Security Hardening

How to Configure Btrfs File System on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Btrfs File System on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up configure btrfs file system on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step carefully and […]

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FreeBSD 12 — firebird21-server — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — firebird21-server — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: firebird — Remote Stack Buffer Overflow Related CVEs: CVE-2013-2492 Upstream summary: Firebird Project reports: The FirebirdSQL server is vulnerable to a stack buffer overflow that can be triggered when an […]

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openSUSE Tumbleweed — libyaml-cpp0_6 — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — libyaml-cpp0_6 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2018:0631-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-5950 Upstream summary: The SingleDocParser::HandleNode function in yaml-cpp (aka LibYaml-C++) 0.5.3 allows remote attackers to cause a denial of service (stack consumption and application crash) […]

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Common Problems 114893

RHEL 8 DNF transaction check error blocks updates

🟡 Medium   ⏱ 5–30 min  Last verified: 5 March 2020 📖 ~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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FreeBSD 12 — coppermine — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — coppermine — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: coppermine — Multiple vulnerabilities Related CVEs: CVE-2005-1172 CVE-2006-0872 CVE-2006-0873 CVE-2006-1909 CVE-2007-4976 CVE-2007-4977 CVE-2008-0504 CVE-2008-0505  +3 more Upstream summary: The Coppermine Team reports: The release covers several path disclosure vulnerabilities. If […]

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

FreeBSD 12 — imap-uw — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 5 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: imap-uw — University of Washington IMAP c-client Remote Format String Vulnerability Related CVEs: CVE-2005-0198 CVE-2005-2933 CVE-2008-5514 Upstream summary: SecurityFocus reports: University of Washington IMAP c-client is prone to a remote […]

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Arch Linux — diffoscope — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — diffoscope — vulnerability — 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-201702-14 Related CVEs: CVE-2017-0359 Upstream summary: Type: arbitrary file overwrite. Status: Fixed. Affected: 67-1. Fixed in: 77-1. Group: AVG-175. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Debian 10 — neomutt — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — neomutt — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 March 2020 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-14093 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Ubuntu 18.04 — linux-oem — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — linux-oem — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 5 March 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4660-1 Related CVEs: CVE-2020-14351 CVE-2020-14390 CVE-2020-25211 CVE-2020-25284 CVE-2020-25285 CVE-2020-25641 CVE-2020-25643 CVE-2020-25645  +12 more Upstream summary: It was discovered that a race condition existed in the perf subsystem of the Linux […]

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Ubuntu 16.04 — ark — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — ark — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 5 March 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4482-1 Related CVEs: CVE-2020-24654 Upstream summary: Fabian Vogt discovered that Ark incorrectly handled symbolic links in tar archive files. An attacker could use this to construct a malicious tar archive […]

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