
  • Linux
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Introduction Debian 12 Bookworm is built around the ethos of stability and free software. Setting up configure sudo for non-root users on debian 12 on Bookworm leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bookworm freeze. Follow each step carefully […]

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Common Problems 116895

Ubuntu 22.04 LTS APT Lock Error During Updates

  • October 8, 2023
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 8 October 2023 📖 ~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 & Cross-Refs References & Further […]

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How to Configure Custom Metrics with Prometheus on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Custom Metrics with Prometheus on CentOS Stream 9

  • October 7, 2023
  • CentOS
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Introduction Setting up configure custom metrics with prometheus on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Custom Metrics with Prometheus on CentOS Stream 9, with all the commands you need, the SELinux and firewalld […]

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Oracle Linux 9 — conmon — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — conmon — security and stability fixes — required update (ELSA-2023-2222)

  • October 7, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 7 October 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2222 Related CVEs: CVE-2022-41717 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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Debian 12 — php-horde-ldap — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — php-horde-ldap — vulnerability — patch and remediation guide

  • October 7, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 7 October 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-3999 Upstream summary: The Horde_Ldap library before 2.0.6 for Horde allows remote attackers to bypass authentication by leveraging knowledge of the LDAP bind user DN. Table of contents […]

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Gentoo Linux — net-news/liferea — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-news/liferea — vulnerability — patch and remediation guide

  • October 7, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202407-03 Related CVEs: CVE-2023-1350 Upstream summary: A vulnerability has been discovered in Liferea. Please review the CVE identifier referenced below for details. Table of contents Symptom & Impact Environment & Reproduction Root […]

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Debian 12 — libxi — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libxi — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • October 7, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 7 October 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1984 CVE-2013-1995 CVE-2013-1998 CVE-2016-7945 CVE-2016-7946 Upstream summary: Multiple integer overflows in X.org libXi 1.7.1 and earlier allow X servers to trigger allocation of insufficient memory and a buffer […]

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Debian 11 — slurm-wlm — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — slurm-wlm — multiple vulnerabilities (9 CVEs) — patch and remediation guide

  • October 7, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 7 October 2023 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-31215 CVE-2022-29500 CVE-2022-29501 CVE-2023-41914 CVE-2023-49933 CVE-2023-49936 CVE-2023-49937 CVE-2023-49938  +1 more Upstream summary: SchedMD Slurm before 20.02.7 and 20.03.x through 20.11.x before 20.11.7 allows remote code execution as SlurmUser […]

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