Linux

SLES 15 — dnsmasq — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — dnsmasq — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:1934-1 (see also SUSE bugzilla) Related CVEs: CVE-2026-4890 CVE-2026-4892 CVE-2026-5172 CVE-2026-2291 CVE-2026-6507 CVE-2023-49441 CVE-2020-25681 CVE-2020-25682  +12 more Upstream summary: A Denial of Service (DoS) vulnerability in the DNSSEC validation of dnsmasq allows […]

Read more
SLES 12 — libvmtools0 — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — libvmtools0 — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory RHSA-2025:17428 (see also SUSE bugzilla) Related CVEs: CVE-2025-41244 CVE-2023-34058 CVE-2023-34059 CVE-2023-20900 CVE-2022-31676 CVE-2025-22247 CVE-2023-20867 CVE-2015-5191 Upstream summary: VMware Aria Operations and VMware Tools contain a local privilege escalation vulnerability. A malicious local […]

Read more
CentOS Stream 9 — kernel — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — kernel — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2026:A009 Related CVEs: CVE-2026-46300 CVE-2026-46333 CVE-2026-43284 CVE-2026-23136 CVE-2026-23270 CVE-2026-31402 CVE-2026-31431 CVE-2025-39766  +12 more Upstream summary: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): […]

Read more
Ubuntu 18.04 — linux-hwe-5.4 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — linux-hwe-5.4 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8273-1 Related CVEs: CVE-2024-50304 CVE-2026-23112 CVE-2026-23209 CVE-2022-49046 CVE-2024-46816 CVE-2025-37849 CVE-2026-23060 CVE-2026-23074  +12 more Upstream summary: Several security issues were discovered in the Linux kernel. An attacker could possibly use these […]

Read more
Common Problems 119540

Debian 13 Swap Not Activating at Boot

🟡 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 […]

Read more
Common Problems 124587

Oracle Linux 9 – Common Problem 013 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Oracle Linux 9 📖 ~2 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 […]

Read more
Common Problems 125093

Oracle Linux 8 – Common Problem 013 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Oracle Linux 8 📖 ~3 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 […]

Read more
Ubuntu 20.04 — linux-gcp-fips — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — linux-gcp-fips — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8273-1 Related CVEs: CVE-2024-50304 CVE-2026-23112 CVE-2026-23209 CVE-2026-31431 CVE-2026-31504 CVE-2026-31533 CVE-2026-43033 CVE-2026-43077  +12 more Upstream summary: Several security issues were discovered in the Linux kernel. An attacker could possibly use these […]

Read more
Common Problems 114515

RHEL 9: LVM Logical Volume Reaches 100% Usage

🟡 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 […]

Read more
Ubuntu 24.04 — linux-aws-fips — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — linux-aws-fips — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8278-1 Related CVEs: CVE-2024-50004 CVE-2024-58096 CVE-2024-58097 CVE-2025-37926 CVE-2025-38201 CVE-2025-38591 CVE-2025-40039 CVE-2025-40082  +12 more Upstream summary: It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic […]

Read more
CHAT