Security Hardening

AlmaLinux 8 — gdk-pixbuf2 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — gdk-pixbuf2 — multiple vulnerabilities (20 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-2026:10741 Related CVEs: CVE-2026-5201 CVE-2025-7345 CVE-2022-48622 CVE-2019-11070 CVE-2019-11459 CVE-2019-12795 CVE-2019-3820 CVE-2019-6237  +12 more Upstream summary: The gdk-pixbuf2 packages provide an image loading library that can be extended by loadable modules for new […]

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

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

🔴 Critical   ⏱ 15–90 min  Last verified: 7 April 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2025-63389 CVE-2026-43039 CVE-2026-33210 CVE-2026-22184 CVE-2026-24061 CVE-2023-26785 CVE-2022-1949 CVE-2019-10171  +12 more Upstream summary: A critical authentication bypass vulnerability exists in Ollama platform's API endpoints in versions […]

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Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — Unbreakable Enterprise kernel — vulnerability — patch and remediation guide (ELSA-2025-25733)

🟠 High   ⏱ 15–60 min  Last verified: 7 April 2026 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-25733 Related CVEs: CVE-2025-39973 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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

FreeBSD 15 — bind — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 April 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: DNSSEC validators — denial-of-service/CPU exhaustion from KeyTrap and NSEC3 vulnerabilities Related CVEs: CVE-2003-0914 CVE-2005-0033 CVE-2005-0034 CVE-2006-4095 CVE-2006-4096 CVE-2009-0696 CVE-2011-1910 CVE-2011-2464  +12 more Upstream summary: Simon Kelley reports: If DNSSEC validation […]

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Red Hat Enterprise Linux 7 — eap7-wildfly — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 7 — eap7-wildfly — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 7 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:6012 Related CVEs: CVE-2024-3884 CVE-2025-48913 CVE-2026-0603 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution […]

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FreeBSD 15 — linux-c6_64-flashplugin — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — linux-c6_64-flashplugin — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 April 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: flash — multiple vulnerabilities Related CVEs: CVE-2015-3107 CVE-2015-5124 CVE-2015-5125 CVE-2015-5127 CVE-2015-5128 CVE-2015-5129 CVE-2015-5130 CVE-2015-5131  +12 more Upstream summary: Adobe reports: Adobe has released security updates for Adobe Flash Player for […]

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Debian 13 — freerdp3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — freerdp3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 7 April 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2024-32658 CVE-2024-32659 CVE-2024-32660 CVE-2024-32661 CVE-2024-32662 CVE-2025-4478 CVE-2026-22851 CVE-2026-22852  +12 more Upstream summary: FreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients prior to version […]

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Fedora 42 — firefox — vulnerability — patch and remediation guide — diagnosis and fix on Fedora 42

Fedora 42 — firefox — vulnerability — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Fedora 42 📖 ~4 min read  •  Source: Fedora update FEDORA-2026-7f6ee801e2 Upstream summary: Update NSS to 3.123.1 Update to Firefox 151.0 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution […]

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Common Problems 124107

Oracle Linux 10 – rsyslog stops forwarding logs to SIEM after TLS certificate renewal

🟠 High   ⏱ 5–30 min  Last verified: 6 April 2026 Affected versions: Oracle Linux 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 — php55-fileinfo — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — php55-fileinfo — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 April 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Upstream summary: The PHP Group reports: Fileinfo: Fixed bug #71527 (Buffer over-write in finfo_open with malformed magic file). mbstring: Fixed bug #71906 (AddressSanitizer: negative-size-param (-1) in […]

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CHAT