Linux

Debian 11 — ruby-net-ldap — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — ruby-net-ldap — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 1 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-17718 Upstream summary: The Net::LDAP (aka net-ldap) gem before 0.16.0 for Ruby has Missing SSL Certificate Validation. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Ubuntu 18.04 — pdns-recursor — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — pdns-recursor — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 1 December 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7203-1 Related CVEs: CVE-2018-1046 CVE-2018-10851 CVE-2018-14626 CVE-2018-14644 CVE-2020-17482 CVE-2022-27227 Upstream summary: Wei Hao discovered that PowerDNS Authoritative Server incorrectly handled memory when accessing certain files. An attacker could possibly use […]

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Ubuntu 18.04 — connman — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — connman — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 1 December 2022 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6236-1 Related CVEs: CVE-2021-26675 CVE-2021-26676 CVE-2021-33833 CVE-2022-23096 CVE-2022-23097 CVE-2022-23098 CVE-2022-32292 CVE-2022-32293  +1 more Upstream summary: It was discovered that ConnMan could be made to write out of bounds. A remote […]

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

Oracle Linux 9 — expat — vulnerability — patch and remediation guide (ELSA-2023-0337)

🟡 Medium   ⏱ 10–30 min  Last verified: 1 December 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0337 Related CVEs: CVE-2022-43680 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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How to Install Python 3 and pip on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Python 3 and pip on RHEL 9

Python 3 is the most widely used language for web development, data science, machine learning, automation, and DevOps tooling. RHEL 9 ships with Python 3.9 by default, but newer versions (3.11, 3.12) are available from the AppStream repository and provide significant performance improvements — CPython 3.11 is 10–60% faster than 3.10 for most workloads. The […]

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Common Problems 117009

Ubuntu 22.04 LTS – NTP is unsynchronized and TLS or package operations fail

🟡 Medium   ⏱ 5–30 min  Last verified: 30 November 2022 Affected versions: Ubuntu 22.04 LTS Ubuntu 22.04 Ubuntu 22.04.4 📖 ~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 […]

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Rocky Linux 9 — gnome-shell — vulnerability — patch and remediation guide — diagnosis and fix on Rocky Linux 9

Rocky Linux 9 — gnome-shell — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Rocky Linux 9 📖 ~4 min read  •  Source: Rocky Linux RXSA RLBA-2022:7982 Upstream summary: For detailed information on changes in this release, see the Rocky Linux 9.1 Release Notes linked from the References section. Table of contents Symptom & Impact Environment […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 30 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2010-0831 CVE-2010-2322 Upstream summary: Directory traversal vulnerability in the extract_jar function in jartool.c in FastJar 0.98 allows remote attackers to create or overwrite arbitrary files via a .. […]

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Debian 11 — link-grammar — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — link-grammar — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 30 November 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2007-5395 Upstream summary: Stack-based buffer overflow in the separate_word function in tokenize.c in Link Grammar 4.1b and possibly other versions, as used in AbiWord Link Grammar 4.2.4, allows […]

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