Linux

openSUSE Tumbleweed — ruby3.1-rubygem-puma — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — ruby3.1-rubygem-puma — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:2761-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-29509 CVE-2022-24790 CVE-2022-23634 CVE-2021-41136 Upstream summary: Puma is a concurrent HTTP 1.1 server for Ruby/Rack applications. The fix for CVE-2019-16770 was incomplete. The original fix […]

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Configuration initiale de serveur avec Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Configuration initiale de serveur avec Ubuntu 18.04

Lorsque vous installez un nouveau serveur Ubuntu 18.04, il y a quelques étapes de configuration que vous devriez effectuer au sein de votre paramétrage initial. Cela renforcera la sécurité et l’ergonomie de votre serveur et vous procurera une base solide pour vos actions…

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Common Problems 117040

Ubuntu 22.04 LTS Nginx Fails to Reload Because of Duplicate Server Name

🟡 Medium   ⏱ 5–30 min  Last verified: 28 October 2022 📖 ~1 min read 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 Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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Debian 11 — node-browserslist — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — node-browserslist — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-23364 Upstream summary: The package browserslist from 4.0.0 and before 4.16.5 are vulnerable to Regular Expression Denial of Service (ReDoS) during parsing of queries. Table of contents Symptom […]

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Common Problems 115028

RHEL 8 Dracut Initramfs Missing Drivers After Storage Change

🟡 Medium   ⏱ 5–30 min  Last verified: 28 October 2022 📖 ~1 min read 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 Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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

Debian 11 — snort — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-3299 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Debian 11 — ruamel.yaml — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruamel.yaml — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-20478 Upstream summary: In ruamel.yaml through 0.16.7, the load method allows remote code execution if the application calls this method with an untrusted argument. In other words, this […]

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

Debian 11 — librsync — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-8242 Upstream summary: librsync before 1.0.0 uses a truncated MD4 checksum to match blocks, which makes it easier for remote attackers to modify transmitted data via a birthday […]

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Debian 11 — libhttp-body-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — libhttp-body-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-4407 Upstream summary: HTTP::Body::Multipart in the HTTP-Body module for Perl (1.07 through 1.22, before 1.23) uses the part of the uploaded file's name after the first "." character […]

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Ubuntu 18.04 — nvidia-graphics-drivers-390 — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — nvidia-graphics-drivers-390 — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 28 October 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5547-1 Related CVEs: CVE-2022-31607 CVE-2022-31608 CVE-2022-31615 CVE-2021-1093 CVE-2021-1094 CVE-2021-1095 CVE-2021-1076 CVE-2021-1077  +7 more Upstream summary: Le Wu discovered that the NVIDIA graphics drivers did not properly perform input validation in […]

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