Linux

Fedora 42 — dotnet8.0 — multiple vulnerabilities (8 CVEs) — patch and remediation guide — diagnosis and fix on Fedora 42

Fedora 42 — dotnet8.0 — multiple vulnerabilities (8 CVEs) — patch and remediation guide

  • June 6, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Fedora 42 📖 ~4 min read  •  Source: Fedora update FEDORA-2026-b1a2f623e7 Related CVEs: CVE-2026-32175 CVE-2026-32177 CVE-2026-35433 CVE-2026-42899 CVE-2026-26171 CVE-2026-32178 CVE-2026-32203 CVE-2026-33116 Upstream summary: Update to .NET SDK 8.0.127 and Runtime 8.0.27 Fixes: CVE-2026-32175,CVE-2026-32177,CVE-2026-35433,CVE-2026-42899 Release Notes: – SDK: https://github.com/dotnet/core/blob/main/release-notes/8.0/8.0.27/8.0.127.md – Runtime: https://github.com/dotnet/core/blob/main/release-notes/8.0/8.0.27/8.0.27.md Table […]

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Common Problems 115894

Ubuntu 26.04 LTS – apt update fails due to dpkg lock contention – Fix & Prevention

  • June 6, 2026
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 6 June 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~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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AlmaLinux 10 — xorg-x11-server-Xwayland — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — xorg-x11-server-Xwayland — multiple vulnerabilities (6 CVEs) — patch and remediation guide

  • June 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:11352 Related CVEs: CVE-2026-33999 CVE-2026-34001 CVE-2026-34003 CVE-2025-62229 CVE-2025-62230 CVE-2025-62231 Upstream summary: Xwayland is an X server for running X clients under Wayland. Security Fix(es): * xorg: xwayland: X.Org X server: Denial of […]

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Common Problems 116115

Ubuntu 26.04 LTS – Failed sudo due to broken PAM configuration – Fix & Prevention

  • June 5, 2026
  • Linux
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🔴 Critical   ⏱ 5–30 min  Last verified: 5 June 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~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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Common Problems 116037

Ubuntu 26.04 LTS – journal logs consume root filesystem unexpectedly – Fix & Prevention

  • June 5, 2026
  • Linux
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🟡 Medium   ⏱ 5–30 min  Last verified: 5 June 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~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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AlmaLinux 10 — image-builder — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — image-builder — multiple vulnerabilities (5 CVEs) — patch and remediation guide

  • June 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:13642 Related CVEs: CVE-2026-25679 CVE-2025-61726 CVE-2025-61729 CVE-2025-68121 CVE-2025-58183 Upstream summary: A local binary for building customized OS artifacts such as VM images and OSTree commits. Uses osbuild under the hood. Security Fix(es): […]

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Alpine Linux edge — pgbouncer — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — pgbouncer — multiple vulnerabilities (2 CVEs) — patch and remediation guide

  • June 5, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.25.1-r0 📖 ~4 min read  •  Source: Alpine secdb entry — pgbouncer 1.25.1-r0 Related CVEs: CVE-2025-12819 CVE-2021-3935 Upstream summary: Alpine community repository for vedge ships pgbouncer 1.25.1-r0 which addresses CVE-2025-12819. Table of contents Symptom & Impact […]

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Amazon Linux 2023 — freerdp — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — freerdp — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • June 5, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2023 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2023-2026-1549 Related CVEs: CVE-2026-33952 CVE-2026-33977 CVE-2026-33982 CVE-2026-33983 CVE-2026-33984 CVE-2026-33985 CVE-2026-33986 CVE-2026-33987  +12 more Upstream summary: DoS via WINPR_ASSERT in rts_read_auth_verifier_no_checks NOTE: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4v4p-9v5x-hc93 (CVE-2026-33952) DoS via WINPR_ASSERT in IMA ADPCM audio […]

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Debian 13 — mdadm — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — mdadm — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • June 5, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 5 June 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2014-5220 CVE-2023-28736 CVE-2023-28938 Upstream summary: The mdcheck script of the mdadm package for openSUSE 13.2 prior to version 3.3.1-5.14.1 does not properly sanitize device names, which allows local […]

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Debian 13 — ruby-mail — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Debian 13

Debian 13 — ruby-mail — multiple vulnerabilities (3 CVEs) — patch and remediation guide

  • June 5, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 5 June 2026 Affected versions: Debian 13 (trixie) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2012-2139 CVE-2012-2140 CVE-2015-9097 Upstream summary: Directory traversal vulnerability in lib/mail/network/delivery_methods/file_delivery.rb in the Mail gem before 2.4.4 for Ruby allows remote attackers to read arbitrary files via a .. […]

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