Linux

Ubuntu 22.04 — recutils — multiple vulnerabilities (13 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — recutils — multiple vulnerabilities (13 CVEs) — patch and remediation guide

  • October 2, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 2 October 2023 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7137-1 Related CVEs: CVE-2019-11637 CVE-2019-11638 CVE-2019-11639 CVE-2019-11640 CVE-2019-6455 CVE-2019-6456 CVE-2019-6457 CVE-2019-6458  +5 more Upstream summary: It was discovered that recutils incorrectly handled memory when parsing comments with the recparser utility. […]

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Ubuntu 20.04 — pmix — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — pmix — vulnerability — patch and remediation guide

  • October 2, 2023
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 2 October 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6434-1 Related CVEs: CVE-2023-41915 Upstream summary: Francois Diakhate discovered that PMIx did not properly handle race conditions in the pmix library, which could lead to unwanted privilege escalation. An attacker […]

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Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2023-12858)

  • October 2, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 2 October 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12858 Related CVEs: CVE-2023-20588 CVE-2023-22024 CVE-2023-42753 CVE-2023-6546 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Oracle Linux 8 — postgresql:13 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — postgresql:13 — vulnerability — patch and remediation guide (ELSA-2023-7581)

  • October 2, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 2 October 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-7581 Related CVEs: CVE-2023-5870 CVE-2023-39417 CVE-2023-5869 CVE-2023-5868 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Oracle Linux 8 — buildah — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — buildah — vulnerability — patch and remediation guide (ELSA-2023-12578)

  • October 2, 2023
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 2 October 2023 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12578 Related CVEs: CVE-2023-28642 CVE-2023-25809 CVE-2023-27561 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 Deploy a Spring Boot Application on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Deploy a Spring Boot Application on RHEL 9

  • October 1, 2023
  • Linux
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Spring Boot is the most widely used Java web framework, providing an opinionated, auto-configured platform for building standalone, production-ready applications. Spring Boot embeds an HTTP server (Tomcat, Jetty, or Undertow) directly in the application JAR, eliminating the need for a separate application server deployment. A Spring Boot application is packaged as an executable “fat JAR” […]

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Oracle Linux 9 — nodejs security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — nodejs security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-4331)

  • October 1, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 1 October 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-4331 Related CVEs: CVE-2023-30588 CVE-2023-30581 CVE-2023-30590 CVE-2023-30589 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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How to Manage Packages with DNF on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Manage Packages with DNF on CentOS Stream 9

  • October 1, 2023
  • CentOS
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Introduction This tutorial demonstrates how to Manage Packages with DNF on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with the […]

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Common Problems 120094

Debian 12 Journald Grows Too Large and Consumes Disk

  • October 1, 2023
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 1 October 2023 Affected versions: Debian 12 📖 ~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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Debian 12 — a2ps — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — a2ps — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • October 1, 2023
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 1 October 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2001-1593 CVE-2004-1170 CVE-2004-1377 CVE-2014-0466 CVE-2015-8107 Upstream summary: The tempname_ensure function in lib/routines.h in a2ps 4.14 and earlier, as used by the spy_user function and possibly other functions, allows […]

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