Linux

Common Problems 121033

Debian 10: chrony not syncing and system clock drift

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Debian 10 📖 ~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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Oracle Linux 10 — .NET 8.0 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — .NET 8.0 — vulnerability — patch and remediation guide (ELSA-2025-18152)

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-18152 Related CVEs: CVE-2025-55315 CVE-2025-55247 CVE-2025-55248 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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SLES 16 — qemu — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — qemu — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2016:0010-1 (see also SUSE bugzilla) Related CVEs: CVE-2015-7512 CVE-2017-15118 CVE-2026-3195 CVE-2025-11234 CVE-2008-4539 CVE-2014-0145 CVE-2015-3209 CVE-2015-6855  +12 more Upstream summary: Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest […]

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SLES 12 — librelp0 — vulnerability — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — librelp0 — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2018:0822-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-1000140 Upstream summary: rsyslog librelp version 1.2.14 and earlier contains a Buffer Overflow vulnerability in the checking of x509 certificates from a peer that can […]

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Common Problems 117963

Ubuntu 18.04 LTS Docker containers cannot reach the internet

🟡 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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Common Problems 121533

Debian 9: chrony not syncing and system clock drift

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Debian 9 📖 ~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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Common Problems 117464

Ubuntu 20.04 LTS GRUB Installation Failed During Kernel Upgrade

🟡 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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Common Problems 116459

Ubuntu 24.04 LTS Snap Apps Cannot Access Removable Media

🟡 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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Oracle Linux 8 — Certain SEV Guest Configurations Might Cause Hypervisor CPU Soft-Lockup Warnings — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Certain SEV Guest Configurations Might Cause Hypervisor CPU Soft-Lockup Warnings

🟠 High   ⏱ 5–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 34050377 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 […]

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CentOS Stream 10 — freerdp — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 10

CentOS Stream 10 — freerdp — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: CentOS Stream 10 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:8458 Related CVEs: CVE-2026-33983 CVE-2026-33984 CVE-2026-22852 CVE-2026-22854 CVE-2026-22856 CVE-2026-23732 CVE-2026-23948 CVE-2026-24491  +12 more Upstream summary: FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. […]

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