Security Hardening

FreeBSD 15 — py310-numpy — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — py310-numpy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 February 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-numpy — Missing return-value validation of the function PyArray_DescrNew Related CVEs: CVE-2021-41495 Upstream summary: Numpy reports: At most call-sites for PyArray_DescrNew, there are no validations of its return, but an […]

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Amazon Linux 2023 — kernel-livepatch-6.12.63-84.121 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — kernel-livepatch-6.12.63-84.121 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023LIVEPATCH-2026-115 Related CVEs: CVE-2025-71085 CVE-2025-71091 CVE-2025-71116 Upstream summary: In the Linux kernel, the following vulnerability has been resolved: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() (CVE-2025-71085) In the Linux […]

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Debian 12 — docker-registry — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — docker-registry — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 21 February 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-11468 CVE-2023-2253 CVE-2026-33540 CVE-2026-35172 Upstream summary: Docker Registry before 2.6.2 in Docker Distribution does not properly restrict the amount of content accepted from a user, which allows remote […]

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Common Problems 122165

OpenVPN Tunnel Interface Does Not Come Up

🟡 Medium   ⏱ 5–30 min  Last verified: 21 February 2026 Affected versions: FreeBSD 15 📖 ~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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Debian 13 — user-mode-linux — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — user-mode-linux — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 February 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2002-2016 Upstream summary: User-mode Linux (UML) 2.4.17-8 does not restrict access to kernel address space, which allows local users to execute arbitrary code. Table of contents Symptom & […]

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FreeBSD 12 — ap24-mod_security — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ap24-mod_security — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 21 February 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ModSecurity — empty XML tag causes segmentation fault Related CVEs: CVE-2025-47947 CVE-2025-48866 CVE-2025-52891 Upstream summary: [email protected] reports: ModSecurity is an open source, cross platform web application firewall (WAF) engine for […]

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Amazon Linux 2023 — mount-s3 — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — mount-s3 — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2026-1510 Related CVEs: CVE-2026-25727 CVE-2026-3336 CVE-2026-3337 CVE-2026-3338 CVE-2026-4428 Upstream summary: time provides date and time handling in Rust. From 0.3.6 to before 0.3.47, when user-provided input is provided to any […]

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

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

🟠 High   ⏱ 15–60 min  Last verified: 21 February 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0107 CVE-2004-0797 CVE-2005-1849 CVE-2005-2096 CVE-2016-9840 CVE-2016-9841 CVE-2016-9842 CVE-2016-9843  +5 more Upstream summary: Buffer overflow in the gzprintf function in zlib 1.1.4, when zlib is compiled without vsnprintf or […]

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Windows Server 2022 — KB5073698 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5073698 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5073698 • MSRC update-guide entry Related CVEs: CVE-2026-21265 CVE-2026-0386 CVE-2026-20805 CVE-2026-20816 CVE-2026-20820 CVE-2026-20821 CVE-2026-20824 CVE-2026-20828  +12 more Affected components: Windows Server 2022 Microsoft summary: Windows Secure Boot stores Microsoft certificates in the […]

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Debian 13 — giac — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — giac — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 February 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-17526 Upstream summary: Input.cc in Bernard Parisse Giac 1.2.3.57 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to […]

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CHAT