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Oracle Linux 8 — udisks2 — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — udisks2 — security and stability fixes — required update (ELSA-2022-1820)

🟢 Low   ⏱ 5–15 min  Last verified: 15 April 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-1820 Related CVEs: CVE-2021-3802 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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AlmaLinux 8 — libnetfilter_cthelper — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — libnetfilter_cthelper — 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-2020:1791 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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How to Configure WireGuard VPN on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure WireGuard VPN on SLES 15

Introduction This tutorial covers How to Configure WireGuard VPN on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Install WireGuard zypper install -y wireguard-tools Step 2 — […]

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Debian 11 — python-mechanize — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — python-mechanize — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-32837 Upstream summary: mechanize, a library for automatically interacting with HTTP web servers, contains a regular expression that is vulnerable to regular expression denial of service (ReDoS) prior […]

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FreeBSD 12 — py311-httpie — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py311-httpie — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 April 2022 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: py-httpie — exposure of sensitive information vulnerabilities Related CVEs: CVE-2022-0430 CVE-2022-24737 Upstream summary: Glyph reports: HTTPie is a command-line HTTP client. HTTPie has the practical concept of sessions, which help […]

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Debian 11 — ircd-irc2 — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ircd-irc2 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 15 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2003-0864 Upstream summary: Buffer overflow in m_join in channel.c for IRCnet IRCD 2.10.x to 2.10.3p3 allows remote attackers to cause a denial of service. Table of contents Symptom […]

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

AlmaLinux 8 — aspell — 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-2022:1808 Related CVEs: CVE-2019-25051 Upstream summary: GNU Aspell is a spell checker designed to eventually replace Ispell. It can either be used as a library or as an independent spell checker. Security […]

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Debian 11 — hexchat — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — hexchat — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 15 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-7449 CVE-2016-2087 CVE-2016-2233 Upstream summary: The ssl_do_connect function in common/server.c in HexChat before 2.10.2, XChat, and XChat-GNOME does not verify that the server hostname matches a domain name […]

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Debian 11 — jupyter-notebook — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — jupyter-notebook — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 15 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-19351 CVE-2018-19352 CVE-2018-21030 CVE-2018-8768 CVE-2019-10255 CVE-2019-9644 CVE-2020-26215 CVE-2021-32798  +3 more Upstream summary: Jupyter Notebook before 5.7.1 allows XSS via an untrusted notebook because nbconvert responses are considered to […]

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How to Configure Percona XtraBackup on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Percona XtraBackup on Debian 11

Introduction This guide explains how to Configure Percona XtraBackup 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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