Linux

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

Alpine Linux edge — dropbear — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • June 8, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 2026.91-r0 📖 ~4 min read  •  Source: Alpine secdb entry — dropbear 2026.91-r0 Related CVEs: CVE-2019-6111 CVE-2026-35385 CVE-2025-14282 CVE-2025-47203 CVE-2023-48795 CVE-2018-20685 CVE-2018-15599 Upstream summary: Alpine main repository for vedge ships dropbear 2026.91-r0 which addresses CVE-2019-6111. Table […]

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Debian 12 — nix — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — nix — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • June 8, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 8 June 2026 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2024-27297 CVE-2024-36050 CVE-2024-38531 CVE-2024-47174 CVE-2026-39860 Upstream summary: Nix is a package manager for Linux and other Unix systems. A fixed-output derivations on Linux can send file descriptors to […]

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Alpine Linux edge — dotnet9-runtime — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — dotnet9-runtime — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • June 8, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 9.0.6-r0 📖 ~4 min read  •  Source: Alpine secdb entry — dotnet9-runtime 9.0.6-r0 Related CVEs: CVE-2025-30399 CVE-2025-26646 CVE-2025-26682 CVE-2025-24070 CVE-2026-32177 CVE-2026-35433 CVE-2026-32175 CVE-2026-42899  +12 more Upstream summary: Alpine community repository for vedge ships dotnet9-runtime 9.0.6-r0 which […]

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Debian 13 — pykerberos — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — pykerberos — vulnerability — patch and remediation guide

  • June 8, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 8 June 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-3206 Upstream summary: The checkPassword function in python-kerberos does not authenticate the KDC it attempts to communicate with, which allows remote attackers to cause a denial of service (bad […]

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Debian 13 — prosody — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — prosody — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • June 8, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 8 June 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-2205 CVE-2011-2531 CVE-2011-2532 CVE-2014-2744 CVE-2014-2745 CVE-2016-0756 CVE-2016-1231 CVE-2016-1232  +12 more Upstream summary: Prosody before 0.8.1 does not properly detect recursion during entity expansion, which allows remote attackers to […]

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Debian 13 — amavisd-new — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — amavisd-new — vulnerability — patch and remediation guide

  • June 8, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 8 June 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2024-28054 Upstream summary: Amavis before 2.12.3 and 2.13.x before 2.13.1, in part because of its use of MIME-tools, has an Interpretation Conflict (relative to some mail user agents) when […]

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How to Set Up Two-Factor Authentication (2FA) for SSH on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Detect Rootkits with rkhunter on Ubuntu 26.04

  • June 8, 2026
  • Linux
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rkhunter (Rootkit Hunter) is a security tool that scans for rootkits, backdoors, and local exploits on Linux systems. It checks for known malware, suspicious file attributes, hidden files, and unusual system configurations. This guide installs and configures rkhunter on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user […]

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Debian 13 — py-lmdb — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — py-lmdb — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • June 8, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 8 June 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2019-16224 CVE-2019-16225 CVE-2019-16226 CVE-2019-16227 CVE-2019-16228 Upstream summary: An issue was discovered in py-lmdb 0.97. For certain values of md_flags, mdb_node_add does not properly set up a memcpy destination, […]

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Common Problems 116019

Ubuntu 26.04 LTS – GNOME Shell memory usage grows continuously

  • June 8, 2026
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 8 June 2026 Affected versions: Ubuntu 26.04 LTS Ubuntu 26.04 Ubuntu 26.04.1 📖 ~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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Debian 13 — node-ansi-up — vulnerability — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — node-ansi-up — vulnerability — patch and remediation guide

  • June 8, 2026
  • Linux
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🟢 Low   ⏱ 5–15 min  Last verified: 8 June 2026 Affected versions: Debian 13 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2021-3377 Upstream summary: The npm package ansi_up converts ANSI escape codes into HTML. In ansi_up v4, ANSI escape codes can be used to create HTML hyperlinks. Due to insufficient […]

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AIX AlmaLinux Alpine Linux authentication authorization Backup Recovery Boot Startup Cloud Integration Common Problems Cpu Memory Database Debian Debian 11 Debian 12 Bookworm Debian 13 Trixie DNS Firewall Fix Prevention FreeBSD FreeBSD 12 FreeBSD 13 FreeBSD 14 FreeBSD 15 Kernel Drivers Logging Monitoring Lvm Raid NetBSD Networking openSUSE Operations Oracle Linux Oracle Linux 8 Oracle Linux 9 Package Management Performance Proxy Security Hardening SLES Storage Disk Systemd Services Tls Ssl Troubleshooting ubuntu VPN windows server
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