Logging Monitoring

Amazon Linux 2 — protobuf-c — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — protobuf-c — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2023-2142 Related CVEs: CVE-2022-48468 CVE-2022-33070 Upstream summary: protobuf-c before 1.4.1 has an unsigned integer overflow in parse_required_member. (CVE-2022-48468) Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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SLES 15 — kubernetes1.18-client — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — kubernetes1.18-client — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 4 May 2023 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2021:322-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-3121 CVE-2023-2727 CVE-2023-2728 Upstream summary: An issue was discovered in GoGo Protobuf before 1.3.2. plugin/unmarshal/unmarshal.go lacks certain index validation, aka the "skippy peanut butter" issue. […]

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Oracle Linux 9 — flatpak-system-helper File Access Triggers SELinux Policy Violations — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — flatpak-system-helper File Access Triggers SELinux Policy Violations

🟠 High   ⏱ 5–30 min  Last verified: 3 May 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: Oracle Bug 34321783 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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AlmaLinux 8 — python-coverage — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — python-coverage — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:5994 Related CVEs: CVE-2023-40217 CVE-2023-24329 CVE-2019-7164 CVE-2019-7548 CVE-2019-9636 CVE-2022-40897 CVE-2022-48560 CVE-2022-48565  +12 more Upstream summary: Python is an interpreted, interactive, object-oriented programming language that supports modules, classes, exceptions, high-level dynamic data types, […]

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Common Problems 118003

Ubuntu 18.04 LTS unattended-upgrades hangs and blocks dpkg lock

🟡 Medium   ⏱ 5–30 min  Last verified: 3 May 2023 📖 ~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 111806

Windows Server 2022 – PDC emulator time drift causes Kerberos failures – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 3 May 2023 Affected versions: Windows Server 2022 📖 ~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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Alpine Linux edge — xorg-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — xorg-server — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 21.1.9-r0 📖 ~4 min read  •  Source: Alpine secdb entry — xorg-server 21.1.9-r0 Related CVEs: CVE-2023-5367 CVE-2023-5380 CVE-2023-5574 CVE-2023-0494 CVE-2022-4283 CVE-2022-46340 CVE-2022-46341 CVE-2022-46342  +12 more Upstream summary: Alpine community repository for vedge ships xorg-server 21.1.9-r0 which […]

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Ubuntu 20.04 — fdkaac — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — fdkaac — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 May 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7660-1 Related CVEs: CVE-2023-34823 CVE-2022-37781 CVE-2022-36148 CVE-2023-34824 Upstream summary: It was discovered that fdkaac did not correctly handle certain input. If a user or automated system were tricked into opening […]

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Ubuntu 20.04 — exuberant-ctags — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — exuberant-ctags — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 May 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5820-1 Related CVEs: CVE-2022-4515 Upstream summary: Lorenz Hipp discovered a flaw in exuberant-ctags handling of the tag filename command-line argument. A crafted tag filename specified in the command line or […]

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