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

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

🟡 Medium   ⏱ 10–30 min  Last verified: 20 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-14823 CVE-2021-4213 CVE-2022-4132 Upstream summary: A flaw was found in the "Leaf and Chain" OCSP policy implementation in JSS' CryptoManager versions after 4.4.6, 4.5.3, 4.6.0, where it implicitly […]

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Debian 11 — ledger — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ledger — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-12481 CVE-2017-12482 CVE-2017-2807 CVE-2017-2808 Upstream summary: The find_option function in option.cc in Ledger 3.1.1 allows remote attackers to cause a denial of service (stack-based buffer overflow and application […]

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Debian 11 — libunwind — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libunwind — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-3239 Upstream summary: Off-by-one error in the dwarf_to_unw_regnum function in include/dwarf_i.h in libunwind 1.1 allows local users to have unspecified impact via invalid dwarf opcodes. Table of contents […]

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Ubuntu 20.04 — python-future — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — python-future — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 July 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5833-1 Related CVEs: CVE-2022-40899 Upstream summary: Sebastian Chnelik discovered that python-future incorrectly handled certain HTTP header field. An attacker could possibly use this issue to cause a denial of service. […]

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How To Install Nginx on Debian 11 — step-by-step Linux tutorial on Progressive Robot

How To Install Nginx on Debian 11 (ON-DEBIAN-11)

Nginx is one of the most popular web servers in the world and responsible for hosting some of the largest and highest-traffic sites on the internet. It is more resource-friendly than Apache in most cases and can be used as a web server or reverse proxy.

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Ubuntu 22.04 — gsasl — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — gsasl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 July 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6169-1 Related CVEs: CVE-2022-2469 Upstream summary: It was discovered that GNU SASL's GSSAPI server could make an out-of-bounds reads if given specially crafted GSS-API authentication data. A remote attacker could […]

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

AlmaLinux 8 — mdevctl — 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-2022:1922 Upstream summary: The mdevctl package provides a utility for managing and persisting devices in the mediated device framework of the Linux kernel. Table of contents Symptom & Impact Environment & Reproduction […]

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Oracle Linux 8 — grub2, mokutil, shim, and shim-unsigned-x64 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — grub2, mokutil, shim, and shim-unsigned-x64 — vulnerability — patch and remediation guide (ELSA-2022-5095)

🟠 High   ⏱ 15–60 min  Last verified: 20 July 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-5095 Related CVEs: CVE-2022-28733 CVE-2022-28735 CVE-2021-3695 CVE-2021-3697 CVE-2022-28736 CVE-2022-28737 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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How to Install pip and Manage Python Packages on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install pip and Manage Python Packages on Debian 11

Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up install pip and manage python packages 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 […]

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