Linux

Oracle Linux 9 — net-snmp — security and stability fixes — required update — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — net-snmp — security and stability fixes — required update (ELSA-2023-2444)

🟡 Medium   ⏱ 10–30 min  Last verified: 20 June 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2444 Related CVEs: CVE-2022-44793 CVE-2022-44792 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & […]

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How to Set Up Jaeger Distributed Tracing on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up Jaeger Distributed Tracing on Debian 12

Introduction Deploying set up jaeger distributed tracing on debian 12 on a Debian 12 Bookworm 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 You […]

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Debian 12 — policykit-1 — multiple vulnerabilities (16 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — policykit-1 — multiple vulnerabilities (16 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 20 June 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2008-1658 CVE-2011-1485 CVE-2011-4945 CVE-2013-4288 CVE-2015-3218 CVE-2015-3255 CVE-2015-4625 CVE-2016-2568  +8 more Upstream summary: Format string vulnerability in the grant helper (polkit-grant-helper.c) in PolicyKit 0.7 and earlier allows attackers to […]

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Debian 12 — fastapi — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — fastapi — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 June 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-32677 Upstream summary: FastAPI is a web framework for building APIs with Python 3.6+ based on standard Python type hints. FastAPI versions lower than 0.65.2 that used cookies […]

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Common Problems 114413

RHEL 9 firewalld blocks expected application traffic

🟡 Medium   ⏱ 5–30 min  Last verified: 20 June 2023 📖 ~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 12 — libdata-validate-ip-perl — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — libdata-validate-ip-perl — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 June 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-29662 Upstream summary: The Data::Validate::IP module through 0.29 for Perl does not properly consider extraneous zero characters at the beginning of an IP address string, which (in some […]

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Debian 12 — ntpsec — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ntpsec — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 20 June 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-7182 CVE-2019-6442 CVE-2019-6443 CVE-2019-6444 CVE-2019-6445 CVE-2021-22212 CVE-2023-4012 Upstream summary: The ctl_getitem method in ntpd in ntp-4.2.8p6 before 4.2.8p11 allows remote attackers to cause a denial of service (out-of-bounds […]

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How to Set Up SonarQube Code Analysis on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Set Up SonarQube Code Analysis on Debian 12

Introduction This guide explains how to Set Up SonarQube Code Analysis on Debian 12 on Debian 12 Bookworm. Debian Bookworm uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 12 install with […]

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Debian 12 — ruby-mixlib-archive — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — ruby-mixlib-archive — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 20 June 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-1000026 Upstream summary: Chef Software's mixlib-archive versions 0.3.0 and older are vulnerable to a directory traversal attack allowing attackers to overwrite arbitrary files by using ".." in tar […]

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