Security Hardening

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 6 January 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2004-0969 CVE-2004-1296 CVE-2009-5044 CVE-2009-5078 CVE-2009-5079 CVE-2009-5080 CVE-2009-5081 CVE-2009-5082 Upstream summary: The groffer script in the Groff package 1.18 and later versions, as used in Trustix Secure Linux 1.5 […]

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openSUSE Leap 15.6 — libdw1 — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — libdw1 — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:4092-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-1372 CVE-2025-1352 CVE-2025-1376 CVE-2025-1377 Upstream summary: A vulnerability was found in GNU elfutils 0.192. It has been declared as critical. Affected by this vulnerability […]

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Ubuntu 24.04 — libfcgi — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 24.04

Ubuntu 24.04 — libfcgi — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 January 2026 Affected versions: Ubuntu 24.04 (noble) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7486-1 Related CVEs: CVE-2025-23016 Upstream summary: It was discovered that FastCGI incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash or execute arbitrary code. […]

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Ubuntu 22.04 — libfcgi — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — libfcgi — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 January 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7486-1 Related CVEs: CVE-2025-23016 Upstream summary: It was discovered that FastCGI incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash or execute arbitrary code. […]

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Windows Server 2019 — KB5055557 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2019

Windows Server 2019 — KB5055557 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2019 📖 ~4 min read  •  Source: Microsoft KB5055557 • MSRC update-guide entry Related CVEs: CVE-2025-26663 CVE-2025-26686 CVE-2025-26670 CVE-2025-27480 CVE-2023-40547 CVE-2025-26664 CVE-2025-26665 CVE-2025-26669  +12 more Affected components: Windows Server 2019 (Server Core installation) Microsoft summary: Use after free in Windows […]

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SLES 15 — rarpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — rarpd — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 6 January 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory RHSA-2025:17558 (see also SUSE bugzilla) Related CVEs: CVE-2025-48964 CVE-2025-47268 Upstream summary: ping in iputils before 20250602 allows a denial of service (application error in adaptive ping mode or incorrect data collection) via […]

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Oracle Linux 10 — golang-github-openprinting-ipp-usb — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — golang-github-openprinting-ipp-usb — vulnerability — patch and remediation guide (ELSA-2025-9156)

🟡 Medium   ⏱ 10–30 min  Last verified: 6 January 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-9156 Related CVEs: CVE-2025-22871 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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SLES 16 — cloud-init — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — cloud-init — multiple vulnerabilities (8 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 6 January 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-IU-2021:6-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-8631 CVE-2020-8632 CVE-2024-6174 CVE-2019-0816 CVE-2021-3429 CVE-2022-2084 CVE-2023-1786 CVE-2024-11584 Upstream summary: cloud-init through 19.4 relies on Mersenne Twister for a random password, which makes it easier […]

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Windows Server 2016 — KB5065429 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2016

Windows Server 2016 — KB5065429 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2016 📖 ~4 min read  •  Source: Microsoft KB5065429 • MSRC update-guide entry Related CVEs: CVE-2025-54918 CVE-2025-55226 CVE-2025-53799 CVE-2025-53800 CVE-2025-48807 CVE-2025-49734 CVE-2025-54099 CVE-2025-54101  +12 more Affected components: Windows Server 2016 Microsoft summary: Improper authentication in Windows NTLM allows an authorized […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 6 January 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: rubygem-resolv — Possible denial of service Related CVEs: CVE-2004-0755 CVE-2004-0983 CVE-2005-1992 CVE-2005-2337 CVE-2006-3694 CVE-2006-5467 CVE-2006-6303 CVE-2008-1447  +12 more Upstream summary: Manu reports: The vulnerability is caused by an insufficient check […]

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