November 2022 - Page 27 of 69

Debian 11 — pdftk — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — pdftk — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-37819 Upstream summary: PDF Labs pdftk-java v3.2.3 was discovered to contain an infinite loop via the component /text/pdf/PdfReader.java. Table of contents Symptom & Impact Environment & Reproduction Root […]

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Common Problems 116949

Ubuntu 22.04 LTS – SSH service is active but remote login is refused

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 22.04 LTS Ubuntu 22.04 Ubuntu 22.04.4 📖 ~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 […]

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Debian 11 — awffull — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — awffull — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-0510 CVE-2007-3299 Upstream summary: Multiple buffer overflows in (1) graphs.c, (2) output.c, and (3) preserve.c in AWFFull 3.7.1 and earlier have unknown impact and attack vectors. NOTE: some […]

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Debian 11 — ruby-will-paginate — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-will-paginate — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-6459 Upstream summary: Cross-site scripting (XSS) vulnerability in the will_paginate gem before 3.0.5 for Ruby allows remote attackers to inject arbitrary web script or HTML via vectors involving […]

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Debian 11 — yasm — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — yasm — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-33454 CVE-2021-33455 CVE-2021-33456 CVE-2021-33457 CVE-2021-33458 CVE-2021-33459 CVE-2021-33460 CVE-2021-33461  +12 more Upstream summary: An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in yasm_expr_get_intnum() […]

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Ubuntu 18.04 — jupyter-core — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — jupyter-core — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6153-1 Related CVEs: CVE-2022-39286 Upstream summary: It was discovered that Jupyter Core executed untrusted files in the current working directory. An attacker could possibly use this issue to execute arbitrary […]

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Common Problems 113419

Windows Server 2012 R2 – NTLM fallback when Kerberos should be used – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 01 April 2027 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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Ubuntu 16.04 — busybox — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — busybox — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6335-1 Related CVEs: CVE-2021-28831 CVE-2022-48174 CVE-2011-5325 CVE-2014-9645 CVE-2015-9261 CVE-2016-2147 CVE-2016-2148 CVE-2017-15873  +4 more Upstream summary: It was discovered that BusyBox incorrectly handled certain malformed gzip archives. If a user or […]

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How to Configure Server Core on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Server Core on Windows Server 2016

How to Configure Windows Server 2016 Server Core Server Core is an installation option for Windows Server 2016 that removes the graphical shell — the desktop, Start menu, taskbar, and most graphical management tools — leaving only a command prompt and PowerShell. The result is a significantly reduced attack surface, lower memory consumption, fewer required […]

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Ubuntu 20.04 — golang-golang-x-text — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — golang-golang-x-text — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5873-1 Related CVEs: CVE-2020-14040 CVE-2020-28851 CVE-2020-28852 CVE-2021-38561 CVE-2022-32149 Upstream summary: It was discovered that Go Text incorrectly handled certain encodings. An attacker could possibly use this issue to cause a […]

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