Package Management

Debian 11 — ssvnc — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ssvnc — multiple vulnerabilities (4 CVEs) — patch and remediation guide

  • July 13, 2022
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 13 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-20020 CVE-2018-20021 CVE-2018-20022 CVE-2018-20024 Upstream summary: LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution Table […]

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How to Configure MySQL InnoDB Cluster on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Configure MySQL InnoDB Cluster on SLES 12

Introduction This tutorial covers How to Configure MySQL InnoDB Cluster on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper […]

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Debian 11 — oath-toolkit — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — oath-toolkit — vulnerability — patch and remediation guide

  • July 13, 2022
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 13 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-7322 Upstream summary: usersfile.c in liboath in OATH Toolkit before 2.4.1 does not properly handle lines containing an invalid one-time-password (OTP) type and a user name in /etc/users.oath, […]

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Ubuntu 14.04 — wireshark — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — wireshark — multiple vulnerabilities (15 CVEs) — patch and remediation guide

  • July 13, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 13 July 2022 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7552-1 Related CVEs: CVE-2021-4185 CVE-2022-0582 CVE-2022-0586 CVE-2022-3190 CVE-2021-4182 CVE-2022-0585 CVE-2021-39929 CVE-2021-4186  +7 more Upstream summary: It was discovered that Wireshark did not correctly handle recursion. If a user or system […]

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SLES 15 — hdf5 — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — hdf5 — multiple vulnerabilities (12 CVEs) — patch and remediation guide

  • July 13, 2022
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 13 July 2022 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2023:0691-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-37501 CVE-2018-13867 CVE-2018-17439 CVE-2021-45830 CVE-2021-45833 CVE-2021-46242 CVE-2018-11205 CVE-2018-14031  +4 more Upstream summary: Buffer Overflow vulnerability in HDFGroup hdf5-h5dump 1.12.0 through 1.13.0 allows attackers to cause […]

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

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2022-0535)

  • July 13, 2022
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 13 July 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-0535 Related CVEs: CVE-2022-22756 CVE-2022-22760 CVE-2022-22763 CVE-2022-22754 CVE-2022-22761 CVE-2022-22764 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Configure HashiCorp Vault on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure HashiCorp Vault on Debian 11

  • July 13, 2022
  • Linux
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Introduction This guide explains how to Configure HashiCorp Vault on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the standard […]

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

Oracle Linux 8 — babel — security and stability fixes — required update (ELSA-2021-4201)

  • July 12, 2022
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 12 July 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4201 Related CVEs: CVE-2021-42771 CVE-2021-20095 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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Common Problems 120642

Debian 11 – Apache2 Fails with Address Already in Use – Port Conflict Resolution

  • July 12, 2022
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 12 July 2022 Affected versions: Debian 11 📖 ~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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