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Common Problems 120961

Debian 10 – APT Lock Contention Blocks Security Updates – Safe Recovery

🟠 High   ⏱ 5–30 min  Last verified: 29 May 2020 Affected versions: Debian 10 📖 ~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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How to Apply Technology Level Updates on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Apply Technology Level Updates on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to apply technology level updates on ibm aix 7.1 on […]

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How to Set Up PowerShell Web Access on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up PowerShell Web Access on Windows Server 2012 R2

How to Set Up PowerShell Web Access on Windows Server 2012 R2 PowerShell Web Access (PSWA) is a Windows Server feature introduced in Windows Server 2012 that provides a web-based PowerShell console accessible from any modern browser. It allows administrators to connect to and manage remote Windows servers without requiring PowerShell to be installed on […]

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How to Configure Nginx as a Reverse Proxy for Apache2 on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Nginx as a Reverse Proxy for Apache2 on Debian 10

Introduction How to Configure Nginx as a Reverse Proxy for Apache2 on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains […]

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

openSUSE Tumbleweed — geary — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE security advisory (see also SUSE bugzilla) Related CVEs: CVE-2020-24661 Upstream summary: GNOME Geary before 3.36.3 mishandles pinned TLS certificate verification for IMAP and SMTP services using invalid TLS certificates (e.g., self-signed certificates) when […]

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

FreeBSD 12 — netqmail-tls — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: qmail — 64 bit integer overflows with possible remote code execution on large SMTP requests Related CVEs: CVE-2005-1513 CVE-2005-1514 CVE-2005-1515 Upstream summary: Georgi Guninski writes: There are several issues with […]

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

FreeBSD 12 — gtk — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 May 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: gdk-pixbuf — image decoding vulnerabilities Related CVEs: CVE-2004-0782 CVE-2004-0783 CVE-2004-0788 Upstream summary: Chris Evans discovered several flaws in the gdk-pixbuf XPM image decoder: Heap-based overflow in pixbuf_create_from_xpm Stack-based overflow in […]

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Alpine Linux edge — libupnp — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — libupnp — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.12.1-r1 📖 ~4 min read  •  Source: Alpine secdb entry — libupnp 1.12.1-r1 Related CVEs: CVE-2020-13848 Upstream summary: Alpine community repository for vedge ships libupnp 1.12.1-r1 which addresses CVE-2020-13848. Table of contents Symptom & Impact Environment […]

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Ubuntu 18.04 — c3p0 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — c3p0 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 May 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5293-1 Related CVEs: CVE-2019-5427 Upstream summary: Aaron Massey discovered that c3p0 could be made to crash when parsing certain input. An attacker able to modify the application's XML configuration file […]

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Ubuntu 18.04 — xcftools — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — xcftools — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 May 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5988-1 Related CVEs: CVE-2019-5086 CVE-2019-5087 Upstream summary: It was discovered that integer overflows vulnerabilities existed in Xcftools. An attacker could use this to cause a denial of service (system crash) […]

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