Common Problems

Debian 11 — python-future — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-future — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 27 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2022-40899 Upstream summary: An issue discovered in Python Charmers Future 0.18.2 and earlier allows remote attackers to cause a denial of service via crafted Set-Cookie header from malicious […]

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Debian 11 — feedparser — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — feedparser — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2009-5065 CVE-2011-1156 CVE-2011-1157 CVE-2011-1158 CVE-2012-2921 Upstream summary: Cross-site scripting (XSS) vulnerability in feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) before 5.0 allows remote attackers to inject […]

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CentOS Stream 9 — xdg-utils — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — xdg-utils — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 27 November 2022 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2025:7672 Related CVEs: CVE-2022-4055 Upstream summary: The xdg-utils package is a set of simple scripts that provide basic desktop integration functions for any Free Desktop. Security Fix(es): * xdg-utils: improper parse […]

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Common Problems 117923

Ubuntu 18.04 LTS SSH login denied after hardening changes

🟡 Medium   ⏱ 5–30 min  Last verified: 26 November 2022 📖 ~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 & Cross-Refs References & Further […]

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Common Problems 117090

Ubuntu 22.04 LTS Logrotate Fails and /var Grows Unbounded

🟡 Medium   ⏱ 5–30 min  Last verified: 26 November 2022 📖 ~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 & Cross-Refs References & Further […]

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Common Problems 115450

Port Already in Use Blocks Service Bind

🟡 Medium   ⏱ 5–30 min  Last verified: 26 November 2022 📖 ~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 & Cross-Refs References & Further […]

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Common Problems 111647

Windows Server 2022 — AD DS replication fails with error 1722 (RPC Server Unavailable) — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 26 November 2022 Affected versions: Windows Server 2022 📖 ~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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AlmaLinux 9 — perl-XML-Parser — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — perl-XML-Parser — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:7679 Related CVEs: CVE-2006-10002 CVE-2006-10003 Upstream summary: This module provides ways to parse XML documents. It is built on top of XML::Parser::Expat, which is a lower level interface to James Clark's expat […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 26 November 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py39-setuptools — denial of service vulnerability Related CVEs: CVE-2022-40897 Upstream summary: SCH227 reports: Python Packaging Authority (PyPA)'s setuptools is a library designed to facilitate packaging Python projects. Setuptools version 65.5.0 […]

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