November 2023 - Page 76 of 77

Common Problems 120176

Debian 12 GRUB Rescue Prompt After Disk Layout Change

🔴 Critical   ⏱ 5–30 min  Last verified: 20 May 2026 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 11 — heat — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — heat — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-6426 CVE-2013-6428 CVE-2014-3801 CVE-2015-5295 CVE-2016-9185 CVE-2023-1625 Upstream summary: The cloudformation-compatible API in OpenStack Orchestration API (Heat) before Havana 2013.2.1 and Icehouse before icehouse-2 does not properly enforce policy […]

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Debian 12 — golang-v2ray-core — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — golang-v2ray-core — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-4070 Upstream summary: Off-by-one Error in GitHub repository v2fly/v2ray-core prior to 4.44.0. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis […]

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Debian 12 — konversation — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — konversation — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-0129 CVE-2005-0130 CVE-2005-0131 CVE-2007-4400 CVE-2009-5050 CVE-2014-8483 CVE-2017-15923 Upstream summary: The Quick Buttons feature in Konversation 0.15 allows remote attackers to execute certain IRC commands via a channel name […]

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How to Set Up Rancher on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Set Up Rancher on Oracle Linux 9

Introduction How to Set Up Rancher on Oracle Linux 9 on Oracle Linux 9 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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Debian 12 — mactelnet — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — mactelnet — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-7115 Upstream summary: Buffer overflow in the handle_packet function in mactelnet.c in the client in MAC-Telnet 0.4.3 and earlier allows remote TELNET servers to execute arbitrary code via […]

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Common Problems 117037

Ubuntu 22.04 Bluetooth Adapter Not Detected After Update

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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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Debian 12 — cracklib2 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — cracklib2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2016-6318 Upstream summary: Stack-based buffer overflow in the FascistGecosUser function in lib/fascist.c in cracklib allows local users to cause a denial of service (application crash) or gain privileges […]

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Ubuntu 18.04 — tang — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — tang — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6489-1 Related CVEs: CVE-2023-1672 Upstream summary: Brian McDermott discovered that Tang incorrectly handled permissions when creating/rotating keys. A local attacker could possibly use this issue to read the keys. Table […]

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Ubuntu 20.04 — kvmtool — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — kvmtool — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8172-1 Related CVEs: CVE-2023-2861 CVE-2021-45464 Upstream summary: It was discovered that kvmtool did not properly manage memory under certain circumstances. A malicious guest attacker could use this issue to cause […]

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