Common Problems

Oracle Linux 8 — nss and nspr security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nss and nspr security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2021-3572)

🟡 Medium   ⏱ 10–30 min  Last verified: 20 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3572 Related CVEs: CVE-2020-25648 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

Read more
Common Problems 121549

Debian 9 Failed to Fetch Due to Proxy Misconfiguration

🟡 Medium   ⏱ 5–30 min  Last verified: 20 January 2021 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 & […]

Read more
Common Problems 119038

Ubuntu 14.04 LTS Swap Not Activating After Reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 20 January 2021 📖 ~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
openSUSE Tumbleweed — newsboat — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — newsboat — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2020-26235 Upstream summary: In Rust time crate from version 0.2.7 and before version 0.2.23, unix-like operating systems may segfault due to dereferencing a dangling pointer […]

Read more
FreeBSD 12 — py38-ansible — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py38-ansible — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 January 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-ansible — multiple vulnerabilities Related CVEs: CVE-2020-10744 CVE-2020-25635 CVE-2020-25636 CVE-2021-3532 CVE-2021-3583 CVE-2021-3620 Upstream summary: abeluck reports: A flaw was found in Ansible Base when using the aws_ssm connection plugin as […]

Read more
Alpine Linux edge — sqlite — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — sqlite — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 3.34.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — sqlite 3.34.1-r0 Related CVEs: CVE-2021-20227 CVE-2020-13434 CVE-2020-13435 CVE-2020-11655 CVE-2019-19242 CVE-2019-19244 CVE-2019-5018 CVE-2019-8457  +1 more Upstream summary: Alpine main repository for vedge ships sqlite 3.34.1-r0 which […]

Read more
FreeBSD 12 — py311-flask-caching — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py311-flask-caching — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 January 2021 Affected versions: FreeBSD 12 📖 ~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 […]

Read more
Oracle Linux 8 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — firefox — vulnerability — patch and remediation guide (ELSA-2020-4317)

🟠 High   ⏱ 15–60 min  Last verified: 20 January 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4317 Related CVEs: CVE-2020-15969 CVE-2020-15683 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

Read more
SLES 12 — java — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 12

SLES 12 — java — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 20 January 2021 Affected versions: SLES 12 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2020:0001-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-17631 CVE-2020-27221 CVE-2012-0497 CVE-2012-1533 CVE-2012-1682 CVE-2012-1713 CVE-2012-1716 CVE-2012-1723  +12 more Upstream summary: From Eclipse OpenJ9 0.15 to 0.16, access to diagnostic operations such as causing […]

Read more
Arch Linux — libslirp — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — libslirp — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202106-49 Related CVEs: CVE-2021-3595 CVE-2021-3594 CVE-2021-3593 CVE-2021-3592 CVE-2020-29130 CVE-2020-29129 Upstream summary: Type: information disclosure. Status: Fixed. Affected: 4.5.0-1. Fixed in: 4.6.0-1. Group: AVG-2073. Table of contents Symptom & Impact Environment […]

Read more
CHAT