🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0 📖 ~4 min read • Source: Alpine secdb entry — opus 0 Related CVEs: CVE-2022-25345 Upstream summary: Alpine main repository for vedge ships opus 0 which addresses CVE-2022-25345. Table of contents Symptom & Impact Environment […]
firewalld ist eine für viele Linux-Distributionen verfügbare Firewall-Verwaltungssoftware, die als Frontend für die kernelinternen nftables- oder…
Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up configure openvas vulnerability scanner on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully and […]
🟠 High ⏱ 15–60 min Last verified: 29 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2012-6535 CVE-2019-15142 CVE-2019-15143 CVE-2019-15144 CVE-2019-15145 CVE-2019-18804 CVE-2021-32490 CVE-2021-32491 +7 more Upstream summary: DjVuLibre before 3.5.25.3, as used in Evince, Sumatra PDF Reader, VuDroid, and other products, allows remote […]
🟢 Low ⏱ 5–15 min Last verified: 29 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2013-1853 Upstream summary: Almanah Diary 0.9.0 and 0.10.0 does not encrypt the database when closed, which allows local users to obtain sensitive information by reading the database. Table […]
Postfix is a popular open-source Mail Transfer Agent (MTA) that can be used to route and deliver email on a Linux system. It is estimated that around 25% of public mail servers on the internet run Postfix. In this guide, you’ll learn how to install and configure Postfix on an Ubuntu 22.04 server.
🟠 High ⏱ 15–60 min Last verified: 29 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-1999-0199 CVE-2002-0391 CVE-2002-0651 CVE-2002-0684 CVE-2002-1146 CVE-2003-0028 CVE-2003-0689 CVE-2004-0968 +12 more Upstream summary: manual/search.texi in the GNU C Library (aka glibc) before 2.2 lacks a statement about the unspecified […]
Replication allows your databases to distribute load among more than one computer. While MariaDB natively supports master-slave replication, which allows you to offload read operations to a a number of slave servers, this master-master replication, which allows you to write data to any node, is not implemented. With a Galera cluster, MariaDB incorporates some patches that allow for master-master replication. We will be setting this up using Ubuntu 12.04 servers.
Ansible playbooks are YAML files that describe the desired state of a set of managed servers using a series of tasks. Advanced playbook authoring goes beyond simple task lists to include: roles (reusable, shareable task bundles with a standard directory structure), handlers (tasks triggered only when a change occurs, such as restarting Nginx only when […]
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2021:2761-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-29509 CVE-2022-24790 CVE-2022-23634 CVE-2021-41136 Upstream summary: Puma is a concurrent HTTP 1.1 server for Ruby/Rack applications. The fix for CVE-2019-16770 was incomplete. The original fix […]
