Package Management

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 21 February 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8612 CVE-2020-15238 Upstream summary: The EnableNetwork method in the Network class in plugins/mechanism/Network.py in Blueman before 2.0.3 allows local users to gain privileges via the dhcp_handler argument. Table […]

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

Debian 11 — python-rply — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 21 February 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-1604 CVE-2014-1938 Upstream summary: The parser cache functionality in parsergenerator.py in RPLY (aka python-rply) before 0.7.1 allows local users to spoof cache data by pre-creating a temporary rply-*.json […]

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Oracle Linux 8 — glibc — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — glibc — vulnerability — patch and remediation guide (ELSA-2022-0896)

🟡 Medium   ⏱ 10–30 min  Last verified: 21 February 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-0896 Related CVEs: CVE-2022-23218 CVE-2022-23219 CVE-2021-3999 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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Oracle Linux 8 — python39:3.9 and python39-devel:3.9 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — python39:3.9 and python39-devel:3.9 — vulnerability — patch and remediation guide (ELSA-2021-4160)

🟡 Medium   ⏱ 10–30 min  Last verified: 21 February 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-4160 Related CVEs: CVE-2021-28957 CVE-2021-29921 CVE-2021-33503 CVE-2021-3426 CVE-2021-3572 CVE-2021-3733 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – […]

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Arch Linux — putty — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — putty — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202107-37 Related CVEs: CVE-2021-36367 Upstream summary: Type: content spoofing. Status: Fixed. Affected: 0.75-1. Fixed in: 0.76-1. Group: AVG-2143. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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IBM AIX 7.3 — CVE-2019-4681 — xss — patch and remediation guide — diagnosis and fix on IBM AIX 7.3

IBM AIX 7.3 — CVE-2019-4681 — xss — patch and remediation guide

🟡 Medium   ⏱ 15–45 min  Last verified: 20 February 2022 Affected versions: IBM AIX 7.3 📖 ~4 min read  •  Source: NVD CVE-2019-4681, IBM Support Bulletin CVE: CVE-2019-4681 NVD summary: IBM Tivoli Netcool Impact 7.1.0.0 through 7.1.0.17 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web […]

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Oracle Linux 8 — .NET Core on Red Hat Enterprise Linux — security and stability fixes — required update — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — .NET Core on Red Hat Enterprise Linux — security and stability fixes — required update

🔴 Critical   ⏱ 15–90 min  Last verified: 20 February 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0130 Related CVEs: CVE-2020-0602 CVE-2020-0603 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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AlmaLinux 8 — uuid — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — uuid — 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-2021:1902 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Install Composer on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Install Composer on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying install composer on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Composer on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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