Logging Monitoring

SLES 15 — spamassassin — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — spamassassin — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 1 March 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2019:1961-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-15705 CVE-2018-11780 CVE-2018-11781 CVE-2018-11805 CVE-2019-12420 CVE-2020-1930 CVE-2020-1931 CVE-2020-1946 Upstream summary: A denial of service vulnerability was identified that exists in Apache SpamAssassin before 3.4.2. The […]

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

Oracle Linux 8 — rsyslog security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-1702)

🟡 Medium   ⏱ 10–30 min  Last verified: 28 February 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-1702 Related CVEs: CVE-2019-17041 CVE-2019-17042 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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Common Problems 115542

MariaDB fails to start after crash

🟡 Medium   ⏱ 5–30 min  Last verified: 28 February 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 […]

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Alpine Linux edge — opendmarc — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — opendmarc — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.4.1.1-r3 📖 ~4 min read  •  Source: Alpine secdb entry — opendmarc 1.4.1.1-r3 Related CVEs: CVE-2021-34555 Upstream summary: Alpine community repository for vedge ships opendmarc 1.4.1.1-r3 which addresses CVE-2021-34555. Table of contents Symptom & Impact Environment […]

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FreeBSD 12 — py35-wagtail — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py35-wagtail — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 February 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Wagtail — potential timing attack vulnerability Related CVEs: CVE-2020-11001 CVE-2020-11037 Upstream summary: Wagtail release notes: CVE-2020-11037: Potential timing attack on password-protected private pages This release addresses a potential timing attack […]

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FreeBSD 12 — mpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — mpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 February 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: MPD5 PPPoE Server remotely exploitable crash Related CVEs: CVE-2020-7465 CVE-2020-7466 Upstream summary: Version 5.9_2 contains security fix for PPPoE servers. Insufficient validation of incoming PPPoE Discovery request specially crafted by […]

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Ubuntu 18.04 — audacity — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — audacity — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 February 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7211-1 Related CVEs: CVE-2020-11867 Upstream summary: Mike Salvatore discovered that Audacity incorrectly handled default permissions of temporary files created by the application. An attacker could possibly use this issue to […]

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SLES 15 — glib-networking — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — glib-networking — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 28 February 2021 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:3944-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-13645 Upstream summary: In GNOME glib-networking through 2.64.2, the implementation of GTlsClientConnection skips hostname verification of the server's TLS certificate if the application fails to […]

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How to Configure Traffic Shaping with tc on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Traffic Shaping with tc on Oracle Linux 8

Introduction This tutorial demonstrates how to Configure Traffic Shaping with tc on Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system with […]

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