2021 - Page 120 of 759

AlmaLinux 8 — geoclue2 — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — geoclue2 — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2021:1586 Related CVEs: CVE-2019-13012 CVE-2020-13543 CVE-2020-13584 CVE-2020-16125 CVE-2020-9948 CVE-2020-9951 CVE-2020-9983 CVE-2021-1817  +4 more Upstream summary: GNOME is the default desktop environment of AlmaLinux. The following packages have been upgraded to a later […]

Read more
Debian 11 — bzflag — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — bzflag — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2005-4584 Upstream summary: BZFlag server 2.0.4 and earlier allows remote attackers to cause a denial of service (application crash) via a callsign that is not followed by a […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 6 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-15953 CVE-2017-15954 CVE-2017-15955 Upstream summary: bchunk (related to BinChunker) 1.2.0 and 1.2.1 is vulnerable to a heap-based buffer overflow and crash when processing a malformed CUE (.cue) file. […]

Read more
Debian 11 — breezy — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — breezy — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-14176 Upstream summary: Bazaar through 2.7.0, when Subprocess SSH is used, allows remote attackers to execute arbitrary commands via a bzr+ssh URL with an initial dash character in […]

Read more
Debian 11 — r-other-x4r — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — r-other-x4r — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 6 November 2021 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-9765 CVE-2019-7659 Upstream summary: Integer overflow in the soap_get function in Genivia gSOAP 2.7.x and 2.8.x before 2.8.48, as used on Axis cameras and other devices, allows remote […]

Read more
AlmaLinux 8 — graphviz — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — graphviz — 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-2021:4256 Related CVEs: CVE-2020-18032 Upstream summary: Graphviz is open-source graph-visualization software. Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. It has important applications in […]

Read more
Ubuntu 18.04 — gif2apng — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — gif2apng — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 6 November 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~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 […]

Read more
How To Sandbox Processes With Systemd On Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

How To Sandbox Processes With Systemd On Ubuntu 20.04

Sandboxing is a computer security technique that focuses on isolating a program or process from parts of a system that it does not need to interact with during normal operation. In this tutorial you will run through a practical demonstration of how to use systemd’s sandboxing techniques on Ubuntu 20.04 for an efficient workflow to implement and to test these techniques.

Read more
How to Configure Nginx Load Balancing on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Nginx Load Balancing on RHEL 8

Load balancing distributes incoming client requests across multiple backend servers, preventing any single server from becoming a bottleneck and improving both throughput and fault tolerance. Nginx’s built-in load balancing is highly capable and available in the open-source version without any additional modules for most common use cases. On RHEL 8, you can configure Nginx to […]

Read more
Oracle Linux 8 — pacemaker — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — pacemaker — security and stability fixes — required update (ELSA-2019-1279)

🟠 High   ⏱ 15–60 min  Last verified: 5 November 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-1279 Related CVEs: CVE-2018-16878 CVE-2018-16877 CVE-2019-3885 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

Read more
CHAT