Common Problems

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — thunderbird — vulnerability — patch and remediation guide (ELSA-2021-0993)

🟠 High   ⏱ 15–60 min  Last verified: 29 July 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-0993 Related CVEs: CVE-2021-23981 CVE-2021-23982 CVE-2021-23984 CVE-2021-23987 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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openSUSE Tumbleweed — wayshot — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — wayshot — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2021-21299 Upstream summary: hyper is an open-source HTTP library for Rust (crates.io). In hyper from version 0.12.0 and before versions 0.13.10 and 0.14.3 there is […]

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Oracle Linux 8 — Systems With Btrfs Fail to Boot in FIPS Mode — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Systems With Btrfs Fail to Boot in FIPS Mode

🟠 High   ⏱ 5–30 min  Last verified: 28 July 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug OLRNT-topic_sr1_qhl_nzb 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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FreeBSD 13 — py311-flask-caching — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py311-flask-caching — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-flask-caching — remote code execution or local privilege escalation vulnerabilities Related CVEs: CVE-2021-33026 Upstream summary: subnix reports: The Flask-Caching extension through 2.0.2 for Flask relies on Pickle for serialization, which […]

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Common Problems 119012

Ubuntu 14.04 LTS cron jobs stop executing on schedule

🟡 Medium   ⏱ 5–30 min  Last verified: 28 July 2021 Affected versions: 14.04 LTS 📖 ~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 12 — py36-ansible-base — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py36-ansible-base — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 July 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Ansible — Ansible user credentials disclosure in ansible-connection module Related CVEs: CVE-2021-3583 CVE-2021-3620 Upstream summary: Red Hat reports: A flaw was found in Ansible Engine's ansible-connection module, where sensitive information […]

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AlmaLinux 8 — nvme-cli — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — nvme-cli — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:2059 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 — mail-notification — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — mail-notification — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mail-notification — denial-of-service vulnerability Upstream summary: Caused by an untested return value, and a resulting null pointer dereference, it is possible for an attacker to crash the application. However, the […]

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