Linux

CentOS Stream 9 — linux-firmware — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — linux-firmware — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 17 September 2023 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2023:6595 Related CVEs: CVE-2022-27635 CVE-2022-36351 CVE-2022-38076 CVE-2022-40964 CVE-2022-46329 CVE-2023-20569 CVE-2023-20584 CVE-2023-31356  +2 more Upstream summary: The linux-firmware packages contain all of the firmware files that are required by various devices to […]

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Alpine Linux 3.18 — netatalk — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — netatalk — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 3.1.18-r0 📖 ~4 min read  •  Source: Alpine secdb entry — netatalk 3.1.18-r0 Related CVEs: CVE-2022-22995 CVE-2023-42464 CVE-2022-43634 CVE-2022-45188 CVE-2021-31439 CVE-2022-23121 CVE-2022-23123 CVE-2022-23122  +4 more Upstream summary: Alpine community repository for vv3.18 ships netatalk 3.1.18-r0 which […]

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How To Host a Website with Caddy on Ubuntu 22.04 — step-by-step Linux tutorial on Progressive Robot

How To Host a Website with Caddy on Ubuntu 22.04

Caddy is a web server designed around simplicity and security that comes with a number of features that are useful for hosting websites. In this tutorial, you’ll build Caddy from source and use it to host a website secured with HTTPS.

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How to Set Up Dovecot IMAP Server on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Dovecot IMAP Server on Debian 12

Introduction This guide explains how to Set Up Dovecot IMAP Server on Debian 12 on Debian 12 Bookworm. Debian Bookworm 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 12 install with […]

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How to Configure Loki for Log Aggregation on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Loki for Log Aggregation on CentOS Stream 9

Introduction This tutorial demonstrates how to Configure Loki for Log Aggregation on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with […]

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Debian 12 — libxml-dt-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libxml-dt-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-5260 Upstream summary: The (1) mkxmltype and (2) mkdtskel scripts in XML-DT before 0.64 allow local users to overwrite arbitrary files via a symlink attack on a /tmp/_xml_##### […]

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Debian 12 — fuseiso — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — fuseiso — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8836 CVE-2015-8837 Upstream summary: Integer overflow in the isofs_real_read_zf function in isofs.c in FuseISO 20070708 might allow remote attackers to cause a denial of service (application crash) or […]

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Debian 12 — gkrellm — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — gkrellm — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0723 Upstream summary: Buffer overflow in gkrellmd for gkrellm 2.1.x before 2.1.14 may allow remote attackers to execute arbitrary code. Table of contents Symptom & Impact Environment & […]

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Debian 12 — nfs-utils — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — nfs-utils — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 16 September 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0252 CVE-2004-0154 CVE-2004-1014 CVE-2008-4552 CVE-2011-1749 CVE-2011-2500 CVE-2013-1923 CVE-2019-3689  +1 more Upstream summary: Off-by-one error in the xlog function of mountd in the Linux NFS utils package (nfs-utils) before […]

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Ubuntu 20.04 — owslib — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — owslib — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 16 September 2023 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8247-1 Related CVEs: CVE-2023-27476 Upstream summary: It was discovered that OWSLib did not properly disable entity resolution within its XML parser. An attacker could possibly use this issue to read […]

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