Linux

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

Debian 11 — libmatroska — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 3 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8792 Upstream summary: The KaxInternalBlock::ReadData function in libMatroska before 1.4.4 allows context-dependent attackers to obtain sensitive information from process heap memory via crafted EBML lacing, which triggers an […]

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How to Install OpenJDK 17 on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install OpenJDK 17 on Debian 11

Introduction This guide explains how to Install OpenJDK 17 on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the standard […]

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AlmaLinux 8 — fwupd — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — fwupd — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2023:7189 Related CVEs: CVE-2022-3287 Upstream summary: The fwupd packages provide a service that allows session software to update device firmware. Security Fix(es): * fwupd: world readable password in /etc/fwupd/redfish.conf (CVE-2022-3287) For more […]

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Ubuntu 16.04 — monit — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — monit — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 March 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6571-1 Related CVEs: CVE-2022-26563 CVE-2019-11454 CVE-2019-11455 Upstream summary: Youssef Rebahi-Gilbert discovered that Monit did not properly process credentials for disabled accounts. An attacker could possibly use this issue to login […]

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Ubuntu 18.04 — gnome-autoar — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — gnome-autoar — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 3 March 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4937-2 Related CVEs: https://launchpad.net/bugs/1929304 CVE-2021-28650 https://launchpad.net/bugs/1917812 CVE-2020-36241 Upstream summary: USN-4937-1 fixed a vulnerability in GNOME Autoar. The update caused a regression when extracting certain archives. This update fixes the problem. […]

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Oracle Linux 8 — libssh security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libssh security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2020-4545)

🟡 Medium   ⏱ 10–30 min  Last verified: 2 March 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-4545 Related CVEs: CVE-2020-1730 CVE-2019-14889 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How to Configure CentOS Stream 9 for Container Workloads — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure CentOS Stream 9 for Container Workloads

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying configure centos stream 9 for container workloads both straightforward and auditable. This tutorial covers the complete procedure for how to Configure CentOS Stream 9 for Container Workloads, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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AlmaLinux 8 — python-justbytes — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — python-justbytes — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2020:4798 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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

Debian 11 — anjuta — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 2 March 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-42522 Upstream summary: There is a Information Disclosure vulnerability in anjuta/plugins/document-manager/anjuta-bookmarks.c. This issue was caused by the incorrect use of libxml2 API. The vendor forgot to call 'g_free()' […]

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