October 2021 - Page 30 of 69

FreeBSD 12 — py37-ansible-base — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py37-ansible-base — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 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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How to Set Up a Firewall with firewalld on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Set Up a Firewall with firewalld on SLES 15

Introduction This tutorial covers How to Set Up a Firewall with firewalld on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to […]

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FreeBSD 13 — bastillion — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — bastillion — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: bastillion — log4j vulnerability Related CVEs: CVE-2021-44228 Upstream summary: FreeBSD port maintainer reports: Bastillion uses log4j. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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FreeBSD 13 — py38-pygments — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — py38-pygments — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-pygments — multiple DoS vulnerabilities Related CVEs: CVE-2021-20270 CVE-2021-27291 Upstream summary: Red Hat reports: An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of […]

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Debian 11 — as31 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — as31 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-0808 Upstream summary: as31 2.3.1-4 does not seed the random number generator and generates predictable temporary file names, which makes it easier for local users to create or […]

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Common Problems 117905

Ubuntu 18.04 LTS – dist-upgrade aborts with held broken packages

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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 […]

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Debian 11 — ruby-redcarpet — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-redcarpet — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-26298 Upstream summary: Redcarpet is a Ruby library for Markdown processing. In Redcarpet before version 3.5.1, there is an injection vulnerability which can enable a cross-site scripting attack. […]

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Debian 11 — kmail — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — kmail — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-11880 Upstream summary: An issue was discovered in KDE KMail before 19.12.3. By using the proprietary (non-RFC6068) "mailto?attach=…" parameter, a website (or other source of mailto links) can […]

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CHAT