chris

Amazon Linux 2 — spamassassin — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — spamassassin — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2018-1103 Related CVEs: CVE-2017-15705 CVE-2018-11781 CVE-2020-1946 CVE-2019-12420 Upstream summary: A flaw was found in the way SpamAssassin processes HTML email containing unclosed HTML tags. A carefully crafted mail message could […]

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Common Problems 112624

Windows Server 2019 — dsregcmd shows hybrid Azure AD join failure on Windows clients — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 9 July 2021 Affected versions: Windows Server 2019 📖 ~2 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 13 — kf5-kio — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — kf5-kio — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: kio: Information Leak when accessing https when using a malicious PAC file Upstream summary: Albert Astals Cid reports: Using a malicious PAC file, and then using exfiltration methods in the […]

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How to Set Up IPv6 on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up IPv6 on FreeBSD 13

Introduction How to Set Up IPv6 on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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FreeBSD 13 — drupal6-cck — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — drupal6-cck — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 July 2021 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: drupal6-cck — cross-site scripting Related CVEs: CVE-2009-1069 Upstream summary: Drupal CCK plugin developer reports: The Node reference and User reference sub-modules, which are part of the Content Construction Kit (CCK) […]

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openSUSE Tumbleweed — libtirpc3 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libtirpc3 — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2022:2025-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-46828 Upstream summary: In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are […]

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FreeBSD 12 — py39-pycares — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py39-pycares — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 9 July 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py39-pycares — domain hijacking vulnerability Related CVEs: CVE-2021-3672 Upstream summary: Philipp Jeitner and Haya Shulman report: A flaw was found in c-ares library, where a missing input validation check of […]

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FreeBSD 12 — redis — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — redis — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 9 July 2021 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: redis — Bug in XACKDEL may lead to stack overflow and potential RCE Related CVEs: CVE-2011-4815 CVE-2011-4838 CVE-2011-5036 CVE-2011-5037 CVE-2013-7458 CVE-2015-4335 CVE-2021-21309 CVE-2021-29477  +12 more Upstream summary: Google Big Sleep […]

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Arch Linux — raptor — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — raptor — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202011-20 Related CVEs: CVE-2020-25713 CVE-2017-18926 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 2.0.15-13. Fixed in: 2.0.15-14. Group: AVG-1283. Table of contents Symptom & Impact Environment & Reproduction Root […]

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