2026 - Page 1276 of 1373

Ubuntu 20.04 — linux-azure-5.15 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — linux-azure-5.15 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

  • January 23, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 23 January 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-8255-2 Related CVEs: CVE-2023-2640 CVE-2023-32629 CVE-2026-23112 CVE-2026-23273 CVE-2022-49465 CVE-2022-49635 CVE-2023-53421 CVE-2023-53520  +12 more Upstream summary: Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux […]

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How to Use sssd for LDAP Authentication on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Use sssd for LDAP Authentication on RHEL 10

  • January 22, 2026
  • Linux
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Introduction How to Use sssd for LDAP Authentication on RHEL 10 on RHEL 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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Common Problems 113895

RHEL 10 – dnf update fails with metadata checksum mismatch from mirror

  • January 22, 2026
  • Linux
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🟠 High   ⏱ 5–30 min  Last verified: 22 January 2026 Affected versions: RHEL 10 RHEL 10.0 RHEL 10.1 📖 ~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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Amazon Linux 2023 — fontforge — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2023

Amazon Linux 2023 — fontforge — multiple vulnerabilities (7 CVEs) — patch and remediation guide

  • January 22, 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 ALAS2023-2026-1431 Related CVEs: CVE-2025-15270 CVE-2025-15269 CVE-2025-15275 CVE-2025-15279 CVE-2025-50949 CVE-2024-25081 CVE-2024-25082 Upstream summary: FontForge SFD File Parsing Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers […]

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Alpine Linux edge — thrift — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — thrift — multiple vulnerabilities (9 CVEs) — patch and remediation guide

  • January 22, 2026
  • Linux
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🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 0.23.0-r0 📖 ~4 min read  •  Source: Alpine secdb entry — thrift 0.23.0-r0 Related CVEs: CVE-2025-48431 CVE-2026-41602 CVE-2026-41603 CVE-2026-41604 CVE-2026-41605 CVE-2026-41606 CVE-2026-41607 CVE-2026-41636  +1 more Upstream summary: Alpine community repository for vedge ships thrift 0.23.0-r0 which […]

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Oracle Linux 10 — poppler — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — poppler — vulnerability — patch and remediation guide (ELSA-2026-0128)

  • January 22, 2026
  • Linux
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🟡 Medium   ⏱ 10–30 min  Last verified: 22 January 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-0128 Related CVEs: CVE-2025-32365 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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FreeBSD 15 — serf — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — serf — vulnerability — patch and remediation guide

  • January 22, 2026
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 22 January 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: serf — SSL Certificate Null Byte Poisoning Related CVEs: CVE-2014-3504 Upstream summary: serf Development list reports: Serf provides APIs to retrieve information about a certificate. These APIs return the information […]

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FreeBSD 15 — mutt-ng — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — mutt-ng — security advisory — patch and remediation guide

  • January 22, 2026
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 22 January 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: mutt — Remote Buffer Overflow Vulnerability Upstream summary: SecurityFocus reports: Mutt is prone to a remote buffer-overflow vulnerability. This issue is due to the application's failure to properly bounds-check user-supplied […]

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FreeBSD 15 — fwbuilder — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — fwbuilder — vulnerability — patch and remediation guide

  • January 22, 2026
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 22 January 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: fwbuilder — security issue in temporary file handling Related CVEs: CVE-2009-4664 Upstream summary: Firewall Builder release notes reports: Vadim Kurland ([email protected]) reports: Fwbuilder and libfwbuilder 3.0.4 through to 3.0.6 generate […]

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FreeBSD 15 — hsftp — security advisory — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — hsftp — security advisory — patch and remediation guide

  • January 22, 2026
  • BSD
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🟢 Low   ⏱ 5–15 min  Last verified: 22 January 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: hsftp format string vulnerabilities Upstream summary: Ulf Härnhammar discovered a format string bug in hsftp's file listing code may allow a malicious server to cause arbitrary code execution by the […]

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