Operations

AlmaLinux 8 — felix-gogo-shell — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — felix-gogo-shell — 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-2020:5097 Upstream summary: Eclipse is an integrated development environment (IDE). The metadata for the eclipse:rhel8 module has been updated to remove the following unused profiles: c everything To check whether you have […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 10 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-14422 Upstream summary: Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial […]

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How to Configure the APT Package Manager on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure the APT Package Manager on Debian 11

Introduction How to Configure the APT Package Manager on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 10 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-6360 CVE-2020-19824 CVE-2021-30145 Upstream summary: mpv through 0.28.0 allows remote attackers to execute arbitrary code via a crafted web site, because it reads HTML documents containing VIDEO elements, […]

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Debian 11 — xbindkeys-config — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xbindkeys-config — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-9513 Upstream summary: Insecure use of temporary files in xbindkeys-config 0.1.3-2 allows remote attackers to execute arbitrary code. Table of contents Symptom & Impact Environment & Reproduction Root […]

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Debian 11 — hplip — multiple vulnerabilities (14 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — hplip — multiple vulnerabilities (14 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 10 April 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-5208 CVE-2008-2940 CVE-2008-2941 CVE-2010-4267 CVE-2011-2697 CVE-2011-2722 CVE-2013-0200 CVE-2013-4325  +6 more Upstream summary: hpssd in Hewlett-Packard Linux Imaging and Printing Project (hplip) 1.x and 2.x before 2.7.10 allows context-dependent […]

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Ubuntu 16.04 — libtar — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — libtar — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 10 April 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7398-1 Related CVEs: CVE-2021-33643 CVE-2021-33644 CVE-2021-33645 CVE-2021-33646 Upstream summary: It was discovered that libtar may perform out-of-bounds reads when processing specially crafted tar files. An attacker could possibly use this […]

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Ubuntu 20.04 — qpdf — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — qpdf — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 April 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5026-1 Related CVEs: CVE-2018-18020 CVE-2021-36978 Upstream summary: It was discovered that QPDF incorrectly handled certain malformed PDF files. A remote attacker could use this issue to cause QPDF to consume […]

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How to Use Performance Monitor on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Use Performance Monitor on Windows Server 2016

How to Set Up Windows Server 2016 Performance Monitor Performance Monitor is the primary built-in tool in Windows Server 2016 for collecting, analyzing, and visualizing system performance data. It enables administrators to track CPU usage, memory consumption, disk I/O, network throughput, and hundreds of other counters in real time or over collected time periods. Using […]

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Ubuntu 16.04 — nettle — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — nettle — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 10 April 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4906-1 Related CVEs: CVE-2021-20305 CVE-2016-6489 Upstream summary: It was discovered that Nettle incorrectly handled signature verification. A remote attacker could use this issue to cause Nettle to crash, resulting in […]

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