February 2022 - Page 16 of 65

FreeBSD 13 — linux-f10-libxml — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — linux-f10-libxml — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: libxml2 — Enforce the reader to run in constant memory Related CVEs: CVE-2011-1944 CVE-2011-3202 CVE-2011-3919 CVE-2013-2877 CVE-2014-0191 CVE-2014-3660 CVE-2015-1819 Upstream summary: Daniel Veilland reports: Enforce the reader to run in […]

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Debian 11 — libpam-mount — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libpam-mount — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-3970 CVE-2008-5138 Upstream summary: pam_mount 0.10 through 0.45, when luserconf is enabled, does not verify mountpoint and source ownership before mounting a user-defined volume, which allows local users […]

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How to Set Up Unbound DNS Resolver on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Unbound DNS Resolver on Debian 11

Introduction This guide explains how to Set Up Unbound DNS Resolver 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 […]

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FreeBSD 13 — ifmail — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ifmail — security advisory — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ifmail — unsafe set-user-ID application Upstream summary: Niels Heinen reports that ifmail allows one to specify a configuration file. Since ifmail runs set-user-ID `news', this may allow a local attacker […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1986 CVE-2016-7947 CVE-2016-7948 Upstream summary: Multiple integer overflows in X.org libXrandr 1.4.0 and earlier allow X servers to trigger allocation of insufficient memory and a buffer overflow via […]

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Ubuntu 18.04 — nvidia-graphics-drivers-460-server — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — nvidia-graphics-drivers-460-server — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5019-1 Related CVEs: CVE-2021-1093 CVE-2021-1094 CVE-2021-1095 CVE-2021-1076 CVE-2021-1077 Upstream summary: It was discovered that an assert() could be triggered in the NVIDIA graphics drivers. A local attacker could use this […]

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How To Protect SSH with Fail2Ban on Rocky Linux 8 — step-by-step Linux tutorial on Progressive Robot

How To Protect SSH with Fail2Ban on Rocky Linux 8

Fail2ban is a service that can be run on your server to dynamically block clients that repeatedly fail to authenticate correctly with your services . This can help mitigate the affect of brute force attacks and illegitimate users of your services. In this guide, we’ll demonstrate how to install and configure fail2ban to protect SSH on a Rocky Linux 8 server.

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Ubuntu 16.04 — gif2apng — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — gif2apng — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5969-1 Related CVEs: CVE-2021-45909 CVE-2021-45910 CVE-2021-45911 Upstream summary: It was discovered that gif2apng contained multiple heap-base overflows. An attacker could potentially exploit this to cause a denial of service (system […]

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How to Secure Apache with Let's Encrypt and Certbot on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Secure Apache with Let’s Encrypt and Certbot on RHEL 8

Securing your Apache web server with a free SSL/TLS certificate from Let’s Encrypt is one of the most important steps you can take to protect your visitors and improve your site’s trustworthiness. Certbot, the official Let’s Encrypt client, automates the entire certificate issuance and renewal process. On RHEL 8, Certbot is available through the EPEL […]

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SLES 15 — rpm — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — rpm — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-CU-2019:695-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-7500 CVE-2021-3521 CVE-2021-3421 CVE-2021-20266 CVE-2021-20271 Upstream summary: It was found that rpm did not properly handle RPM installations when a destination path was a symbolic […]

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