Logging Monitoring

AlmaLinux 8 — dovecot — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — dovecot — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:13830 Related CVEs: CVE-2025-59032 CVE-2026-27857 CVE-2026-27858 CVE-2024-23184 CVE-2024-23185 CVE-2022-30550 CVE-2021-33515 CVE-2020-24386  +3 more Upstream summary: Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. […]

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Oracle Linux 10 — postgresql16 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — postgresql16 — vulnerability — patch and remediation guide (ELSA-2026-3887)

🟠 High   ⏱ 15–60 min  Last verified: 16 April 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-3887 Related CVEs: CVE-2026-2004 CVE-2026-2005 CVE-2026-2006 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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SLES 16 — glibc-livepatches — vulnerability — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — glibc-livepatches — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 16 April 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2026:1498-1 (see also SUSE bugzilla) Related CVEs: CVE-2026-4046 Upstream summary: The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs […]

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SLES 16 — java — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — java — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 16 April 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory RHSA-2026:9254 (see also SUSE bugzilla) Related CVEs: CVE-2026-22016 CVE-2026-34282 CVE-2026-21932 CVE-2026-21945 CVE-2025-53066 CVE-2022-21449 CVE-2022-21476 CVE-2022-34169  +12 more Upstream summary: Unknown. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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Amazon Linux 2 — java-11-amazon-corretto — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — java-11-amazon-corretto — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2021-1731 Related CVEs: CVE-2021-44228 CVE-2021-45046 CVE-2026-22007 CVE-2026-22013 CVE-2026-22016 CVE-2026-22018 CVE-2026-22021 CVE-2026-34268  +12 more Upstream summary: No versions of an Amazon Linux Java Virtual Machine (JVM) are affected by CVE-2021-44228 or […]

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FreeBSD 15 — redis-devel — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — redis-devel — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 16 April 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: redis,valkey — Denial-of-service valnerability due to malformed ACL selectors Related CVEs: CVE-2013-7458 CVE-2015-4335 CVE-2021-21309 CVE-2021-29477 CVE-2021-29478 CVE-2021-32625 CVE-2021-32626 CVE-2021-32627  +12 more Upstream summary: Redis core team reports: An authenticated with […]

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Debian 13 — ruby-rack — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — ruby-rack — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 16 April 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-5036 CVE-2012-6109 CVE-2013-0183 CVE-2013-0184 CVE-2013-0262 CVE-2013-0263 CVE-2015-3225 CVE-2018-16471  +12 more Upstream summary: Rack before 1.1.3, 1.2.x before 1.2.5, and 1.3.x before 1.3.6 computes hash values for form parameters […]

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Common Problems 114108

RHEL 10 Kdump Fails to Capture Crash Dump After Kernel Panic

🔴 Critical   ⏱ 5–30 min  Last verified: 15 April 2026 Affected versions: RHEL 10 📖 ~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 15 — krfb — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — krfb — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 April 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: krfb — Multiple security issues in bundled libvncserver Related CVEs: CVE-2014-4607 CVE-2014-6055 Upstream summary: Martin Sandsmark reports: krfb 4.14 [and earlier] embeds libvncserver which has had several security issues. Several […]

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AlmaLinux 10 — fence-agents — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — fence-agents — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:13916 Related CVEs: CVE-2026-30922 CVE-2026-32597 CVE-2026-23490 Upstream summary: The fence-agents packages provide a collection of scripts for handling remote power management for cluster devices. They allow failed or unreachable nodes to be […]

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