Package Management

Debian 13 — graphite-web — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — graphite-web — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • November 9, 2025
  • Linux
  • Comment off

🟡 Medium   ⏱ 10–30 min  Last verified: 9 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-5093 CVE-2013-5942 CVE-2013-5943 CVE-2017-18638 CVE-2022-4728 CVE-2022-4729 CVE-2022-4730 Upstream summary: The renderLocalView function in render/views.py in graphite-web in Graphite 0.9.5 through 0.9.10 uses the pickle Python module unsafely, which […]

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Alpine Linux 3.20 — rpm — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — rpm — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • November 9, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 4.18.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — rpm 4.18.0-r0 Related CVEs: CVE-2021-35937 CVE-2021-35938 CVE-2021-35939 CVE-2021-3521 CVE-2021-3421 CVE-2021-20271 CVE-2021-20266 Upstream summary: Alpine community repository for vv3.20 ships rpm 4.18.0-r0 which addresses CVE-2021-35937. Table […]

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How to Configure HAProxy for HTTP and TCP Load Balancing on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure HAProxy for HTTP and TCP Load Balancing on RHEL 9

  • November 9, 2025
  • Linux
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HAProxy (High Availability Proxy) is a battle-hardened open-source load balancer and proxy for TCP and HTTP workloads. Where Nginx load balancing is sufficient for simple round-robin HTTP distribution, HAProxy provides a richer feature set: advanced health checks with multiple failure thresholds, ACL-based routing, Layer 4 TCP load balancing for non-HTTP protocols (MySQL, Redis, SMTP), detailed […]

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How to Set Up Database Backups with Percona XtraBackup on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Set Up Database Backups with Percona XtraBackup on SLES 16

Introduction This tutorial covers How to Set Up Database Backups with Percona XtraBackup on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up […]

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Debian 12 — python-tornado — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — python-tornado — multiple vulnerabilities (11 CVEs) — patch and remediation guide

  • November 9, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 9 November 2025 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-2374 CVE-2013-2099 CVE-2014-9720 CVE-2023-28370 CVE-2024-52804 CVE-2025-47287 CVE-2025-67724 CVE-2025-67725  +3 more Upstream summary: CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote attackers to inject […]

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Common Problems 113908

RHEL 10 Subscription-Manager Reports System Not Registered

  • November 9, 2025
  • Linux
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🔴 Critical   ⏱ 5–30 min  Last verified: 9 November 2025 Affected versions: RHEL 10 📖 ~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 & […]

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Debian 13 — opensmtpd — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — opensmtpd — multiple vulnerabilities (9 CVEs) — patch and remediation guide

  • November 9, 2025
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 9 November 2025 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-2125 CVE-2015-7687 CVE-2020-35679 CVE-2020-35680 CVE-2020-7247 CVE-2020-8793 CVE-2020-8794 CVE-2023-29323  +1 more Upstream summary: OpenSMTPD before 5.3.2 does not properly handle SSL sessions, which allows remote attackers to cause a […]

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How to Set Up Nginx Load Balancing on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Set Up Nginx Load Balancing on SLES 16

Introduction This tutorial covers How to Set Up Nginx Load Balancing on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: […]

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openSUSE Tumbleweed — k9s — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — k9s — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • November 9, 2025
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2025:20516-1 (see also SUSE bugzilla) Related CVEs: CVE-2025-53547 CVE-2024-26147 CVE-2023-25165 Upstream summary: Helm is a package manager for Charts for Kubernetes. Prior to 3.18.4, a specially crafted Chart.yaml file along with a […]

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How to Set Up Varnish Cache as a Reverse Proxy on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Set Up Varnish Cache as a Reverse Proxy on RHEL 9

  • November 9, 2025
  • Linux
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Varnish Cache is a high-performance HTTP reverse proxy designed specifically for caching. Unlike Nginx FastCGI cache which caches PHP output files on disk, Varnish stores cached objects entirely in RAM and can serve tens of thousands of requests per second from memory. Varnish operates in front of your web server: it listens on port 80 […]

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