Logging Monitoring

Alpine Linux 3.20 — musl — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — musl — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 1.2.5-r3 📖 ~4 min read  •  Source: Alpine secdb entry — musl 1.2.5-r3 Related CVEs: CVE-2026-40200 CVE-2026-6042 CVE-2025-26519 CVE-2020-28928 CVE-2019-14697 CVE-2016-8859 Upstream summary: Alpine main repository for vv3.20 ships musl 1.2.5-r3 which addresses CVE-2026-40200. Table of […]

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Debian 13 — gerbv — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — gerbv — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 February 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-40391 CVE-2021-40393 CVE-2021-40394 CVE-2021-40400 CVE-2021-40401 CVE-2021-40402 CVE-2021-40403 CVE-2023-4508 Upstream summary: An out-of-bounds write vulnerability exists in the drill format T-code tool number functionality of Gerbv 2.7.0, dev (commit […]

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Debian 13 — multimon-ng — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — multimon-ng — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 14 February 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-36619 Upstream summary: A vulnerability was found in multimon-ng. It has been rated as critical. This issue affects the function add_ch of the file demod_flex.c. The manipulation of the […]

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Red Hat Enterprise Linux 10 — dotnet8.0 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 10 — dotnet8.0 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Red Hat Enterprise Linux 10 📖 ~4 min read  •  Source: Red Hat advisory RHSA RHSA-2026:13281 Related CVEs: CVE-2026-26171 CVE-2026-32178 CVE-2026-32203 CVE-2026-33116 CVE-2026-26130 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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Ubuntu 22.04 — iperf3 — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — iperf3 — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 February 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7970-1 Related CVEs: CVE-2025-54349 CVE-2025-54350 CVE-2023-7250 CVE-2024-53580 CVE-2024-26306 https://launchpad.net/bugs/2038654 CVE-2023-38403 Upstream summary: Jorge Sancho Larraz discovered that iperf3 did not properly manage certain inputs, which could cause the server process […]

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Ubuntu 14.04 — jinja2 — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 14.04

Ubuntu 14.04 — jinja2 — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 February 2026 Affected versions: Ubuntu 14.04 (trusty) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7343-1 Related CVEs: CVE-2024-56201 CVE-2024-56326 CVE-2025-27516 CVE-2024-34064 CVE-2020-28493 CVE-2024-22195 CVE-2016-10745 CVE-2019-10906 Upstream summary: Rafal Krupinski discovered that Jinja2 did not properly restrict the execution of code in situations where templates […]

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SLES 16 — libgvnc — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — libgvnc — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 February 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:3125-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-5884 CVE-2017-5885 Upstream summary: gtk-vnc before 0.7.0 does not properly check boundaries of subrectangle-containing tiles, which allows remote servers to execute arbitrary code via the […]

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SLES 16 — nbdkit — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — nbdkit — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 14 February 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:01888-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-47711 CVE-2025-47712 CVE-2021-3716 Upstream summary: There's a flaw in the nbdkit server when handling responses from its plugins regarding the status of data blocks. If […]

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Windows Server 2016 — KB5066741 — security update — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5066741 — security update — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5066741 • MSRC update-guide entry Related CVEs: CVE-2025-55248 Affected components: Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2016 Microsoft summary: Inadequate encryption strength in .NET.NET Framework, Visual Studio allows an […]

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How to Set Up Automatic SSH Login Banners and Legal Warnings on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up Automatic SSH Login Banners and Legal Warnings on RHEL 9

Login banners and warning messages are a simple but legally important security control on Linux systems. Before users authenticate, a visible warning that unauthorized access is prohibited can be critical for legal enforcement action if a system is breached. After login, a message of the day can display system status information relevant to administrators. Many […]

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