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How to Restrict Kernel Module Loading on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Restrict Kernel Module Loading on Debian 11

Introduction Deploying restrict kernel module loading on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]

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

Debian 11 — libxfixes — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 July 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1983 CVE-2016-7944 Upstream summary: Integer overflow in X.org libXfixes 5.0 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related […]

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Ubuntu 16.04 — sosreport — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — sosreport — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 12 July 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5636-1 Related CVEs: CVE-2022-2806 Upstream summary: It was discovered that SoS incorrectly handled certain data. An attacker could possibly use this issue to expose sensitive information. Table of contents Symptom […]

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Oracle Linux 9 — GraalVM — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — GraalVM — vulnerability — patch and remediation guide (ELSA-2023-12681)

🟠 High   ⏱ 15–60 min  Last verified: 12 July 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12681 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan […]

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Gentoo Linux — dev-python/urllib3 — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-python/urllib3 — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202107-36 Related CVEs: CVE-2021-28363 CVE-2021-33503 Upstream summary: Multiple vulnerabilities have been discovered in urllib3. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact Environment & Reproduction […]

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FreeBSD 13 — avidemux — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — avidemux — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 12 July 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: ffmpeg — multiple vulnerabilities Related CVEs: CVE-2014-9316 CVE-2014-9317 CVE-2014-9603 CVE-2014-9604 CVE-2015-1872 CVE-2015-3395 CVE-2015-3417 CVE-2015-6761  +12 more Upstream summary: NVD reports: An issue was discovered in the FFmpeg package, where vp3_decode_frame […]

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FreeBSD 13 — cfengine — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — cfengine — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 July 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: cfengine — arbitrary file overwriting vulnerability Related CVEs: CVE-2005-2960 Upstream summary: A Debian Security Advisory reports: Javier Fernández-Sanguino Peña discovered several insecure temporary file uses in cfengine, a tool for […]

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FreeBSD 13 — enscript-letter — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — enscript-letter — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 11 July 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: enscript — arbitrary code execution vulnerability Related CVEs: CVE-2004-1184 CVE-2004-1185 CVE-2004-1186 CVE-2008-3863 CVE-2008-4306 Upstream summary: Ulf Harnhammar of Secunia Research reports: Stack-based buffer overflow in the read_special_escape function in src/psgen.c […]

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FreeBSD 13 — verlihub — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — verlihub — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 11 July 2022 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: verlihub — insecure temporary file usage and arbitrary command execution Related CVEs: CVE-2008-5705 CVE-2008-5706 Upstream summary: securityfocus reports: An attacker with local access could potentially exploit this issue to perform […]

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