Operations

Oracle Linux 8 — virt:ol and virt-devel:ol security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — virt:ol and virt-devel:ol security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-4191)

🟡 Medium   ⏱ 10–30 min  Last verified: 2 August 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4191 Related CVEs: CVE-2020-15859 CVE-2021-3592 CVE-2021-3593 CVE-2021-3594 CVE-2021-3595 CVE-2021-3631 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Common Problems 121654

Debian 9 – LVM thin pool reaches 100% and blocks writes

🔴 Critical   ⏱ 5–30 min  Last verified: 2 August 2022 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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FreeBSD 13 — py27-dulwich — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py27-dulwich — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 August 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Dulwich — Remote code execution Related CVEs: CVE-2015-0838 Upstream summary: MITRE reports: Buffer overflow in the C implementation of the apply_delta function in _pack.c in Dulwich before 0.9.9 allows remote […]

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Common Problems 120481

Debian 11 – dpkg Interrupted State Blocks Package Operations – Full Recovery

🔴 Critical   ⏱ 5–30 min  Last verified: 2 August 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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AlmaLinux 8 — libnetfilter_queue — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libnetfilter_queue — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2020:4556 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 13 — webtrees — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — webtrees — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 August 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: webtrees — vulnerability Upstream summary: Webtrees reports: GEDCOM imports containing errors and HTML displayed unescaped. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step […]

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FreeBSD 13 — ap22-mod_fcgid — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ap22-mod_fcgid — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 August 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mod_fcgid — possible heap buffer overwrite Related CVEs: CVE-2013-4365 Upstream summary: Apache Project reports: Fix possible heap buffer overwrite. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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FreeBSD 12 — node_exporter — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — node_exporter — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 August 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: node_exporter — bypass security with cache poisoning Related CVEs: CVE-2022-46146 Upstream summary: Prometheus team reports: Prometheus and its exporters can be secured by a web.yml file that specifies usernames and […]

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