April 2023 - Page 55 of 69

Ubuntu 18.04 — dovecot — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — dovecot — multiple vulnerabilities (9 CVEs) — patch and remediation guide

  • April 7, 2023
  • Linux
  • Comment off

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5509-1 Related CVEs: CVE-2022-30550 CVE-2020-24386 CVE-2020-25275 CVE-2020-12100 CVE-2020-12673 CVE-2020-12674 CVE-2019-11500 CVE-2019-7524  +1 more Upstream summary: Julian Brook discovered that Dovecot incorrectly handled multiple passdb configuration entries. In certain configurations, a […]

Read more
Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2023-0288)

  • April 7, 2023
  • Linux
  • Comment off

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0288 Related CVEs: CVE-2023-23599 CVE-2023-23601 CVE-2023-23603 CVE-2023-23598 CVE-2022-46871 CVE-2022-46877 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

Read more
How to Analyze Network Traffic with Wireshark CLI (tshark) on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Analyze Network Traffic with Wireshark CLI (tshark) on RHEL 10

  • April 7, 2023
  • Linux
  • Comment off

Introduction This tutorial demonstrates how to Analyze Network Traffic with Wireshark CLI (tshark) on RHEL 10 on RHEL 10. 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 RHEL 10 system with the […]

Read more
Oracle Linux 8 — python27:2.7 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python27:2.7 — vulnerability — patch and remediation guide (ELSA-2023-5994)

  • April 7, 2023
  • Linux
  • Comment off

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5994 Related CVEs: CVE-2023-40217 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Oracle Linux 9 — ghostscript — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — ghostscript — vulnerability — patch and remediation guide (ELSA-2023-5459)

  • April 7, 2023
  • Linux
  • Comment off

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5459 Related CVEs: CVE-2023-36664 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Oracle Linux 8 — glibc — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — glibc — vulnerability — patch and remediation guide (ELSA-2023-12851)

  • April 7, 2023
  • Linux
  • Comment off

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12851 Related CVEs: CVE-2023-4911 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Como configurar as chaves SSH no Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Como configurar as chaves SSH no Ubuntu 20.04

  • April 7, 2023
  • Linux
  • Comment off

O SSH, ou shell seguro, é um protocolo criptografado usado para administrar e se comunicar com servidores. Ao trabalhar com um servidor Ubuntu, existem boas chances de você gastar a maior parte do seu tempo em uma sessão de terminal conectada ao seu servidor através do…

Read more
Oracle Linux 8 — libwebp — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libwebp — vulnerability — patch and remediation guide (ELSA-2023-5309)

  • April 7, 2023
  • Linux
  • Comment off

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-5309 Related CVEs: CVE-2023-4863 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more

Tags

AIX AlmaLinux Alpine Linux authentication authorization Backup Recovery Boot Startup Cloud Integration Common Problems Cpu Memory Database Debian Debian 11 Debian 12 Bookworm Debian 13 Trixie DNS Firewall Fix Prevention FreeBSD FreeBSD 12 FreeBSD 13 FreeBSD 14 FreeBSD 15 Kernel Drivers Logging Monitoring Lvm Raid NetBSD Networking openSUSE Operations Oracle Linux Oracle Linux 8 Oracle Linux 9 Package Management Performance Proxy Security Hardening SLES Storage Disk Systemd Services Tls Ssl Troubleshooting ubuntu VPN windows server

Progressive Robot: Your Gateway to Comprehensive IT Solutions — Specializing in Web Development, Mobile App Development, and Expert IT Services.

Twitter Facebook Pinterest-p Ovaicon-instagram Linkedin Youtube Whatsapp Github

Links

Newsletter

Signup for our latest news & articles. We won’t give you spam mails.

Contact

© All Copyright 2026 by Progressiverobot.com

VAT Number ( 506152326 )

Progressive Robot Microsoft Solutions Partner logo with four-color square icon and text reading Microsoft Solutions Partner
Progressive Robot AMD Adaptive Computing Partner Elite badge logo
Progressive Robot NVIDIA Partner badge
vmware Partner
cisco partner
AWS Partner
IBM Partner
HP Partner
Dell partner
Juniper partner
CHAT